DT Online - User contributions [en-gb]

File:DTOLnew300.png

2021-10-07T15:23:16Z

Phil: Email signature image

== Summary ==
Email signature image

MediaWiki:Common.js

2019-11-13T12:09:20Z

Phil:

/* Any JavaScript here will be loaded for all users on every page load. */

MediaWiki:Common.js

2019-11-13T09:43:58Z

Phil:

/* Any JavaScript here will be loaded for all users on every page load. */

<script async src="https://www.googletagmanager.com/gtag/js?id=UA-65947474-1"></script>
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MediaWiki:Common.css

2019-10-11T10:31:06Z

Phil:

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Timber Conversion

2018-08-04T15:27:24Z

Phil: spelling correction gain->grain x 2

[[File:Mendel I 065 v.jpg|200px|right|Mendel I 065 v]]
__TOC__

=====Introduction=====

Soon after being cut down, or [https://en.wikipedia.org/wiki/Felling '''Felled'''], trees should be cut into useable sections - a process known as [https://en.wikipedia.org/wiki/Lumber '''Conversion''']. A growing tree contains a high percentage of moisture and is most easily cut when in this '''''green''''' state. But the large amount of moisture also makes the tree heavy and so overhead cable-ways, railways and rivers are used to transport the logs to the timber yards - in addition to trucks where roads are possible.
[[File:VitruviusBoxedHeart.png|150px|right|Vitruvius Boxed Heart]]

=====History=====

[https://en.wikipedia.org/wiki/Hand_saw '''Saws'''] are known to have existed in '''[[:Category:Ancient Egypt|Ancient Egypt]]''' from illustrations at the tomb of Nebamun and [https://en.wikipedia.org/wiki/Ipuki Ipuki] in Thebes for example. In addition, there are many engravings and other illustrations showing the '''[[:Category:Middle Ages|Medieval]]''' use of large two-handed [https://en.wikipedia.org/wiki/Whipsaw '''Frame Saws'''] over a [https://en.wikipedia.org/wiki/Saw_pit '''Saw Pit'''] - and the later development of powered sawmills.

[[File:StoffelsSägeMühle2.JPG|300px|right|StoffelsSägeMühle2]]
Early saws were not as efficient as modern versions, and mostly powered only by hand, so it is probable that many logs were [https://en.wikipedia.org/wiki/Cleaving_axe#Cleaving Cleaved] since this is relatively easily done whilst logs are in their '''''green''''' state.

A '''[[:Category:The Romans|Roman]]''' engineer called [https://en.wikipedia.org/wiki/Vitruvius '''Vitruvious'''], a contemporary of Julius Caesar, refers to the lowest part of the tree which is free of knots, and after throwing away the '''Sapwood''' being, ‘‘'''''split''' up into four pieces and prepared for joiner's work, and so is called 'clearstock'.’’ - [https://en.wikipedia.org/wiki/De_architectura [Ref: De Architectura, Book II, 9.7, 4] from [http://structuralarchaeology.blogspot.co.uk/2011/10/vitruvius-on-trees.html Vitruvius on Trees]]''. This provides an early description of '''Timber Conversion'''.

A few hundred years later, around 3AD the '''[[:Category:The Romans|Romans]]''' developed a [https://en.wikipedia.org/wiki/Sawmill '''Water-powered Sawmill'''] but even after, these were not common across Europe until the 18th Century.

[[File:GangSaw.png|200px|right|Gang Saw]]
=====Modern Sawmill=====

A large industrial size [https://en.wikipedia.org/wiki/Head_saw '''Gang Saw'''] can saw a whole log into planks with one pass. These are a development of the early '''[[Framesaw|Frame Saws]]''' with multiple blades, set a fixed width apart, that are powered to reciprocate up and down.

[https://en.wikipedia.org/wiki/Head_saw '''Gang Saws'''] are still used and during the mid-19th Century steam powered [https://en.wikipedia.org/wiki/Sawmill '''Circular Saws'''] were introduced leading on to the the '''Double Circular Saw''' - with one blade above the other to enable larger diameter logs to be cut.

Many modern [https://en.wikipedia.org/wiki/Sawmill '''Sawmills'''] now use an electrically powered horizontal [https://en.wikipedia.org/wiki/Bandsaw#Timber_cutting '''Bandsaws''']. These can cope with wider logs and make less waste than [https://en.wikipedia.org/wiki/Circular_saw#Sawmill_blades '''Circular Saws'''] because of their smaller '''[[Kerf]]'''.

=====Sawing Through and Through=====

As trees grow they become thicker by adding new cells beneath the bark which create a new outer ring of wood each year. These growth rings are known as the '''Annular Rings'''. The orientation of the '''Annular Rings''', as seen on the [https://en.wikipedia.org/wiki/Wood_grain '''End Grain'''] of a board, has a significant influence on its characteristics ''(e.g. grain appearance, stability, wear resistance)''.

'''Live Sawing''' or sawing '''Through and Through''' is the most economical method of timber '''Conversion'''. With a horizontal [https://en.wikipedia.org/wiki/Bandsaw#Timber_cutting '''Bandsaw'''] successive cuts are taken down from the top down to the clamps then the log turned over to repeat.

[[File:SawnTimber.png |500px|right|Live Sawn Timber]]
The process produces three types of board:
* [https://en.wikipedia.org/wiki/Lumber#Conversion_of_wood_logs '''Plain Sawn'''] ''(aka Slash, Flat or Crown Sawn)'' - the '''Annular Rings''' are at less than 45<sup>0</sup> to the face of the board;
* [https://en.wikipedia.org/wiki/Quarter_sawing '''Quarter Sawn'''] - the best of which is taken near the centre of the tree such that the rings are approaching 90<sup>0</sup> to the face of the board;
* [https://en.wikipedia.org/wiki/Rift_sawing '''Rift Sawn'''] - a cut in between Plain Sawn and Quarter Sawn

'''Back Sawing''', '''Sawing Around''' and '''Quarter Sawing''' are terms given other methods of conversion, some of which require the log frequently to be repositioned, but can be used to maximise the production of particular cuts of timber.

[[File:PlainQuarterRiftsawnDifferenceDiagram.png|200px|right|Differences between Plain, Rift and Quarter Sawn timber conversion]]
=====Characteristics of Different Boards=====

As timber dries out, the '''Annular Rings''' tend to shorten slightly and straighten out. There is little effect on the length of a board but shrinkage will occur across its width. Different cuts therefore react differently as the timber dries out.

The appearance of the [https://en.wikipedia.org/wiki/Wood_grain '''Wood Grain'''] is affected by the way the board is cut. '''Annular Rings''' at a steep angle to the face will appear as straight grain whereas if at a shallow angle, or '''Tangentially Cut''', a wavy grain figure is produced. Also, just as with [https://en.wikipedia.org/wiki/Wood_grain '''End Grain'''], the ends of the '''Annular Rings''' resist wear and so [https://en.wikipedia.org/wiki/Quarter_sawing '''Quarter Sawn'''] timber is not only the most stable but also the most hard wearing. Furthermore, [https://en.wikipedia.org/wiki/Quarter_sawing '''Quarter Sawn'''] timber, because it is radially cut, shows the radial [https://en.wikipedia.org/wiki/Medullary_ray_(botany) '''Medullary Rays'''] on the face of some timbers.

======• Plain Sawn, Tangentially Cut Timber======

'''Plain Sawn''' timber is the most inexpensive and common type of cut. The growth rings are generally 30<sup>0</sup> or less to the face of the board. It is known as '''Tangentially Cut''' timber and is used extensively in the building industry ''(e.g. for joists etc.)''. The resulting wood displays a wavy pattern on the face of the board. Because of the curve of the growth rings this timber is most prone to '''[[Timber Defects|Cupping]]'''.
[[File:QuarterSawn.png |150px|right|Quarter Sawing Timber]]

======• Quarter Sawn, Radially Cut Timber======

'''Radially Cut''' timber produces the most stable and hard wearing timber but it is also the most expensive. Annual growth rings form an angle greater than 45<sup>0</sup> to the face of the board. '''Live Sawing''' produces only a limited amount of '''Quarter Sawn''' boards and '''Quarter Sawing''' can involve the log being repositioned many times to produce the radial cuts, which increases cost. It also results in more waste. '''Quarter Sawing''' may be used for timbers such a Oak for example, because cutting along its [https://en.wikipedia.org/wiki/Medullary_ray_(botany) '''Medullary Rays'''] will produce the much prized highly figured Oak.
[[File:RiftSawn.png|150px|right|Quarter and Rift Sawing Timber]]

======• Rift Sawn Timber======

'''Rift Sawn''' ''(shown shaded)'' is the cut which falls between '''Plain Sawn''' and true '''Quarter Sawn'''. Annual growth rings form an angle between 30<sup>0</sup> and 60<sup>0</sup> to the face of the board making it suitable for quality floor boards, for example, because it wears well and is reasonably stable. It is straight grained but, because it is not '''Radially Cut''' does not reveal any 'silver ribbon' grain features in timbers such as Oak.

[[Category:Materials and Components]]
[[Category:Timber]]

Sundial Design Tools

2017-04-24T11:45:02Z

Phil: Add instructions for copying Google sheets

[[File:SundialCalculator.png|300px|right]]
__TOC__

=====Description=====

'''DT Online''' has created online tools to help calculate the '''Hour Lines''' for different '''Sundial''' types. They are:
* [http://docs.google.com/spreadsheets/d/1KqtSFP4Xxz4WlwKROGcv7w-YDGwW_7bGwek0IqSSgTk/edit?usp=sharing '''Sundial Calculator'''] - a Google Sheet
* '''[[Horizontal Sundial Designer]]''' - '''[[CAD|Parametric]]''' design tool.
* '''[[Vertical Sundial Designer]]''' - '''[[CAD|Parametric]]''' design tool.
* '''[[Polar Sundial Designer]]''' - '''[[CAD|Parametric]]''' design tool.

See '''[[Packaging Designer User Guide]]''' for further information.

=====Features and Applications=====

The '''DT Online Design Tools''' will calculate either the number of degrees to measure the '''Hour Line''' angle away from the Noon position or the distance away from it as appropriate to the type of '''Sundial'''.

[[File:HourLines.png|750px|center]]

----
<span style="color: green">'''Note:'''
In order to use the Google Sheets, you need to be logged in to a google account. You can then click on 'Make A Copy' from the 'File' menu to give you a spreadsheet you can work on.</span>
----
* The Google Sheets
[http://docs.google.com/spreadsheets/d/1KqtSFP4Xxz4WlwKROGcv7w-YDGwW_7bGwek0IqSSgTk/edit?usp=sharing '''Sundial Calculator'''] accepts the Sundial location '''[[Latitude]]''' as the main input and returns values for all '''Hour Lines''' as follows:
** for Horizontal and Vertical Sundials, the number of degrees each one falls away from the central Noon line;
** for Polar Sundials, the distances along the '''Dial Plate''' of each '''Hour LIne''' for a given height of '''[[Sundials and Gnomons|Gnomon]]'''.
* The '''[[Horizontal Sundial Designer|Horizontal]]''' and '''[[Vertical Sundial Designer|Vertical Sundial Designers]]''' accept the Sundial location '''[[Latitude]]''' and your chosen dimensions for the completed '''Dial Plate''' as inputs and output the following:
** a table showing the number of degrees each '''Hour Line''' falls away from the central Noon line;
** a CAD drawing of the resulting '''Dial Plate''' which can be used as a '''[[Template]]'''.
* The '''[[Polar Sundial Designer]]''' offers a choice of either a '''Flat Dial Plate''' or a '''Curved Dial Plate''' and a table which enables inputs of your chosen dimensions for the completed '''Dial Plate''' ''(e.g. Gnomon height, width of plate, radius of curvature for curved plate option)'' and outputs the following:
** a table showing the distances each '''Hour Line''' away from the central Noon line;
** CAD drawings of elevations of the resulting '''Dial Plates''' plus '''[[Template|Templates]]''' which can be used to transfer the '''Hour Lines''' on to your chosen material ''(note that curved plates can provide for a greater range of hours)''.

{{Sundials Buyers Guide}}

[[Category:Sundials]]

File:Diallogo2014.png

2017-04-19T11:08:39Z

Phil: Dial Solutions Logo

Dial Solutions Logo

Microphone

2016-11-30T13:52:00Z

Phil:

[[File:Microphone slant.svg|300px|right]]
__TOC__

=====Description=====

[https://en.wikipedia.org/wiki/Microphone '''Microphones'''] convert sound energy into electrical energy.

=====Features and Applications=====

There are a number of types :-

'''Moving coil''' - similar in construction to a loudspeaker but working in reverse. The sound vibrates the diaphragm which in turn moves the coil and induces an emf into it.

'''Crystal or Piezo''' - sounds hitting the Piezo material causes minute currents to flow.

""Ribbon"" - a lightweight foil ribbon is suspended in a strong magnetic field. When sound hits the ribbon it vibrates within the magnetic field and generates a small current.

'''Capacitor''' - a lightweight charged diaphragm is positioned close to another charged plate. When sound hits the diaphragm it varies the gap and hence the capacitance. As the microphone needs to be polarised (i.e. have a fixed voltage applied across it), varying the capacitance also varies the voltage and therefore gives a true representation of the sound at the output.

{{Bells/Buzzers/Mics/Speakers Buyers Guide}}

[[Category:Secondary]]
[[Category:Electronics Components]]

Template:Bridge Models Buyers Guide

2016-11-03T12:58:46Z

Phil: Get rid of buyers guide wrapper div

{{Buyers Guide Heading}}

{|
|-
|
* The single bridge design models and puzzles shown are all based on Tower Bridge for comparison but other designs are available in most of the kit ranges.

* More varied models can be constructed using the materials listed at '''[[Truss Bridge Models]]''' or '''[[Stripwood Technology Materials]]''' and tools described in '''[[Stripwood Technology Tools]]'''.
| {{#ev:youtube|fS42ISUYzxI|150x150|right||frame|loop=1&autoplay=0&playlist=fS42ISUYzxI}}
Click top left to enlarge
|}
{|
|-
| <dtamazon product="B01CQBNEHG" type="image">Engino "STEM Structures" Buildings and Bridges Set </dtamazon>
| <dtamazon product="1936749513" type="image">Bridges and Tunnels (Build it Yourself)</dtamazon>
| <dtamazon product="B0007002WE" type="image">K'Nex Stem Real Bridge Building Set</dtamazon>
| <dtamazon product="B003Q6BQOY" type="image">LEGO Creator 10214: Tower Bridge</dtamazon>
| <dtamazon product="B009QATZR4" type="image">MATCHSTICK MODEL KIT OF LONDON'S TOWER BRIDGE INCLUDES MATCHSTICK SAFETY CUTTER </dtamazon>
| <dtamazon product="B016XRF576" type="image">EKIND 3D Laser Cut Building Metal Model Kit Metallic Nano Puzzle Educational DIY Assembling Toy - London Tower Bridge </dtamazon>
| <dtamazon product="B007ADIGVU" type="image">Ravensburger London Tower Bridge Building 3d Puzzle (216 Pieces) </dtamazon>
| <dtamazon product="B01CZSNCW2" type="image">Dodolive Interactive Assembly DIY 3D Wooden Jigsaw Puzzle,Model of London Tower Bridge </dtamazon>
| <dtamazon product="B000640TZQ" type="image">Tower Bridge - QUAY Woodcraft Construction Kit FSC </dtamazon>
| <dtamazon product="B00MEDW0T0" type="image">NiXiM 3D puzzle Tower Bridge 80 cm long (31.5") architecture model</dtamazon>
|-
| <dtamazon product="B01CQBNEHG" type="text">Engino "STEM Structures" Buildings and Bridges Set </dtamazon>
| <dtamazon product="1936749513" type="text">Bridges and Tunnels (Build it Yourself)</dtamazon>
| <dtamazon product="B0007002WE" type="text">K'Nex Stem Real Bridge Building Set</dtamazon>
| <dtamazon product="B003Q6BQOY" type="text">LEGO Creator 10214: Tower Bridge</dtamazon>
| <dtamazon product="B009QATZR4" type="text">Matchstick Model of Tower Bridge</dtamazon>
| <dtamazon product="B016XRF576" type="text">EKIND 3D Laser Cut Metal Model Kit - Tower Bridge </dtamazon>
| <dtamazon product="B007ADIGVU" type="text">Ravensburger Tower Bridge Building 3D Puzzle</dtamazon>
| <dtamazon product="B01CZSNCW2" type="text">3D Wooden Jigsaw Puzzle,Model of Tower Bridge </dtamazon>
| <dtamazon product="B000640TZQ" type="text">Tower Bridge - QUAY Woodcraft Construction Kit</dtamazon>
| <dtamazon product="B00MEDW0T0" type="text">NiXiM 3D puzzle Tower Bridge 80 cm long architecture model</dtamazon>
|}

MediaWiki:Common.js

2016-11-03T12:58:02Z

Phil: Get rid of code to reorder categories/buyers guide

/* Any JavaScript here will be loaded for all users on every page load. */

MediaWiki:Common.js

2016-11-02T14:33:31Z

Phil:

/* Any JavaScript here will be loaded for all users on every page load. */
$(function()
{
if($('.buyers-guide-wrapper').length && $('#mw-pages').length) $('.buyers-guide-wrapper').insertAfter($('#mw-pages'))
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Template:Bridge Models Buyers Guide

2016-11-02T14:32:33Z

Phil:

<div class="buyers-guide-wrapper">
{{Buyers Guide Heading}}

{|
|-
|
* The single bridge design models and puzzles shown are all based on Tower Bridge for comparison but other designs are available in most of the kit ranges.

* More varied models can be constructed using the materials listed at '''[[Truss Bridge Models]]''' or '''[[Stripwood Technology Materials]]''' and tools described in '''[[Stripwood Technology Tools]]'''.
| {{#ev:youtube|fS42ISUYzxI|150x150|right||frame|loop=1&autoplay=0&playlist=fS42ISUYzxI}}
Click top left to enlarge
|}
{|
|-
| <dtamazon product="B01CQBNEHG" type="image">Engino "STEM Structures" Buildings and Bridges Set </dtamazon>
| <dtamazon product="1936749513" type="image">Bridges and Tunnels (Build it Yourself)</dtamazon>
| <dtamazon product="B0007002WE" type="image">K'Nex Stem Real Bridge Building Set</dtamazon>
| <dtamazon product="B003Q6BQOY" type="image">LEGO Creator 10214: Tower Bridge</dtamazon>
| <dtamazon product="B009QATZR4" type="image">MATCHSTICK MODEL KIT OF LONDON'S TOWER BRIDGE INCLUDES MATCHSTICK SAFETY CUTTER </dtamazon>
| <dtamazon product="B016XRF576" type="image">EKIND 3D Laser Cut Building Metal Model Kit Metallic Nano Puzzle Educational DIY Assembling Toy - London Tower Bridge </dtamazon>
| <dtamazon product="B007ADIGVU" type="image">Ravensburger London Tower Bridge Building 3d Puzzle (216 Pieces) </dtamazon>
| <dtamazon product="B01CZSNCW2" type="image">Dodolive Interactive Assembly DIY 3D Wooden Jigsaw Puzzle,Model of London Tower Bridge </dtamazon>
| <dtamazon product="B000640TZQ" type="image">Tower Bridge - QUAY Woodcraft Construction Kit FSC </dtamazon>
| <dtamazon product="B00MEDW0T0" type="image">NiXiM 3D puzzle Tower Bridge 80 cm long (31.5") architecture model</dtamazon>
|-
| <dtamazon product="B01CQBNEHG" type="text">Engino "STEM Structures" Buildings and Bridges Set </dtamazon>
| <dtamazon product="1936749513" type="text">Bridges and Tunnels (Build it Yourself)</dtamazon>
| <dtamazon product="B0007002WE" type="text">K'Nex Stem Real Bridge Building Set</dtamazon>
| <dtamazon product="B003Q6BQOY" type="text">LEGO Creator 10214: Tower Bridge</dtamazon>
| <dtamazon product="B009QATZR4" type="text">Matchstick Model of Tower Bridge</dtamazon>
| <dtamazon product="B016XRF576" type="text">EKIND 3D Laser Cut Metal Model Kit - Tower Bridge </dtamazon>
| <dtamazon product="B007ADIGVU" type="text">Ravensburger Tower Bridge Building 3D Puzzle</dtamazon>
| <dtamazon product="B01CZSNCW2" type="text">3D Wooden Jigsaw Puzzle,Model of Tower Bridge </dtamazon>
| <dtamazon product="B000640TZQ" type="text">Tower Bridge - QUAY Woodcraft Construction Kit</dtamazon>
| <dtamazon product="B00MEDW0T0" type="text">NiXiM 3D puzzle Tower Bridge 80 cm long architecture model</dtamazon>
|}
</div>

Template:Bridge Models Buyers Guide

2016-11-02T14:30:45Z

Phil: Wrap template in a <div> to facilitate javascript moving the buyers guide below the category list

<div class="buyersguide">
{{Buyers Guide Heading}}

{|
|-
|
* The single bridge design models and puzzles shown are all based on Tower Bridge for comparison but other designs are available in most of the kit ranges.

* More varied models can be constructed using the materials listed at '''[[Truss Bridge Models]]''' or '''[[Stripwood Technology Materials]]''' and tools described in '''[[Stripwood Technology Tools]]'''.
| {{#ev:youtube|fS42ISUYzxI|150x150|right||frame|loop=1&autoplay=0&playlist=fS42ISUYzxI}}
Click top left to enlarge
|}
{|
|-
| <dtamazon product="B01CQBNEHG" type="image">Engino "STEM Structures" Buildings and Bridges Set </dtamazon>
| <dtamazon product="1936749513" type="image">Bridges and Tunnels (Build it Yourself)</dtamazon>
| <dtamazon product="B0007002WE" type="image">K'Nex Stem Real Bridge Building Set</dtamazon>
| <dtamazon product="B003Q6BQOY" type="image">LEGO Creator 10214: Tower Bridge</dtamazon>
| <dtamazon product="B009QATZR4" type="image">MATCHSTICK MODEL KIT OF LONDON'S TOWER BRIDGE INCLUDES MATCHSTICK SAFETY CUTTER </dtamazon>
| <dtamazon product="B016XRF576" type="image">EKIND 3D Laser Cut Building Metal Model Kit Metallic Nano Puzzle Educational DIY Assembling Toy - London Tower Bridge </dtamazon>
| <dtamazon product="B007ADIGVU" type="image">Ravensburger London Tower Bridge Building 3d Puzzle (216 Pieces) </dtamazon>
| <dtamazon product="B01CZSNCW2" type="image">Dodolive Interactive Assembly DIY 3D Wooden Jigsaw Puzzle,Model of London Tower Bridge </dtamazon>
| <dtamazon product="B000640TZQ" type="image">Tower Bridge - QUAY Woodcraft Construction Kit FSC </dtamazon>
| <dtamazon product="B00MEDW0T0" type="image">NiXiM 3D puzzle Tower Bridge 80 cm long (31.5") architecture model</dtamazon>
|-
| <dtamazon product="B01CQBNEHG" type="text">Engino "STEM Structures" Buildings and Bridges Set </dtamazon>
| <dtamazon product="1936749513" type="text">Bridges and Tunnels (Build it Yourself)</dtamazon>
| <dtamazon product="B0007002WE" type="text">K'Nex Stem Real Bridge Building Set</dtamazon>
| <dtamazon product="B003Q6BQOY" type="text">LEGO Creator 10214: Tower Bridge</dtamazon>
| <dtamazon product="B009QATZR4" type="text">Matchstick Model of Tower Bridge</dtamazon>
| <dtamazon product="B016XRF576" type="text">EKIND 3D Laser Cut Metal Model Kit - Tower Bridge </dtamazon>
| <dtamazon product="B007ADIGVU" type="text">Ravensburger Tower Bridge Building 3D Puzzle</dtamazon>
| <dtamazon product="B01CZSNCW2" type="text">3D Wooden Jigsaw Puzzle,Model of Tower Bridge </dtamazon>
| <dtamazon product="B000640TZQ" type="text">Tower Bridge - QUAY Woodcraft Construction Kit</dtamazon>
| <dtamazon product="B00MEDW0T0" type="text">NiXiM 3D puzzle Tower Bridge 80 cm long architecture model</dtamazon>
|}
</div>

MediaWiki:Common.js

2016-11-01T16:23:47Z

Phil:

/* Any JavaScript here will be loaded for all users on every page load. */
$(function()
{
if($('.buyers-guide').length && $('#mw-pages').length) $('.buyers-guide').insertAfter($('#mw-pages'))
}
);

MediaWiki:Common.js

2016-11-01T16:20:29Z

Phil: Add code to move buyers guide below category lists if both appear on a page

/* Any JavaScript here will be loaded for all users on every page load. */
$(function()
{
if($('.buyers-guide).length && $('#mw-pages').length) $('.buyers-guide'.insertAfter($('#mw-pages'))
}
);

Vertical Sundial Designer

2016-10-24T08:57:21Z

Phil: Created page with "__TOC__ =====Description===== Vertical Sundial =====Features and Applications===== To be completed <dtapollonius dwg="/images/4/4b/Sundial_vertical.txt"></dtapollonius>"

__TOC__

=====Description=====

Vertical Sundial

=====Features and Applications=====

To be completed

<dtapollonius dwg="/images/4/4b/Sundial_vertical.txt"></dtapollonius>

File:Sundial vertical.txt

2016-10-24T08:56:27Z

Phil: Vertical sundial parametric drawing

Vertical sundial parametric drawing

Horizontal Sundial Designer

2016-10-24T08:55:24Z

Phil: Created page with "__TOC__ =====Description===== Horizontal Sundial =====Features and Applications===== To be completed <dtapollonius dwg="/images/d/d7/Sundial_horizontal.txt"></dtapoll..."

__TOC__

=====Description=====

Horizontal Sundial

=====Features and Applications=====

To be completed

<dtapollonius dwg="/images/d/d7/Sundial_horizontal.txt"></dtapollonius>

File:Sundial horizontal.txt

2016-10-24T08:54:45Z

Phil: Horizontal sundial parametric drawing

Horizontal sundial parametric drawing

PCB Designer

2016-08-04T14:30:06Z

Phil: Created page with "<dtpcb></dtpcb>"

File:Hexslope.gif

2016-06-24T05:09:52Z

Phil: Hexagonal desk tidy with sloping top

Hexagonal desk tidy with sloping top

Category:Musical Instrument Nets

2016-06-23T15:11:28Z

Phil: Created page with "Nets for musical instruments Category: Packaging Category: Nets"

Nets for musical instruments
[[Category: Packaging]]
[[Category: Nets]]

Category:Optical Toy Nets

2016-06-23T15:10:35Z

Phil: Created page with "Nets for optical toys Category: Packaging Category: Nets"

Nets for optical toys
[[Category: Packaging]]
[[Category: Nets]]

Category:Desk Tidy Nets

2016-06-23T15:09:51Z

Phil: Created page with "Nets for desk tidys Category: Packaging Category: Nets"

Nets for desk tidys
[[Category: Packaging]]
[[Category: Nets]]

Train-shaped Desk Tidy

2016-06-23T15:09:12Z

Phil:

<dtapollonius dwg="/images/9/96/Train.txt"></dtapollonius>
[[File:Traindesktidy.gif|center]]
<div style="clear: both"></div>
This Desk Tray is based around the design of a Eurostar shuttle train and is made from card. This example uses the shape of the train to create an open top desk tray.

You could consider designing carriages to complement it and form a desk tray set. The main parameters in the CAD drawing are Length, Width and Height which control the sizes of the desk tray.

[[Category:Packaging]]
[[Category:Nets]]
[[Category:Non-cuboid Nets]]
[[Category:Desk Tidy Nets]]

Hexagonal Desk Tidy with sloping top

2016-06-23T15:08:56Z

Phil:

<dtapollonius dwg="/images/e/e6/Hexslope.txt"></dtapollonius>
[[File:Hexslope.gif|center]]
<div style="clear: both"></div>
This Desk Tidy is based around a hexagonal prism and is made from card. The top of the prism is angled to add interest to the design. The CAD drawing is controlled by two main parameters: Side is the length of the sides of the prism and Slope controls the angle of the sloped top of the prism.
[[Category:Packaging]]
[[Category:Nets]]
[[Category:Non-cuboid Nets]]
[[Category:Desk Tidy Nets]]

Hexagonal Desk Tidy

2016-06-23T15:08:43Z

Phil:

<dtapollonius dwg="/images/c/ce/Hex.txt"></dtapollonius>
[[File:Hex.gif|center]]
<div style="clear: both"></div>
This Desk Tidy is based around a plain hexagonal prism and is made from card. The simplicity of the shape and the lack of embellishment make for a rigid design. The main parameter of the CAD drawing is Side which controls the length of side of the prism.

[[Category:Packaging]]
[[Category:Nets]]
[[Category:Non-cuboid Nets]]
[[Category:Desk Tidy Nets]]

Bus-shaped Desk Tidy

2016-06-23T15:08:26Z

Phil:

<dtapollonius dwg="/images/d/d5/Bus.txt"></dtapollonius>
[[File:Hex.gif|center]]
<div style="clear: both"></div>
This Desk Tidy is based around a hexagonal prism and is made from card. This example uses the shape of a bus to embellish the design. Display the drawfile of the net to see the shape. The main parameter in the CAD drawing is Side which controls the length of side of the prism.
[[Category:Packaging]]
[[Category:Nets]]
[[Category:Non-cuboid Nets]]
[[Category:Desk Tidy Nets]]

Category:Stationery Nets

2016-06-23T15:07:11Z

Phil: Created page with "Nets for stationery Category: Packaging Category: Nets"

Nets for stationery
[[Category: Packaging]]
[[Category: Nets]]

Category:Flexible Nets

2016-06-23T15:06:33Z

Phil: Created page with "Nets for flexible packages Category: Packaging Category: Nets"

Nets for flexible packages
[[Category: Packaging]]
[[Category: Nets]]

Gift Bag

2016-06-23T15:05:55Z

Phil:

<dtapollonius dwg="/images/2/2c/Gift.txt"></dtapollonius>
[[File:Gift.gif|center]]
<div style="clear: both"></div>
A carry bag design, often used for small gifts and presents, which folds flat when not in use.

A suitably attractive version of the bag can be made by using good quality gift wrapping paper.

A decorative piece of cord is threaded through the holes along the top of the bag to act as a carry handle and also as a bag closure.

The holes can be punched through all layers at once after the bag has been folded and glued together.

A piece of card placed in the bottom of the bag helps to maintain its shape and increases its strength.

[[Category:Packaging]]
[[Category:Nets]]
[[Category:Non-cuboid Nets]]
[[Category:Flexible Nets]]

Category:Non-cuboid Nets

2016-06-23T15:04:55Z

Phil: Created page with "Nets for non-cuboid packages Category: Packaging Category: Nets"

Nets for non-cuboid packages
[[Category: Packaging]]
[[Category: Nets]]

Zoetrope Net

2016-06-23T15:03:13Z

Phil: Created page with "<dtapollonius dwg="/images/6/69/Zoe.txt"></dtapollonius> center <div style="clear: both"></div> The Zoetrope is a device which when rotated, allows a series o..."

<dtapollonius dwg="/images/6/69/Zoe.txt"></dtapollonius>
[[File:Zoe.gif|center]]
<div style="clear: both"></div>
The Zoetrope is a device which when rotated, allows a series of drawings to be viewed through slits in quick succession giving an animated effect. The design here is based on a 12 sided prism, and therefore allows 12 'frames' to be animated.

[[Category:Packaging]]
[[Category:Nets]]
[[Category:Non-cuboid Nets]]
[[Category:Optical Toy Nets]]

Tube net

2016-06-23T15:01:59Z

Phil: Created page with "<dtapollonius dwg="/images/d/d8/Tube.txt"></dtapollonius> center <div style="clear: both"></div> The net supplied has only one end cap for the tube, but the..."

<dtapollonius dwg="/images/d/d8/Tube.txt"></dtapollonius>
[[File:Tube.gif|center]]
<div style="clear: both"></div>
The net supplied has only one end cap for the tube, but the end cap may be easily copied if two are required. The tube is best glued along the flap. The tube shape is inherently very rigid, and even tubes made from thin card can support comparatively large weights along their axis.

[[Category:Packaging]]
[[Category:Nets]]
[[Category:Non-cuboid Nets]]

Triangular Box with lid

2016-06-23T15:00:37Z

Phil: Created page with "<dtapollonius dwg="/images/f/f4/Tri2.txt"></dtapollonius> center <div style="clear: both"></div> Attractive and unusual display/presentation package. Popular..."

<dtapollonius dwg="/images/f/f4/Tri2.txt"></dtapollonius>
[[File:Tri2.gif|center]]
<div style="clear: both"></div>
Attractive and unusual display/presentation package. Popular with sweet manufacturers.

[[Category:Packaging]]
[[Category:Nets]]
[[Category:Non-cuboid Nets]]

Triangular Prism Box

2016-06-23T14:59:27Z

Phil: Created page with "<dtapollonius dwg="/images/0/08/Tri.txt"></dtapollonius> center <div style="clear: both"></div> This package provides an attractive and unusual means of packi..."

<dtapollonius dwg="/images/0/08/Tri.txt"></dtapollonius>
[[File:Tri.gif|center]]
<div style="clear: both"></div>
This package provides an attractive and unusual means of packing a variety of materials. Can be decorated directly, or covered with printed paper.

[[Category:Packaging]]
[[Category:Nets]]
[[Category:Non-cuboid Nets]]

Train-shaped Desk Tidy

2016-06-23T14:57:52Z

Phil:

Train-shaped Desk Tidy

2016-06-23T14:57:04Z

Phil: Created page with "<dtapollonius dwg="/images/9/96/Train.txt"></dtapollonius> center <div style="clear: both"></div> This Desk Tray is based around the design of a Eurostar sh..."

<dtapollonius dwg="/images/9/96/Train.txt"></dtapollonius>
[[File:Train.gif|center]]
<div style="clear: both"></div>
This Desk Tray is based around the design of a Eurostar shuttle train and is made from card. This example uses the shape of the train to create an open top desk tray.

You could consider designing carriages to complement it and form a desk tray set. The main parameters in the CAD drawing are Length, Width and Height which control the sizes of the desk tray.

[[Category:Packaging]]
[[Category:Nets]]
[[Category:Non-cuboid Nets]]
[[Category:Desk tidy]]

Sweets Box

2016-06-23T14:54:53Z

Phil: Created page with "<dtapollonius dwg="/images/d/d6/Sweets.txt"></dtapollonius> center <div style="clear: both"></div> A presentation box with an interlocking top suitable for..."

<dtapollonius dwg="/images/d/d6/Sweets.txt"></dtapollonius>
[[File:Sweets.gif|center]]
<div style="clear: both"></div>
A presentation box with an interlocking top suitable for packaging small sweets or a single confection.

Very attractive boxes can be made from metalised card and logos or patterns cut out from self adhesive vinyl and applied to the sides.

Vinyl cutters enable the applied designs to be computer generated.

[[Category:Packaging]]
[[Category:Nets]]
[[Category:Non-cuboid Nets]]

Snap-top Box

2016-06-23T14:53:06Z

Phil: Created page with "<dtapollonius dwg="http://wiki.dtonline.org/images/9/94/Snaptop.txt"></dtapollonius> center <div style="clear: both"></div> This net is adapted from the d..."

<dtapollonius dwg="http://wiki.dtonline.org/images/9/94/Snaptop.txt"></dtapollonius>
[[File:Snaptop.gif|center]]
<div style="clear: both"></div>
This net is adapted from the design of a package used for a well known brand of kitchen cloths. Experiment with one of these packages to see how the top interlocks.

Cut out very accurately, using circle cutters and hole punches first where possible, then continue with a sharp knife and safety rule in conjunction with a cutting mat.

Crease all the fold lines using an old Biro then fix the seam using double sided tape - see the D&T Online sections on Using Card for further information.

[[Category:Packaging]]
[[Category:Nets]]
[[Category:Non-cuboid Nets]]

Sleeve

2016-06-23T14:51:40Z

Phil: Created page with "<dtapollonius dwg="/images/5/5c/Sleeve.txt"></dtapollonius> center <div style="clear: both"></div> This package forms a rectangular sleeve which may be use..."

<dtapollonius dwg="/images/5/5c/Sleeve.txt"></dtapollonius>
[[File:Sleeve.gif|center]]
<div style="clear: both"></div>
This package forms a rectangular sleeve which may be used to seal or hold together other packages. A typical use includes the provision of a decorative printed sleeve to wrap products packaged in moulded expanded polystyrene, where the product needs to have an attractive 'shelf' appearance.

The package is glued into shape with the single end tabs.

[[Category:Packaging]]
[[Category:Nets]]
[[Category:Cuboid Nets]]

Shoebox lid

2016-06-23T14:48:19Z

Phil: Created page with "<dtapollonius dwg="/images/2/2a/Shoelid.txt"></dtapollonius> center <div style="clear: both"></div> This package forms a lid for many types of base - typi..."

<dtapollonius dwg="/images/2/2a/Shoelid.txt"></dtapollonius>
[[File:Shoelid.gif|center]]
<div style="clear: both"></div>
This package forms a lid for many types of base - typically shoeboxes, many computer software boxes. Two of these lids (one slightly smaller than the other) can form a box in their own right.

The package is usually glued into shape with the corner tabs, although sometimes artwork in the form of a stick on wrap is used to hold the lid in shape.

[[Category:Packaging]]
[[Category:Nets]]
[[Category:Cuboid Nets]]

Shoebox base

2016-06-23T14:46:44Z

Phil: Created page with "<dtapollonius dwg="/images/a/a3/Shoebase.txt"></dtapollonius> center <div style="clear: both"></div> This package forms a box similar to the traditional..."

<dtapollonius dwg="/images/a/a3/Shoebase.txt"></dtapollonius>
[[File:Shoebase.gif|center]]
<div style="clear: both"></div>
This package forms a box similar to the traditional shoebox. It is designed to be used in conjunction with the 'shoebox' lid provided, but may also be used with the 'sleeve' drawing.

The package is usually glued into shape with the edge tab and the flaps that form the base.

[[Category:Packaging]]
[[Category:Nets]]
[[Category:Cuboid Nets]]

Periscope

2016-06-23T14:45:05Z

Phil: Created page with "<dtapollonius dwg="/images/6/60/Peri.txt"></dtapollonius> center <div style="clear: both"></div> Periscopes make it possible to see round corners and over th..."

<dtapollonius dwg="/images/6/60/Peri.txt"></dtapollonius>
[[File:Peri.gif|center]]
<div style="clear: both"></div>
Periscopes make it possible to see round corners and over the heads of crowds.
One mirror captures the rays of light from the object, then they are passed down to a second mirror which directs them into the eye.

[[Category:Packaging]]
[[Category:Nets]]
[[Category:Non-cuboid Nets]]
[[Category:Optical Toy Nets]]

Octagonal Box

2016-06-23T14:43:23Z

Phil: Created page with "<dtapollonius dwg="/images/7/7d/Oct.txt"></dtapollonius> center <div style="clear: both"></div> This package forms an attractive octagonal box with separate l..."

<dtapollonius dwg="/images/7/7d/Oct.txt"></dtapollonius>
[[File:Oct.gif|center]]
<div style="clear: both"></div>
This package forms an attractive octagonal box with separate lid and base. It would be used as an attractive presentation case for a variety of items including sweets. The base helps the main body retain its shape.

The package would usually be glued together with its many tabs.

[[Category:Packaging]]
[[Category:Nets]]
[[Category:Non-cuboid Nets]]

Ocarina

2016-06-23T14:38:51Z

Phil: Created page with "<dtapollonius dwg="/images/0/06/Ocarina.txt"></dtapollonius> center <div style="clear: both"></div> This Ocarina is based on a 'Icosahedron', a geometric..."

<dtapollonius dwg="/images/0/06/Ocarina.txt"></dtapollonius>
[[File:Ocarina.gif|center]]
<div style="clear: both"></div>
This Ocarina is based on a 'Icosahedron', a geometric solid made from 20 equilateral triangles. You can design your own based on other forms, such as the dodecahedron found in the non-cuboid section of D&T Online. Smaller sizes will give high notes and large ones low notes.
The length of side on the Ocarinas can be varied to experiment with different ranges. For a Soprano try between 25mm and 30mm side, Alto between 35mm and 40mm and Tenor between 45mm and 50mm. The largest you can get on an A3 sheet of card is about 65mm length of side.
The size and position of the finger holes is a matter of personal choice. You will need 8 holes to produce a full octave.

[[Category:Packaging]]
[[Category:Nets]]
[[Category:Non-cuboid Nets]]
[[Category:Musical Instrument Nets]]

Milk Carton

2016-06-23T14:35:30Z

Phil:

<dtapollonius dwg="/images/e/e1/Milk.txt"></dtapollonius>
[[File:Milkcarton.gif|center]]
<div style="clear: both"></div>
This package is most commonly seen as the everyday milk carton, but is also used for other drinks, and liquids such as refill packs of fabric conditioner. Whilst these cartons tend to be quite difficult to open, they have found favour due to the fact that they tesselate very well.

The packages are usually manufactured from waxed card, although some applications require foil lining to resist bacterial ingress.

[[Category:Packaging]]
[[Category:Nets]]
[[Category:Cuboid Nets]]

Milk Carton

2016-06-23T14:35:01Z

Phil: Created page with "<dtapollonius dwg="/images/e/e1/Milk.txt"></dtapollonius> center <div style="clear: both"></div> This package is most commonly seen as the everyday milk cart..."

<dtapollonius dwg="/images/e/e1/Milk.txt"></dtapollonius>
[[File:Milk.gif|center]]
<div style="clear: both"></div>
This package is most commonly seen as the everyday milk carton, but is also used for other drinks, and liquids such as refill packs of fabric conditioner. Whilst these cartons tend to be quite difficult to open, they have found favour due to the fact that they tesselate very well.

The packages are usually manufactured from waxed card, although some applications require foil lining to resist bacterial ingress.

[[Category:Packaging]]
[[Category:Nets]]
[[Category:Cuboid Nets]]

Box with lip

2016-06-23T14:33:14Z

Phil: Created page with "<dtapollonius dwg="http://wiki.dtonline.org/images/1/1c/Lip.txt"></dtapollonius> center <div style="clear: both"></div> This package forms a simple carton wit..."

<dtapollonius dwg="http://wiki.dtonline.org/images/1/1c/Lip.txt"></dtapollonius>
[[File:Lip.gif|center]]
<div style="clear: both"></div>
This package forms a simple carton with a lip all around its top edge. Such cartons are often used for carrying fruit and vegetables, because the lip helps stop loose rounded objects from falling out.

Often the package will be seen with holes punched into the sides to allow air to get at the produce inside.

The package is usually stapled together.

[[Category:Packaging]]
[[Category:Nets]]
[[Category:Cuboid Nets]]

Lid and Base

2016-06-23T14:31:37Z

Phil: Created page with "<dtapollonius dwg="/images/e/e8/Lidbase.txt"></dtapollonius> center <div style="clear: both"></div> This package consists of two near-identical halves - t..."

<dtapollonius dwg="/images/e/e8/Lidbase.txt"></dtapollonius>
[[File:Lidbase.gif|center]]
<div style="clear: both"></div>
This package consists of two near-identical halves - the only differences being that one is slightly bigger than the other so that it can serve as a lid.

The package is usually glued or stapled into shape with the single tab. The base of the box interlocks quite rigidly without need for any additional fastening, but does not close well enough to contain very small objects (e.g. grains of sand).

[[Category:Packaging]]
[[Category:Nets]]
[[Category:Cuboid Nets]]