http://wiki.dtonline.org/index.php?action=history&feed=atom&title=Scriber Scriber - Revision history 2026-05-05T12:55:07Z Revision history for this page on the wiki MediaWiki 1.43.8 http://wiki.dtonline.org/index.php?title=Scriber&diff=7950&oldid=prev DT Online: Created article 2016-09-09T16:31:25Z <p>Created article</p> <p><b>New page</b></p><div>[[File:Scriber.png|300px|right]]<br /> __TOC__<br /> <br /> <br /> =====Description=====<br /> <br /> [http://wiki.dtonline.org/index.php?title=File:Scriber.png &#039;&#039;&#039;Scribers&#039;&#039;&#039;] are made from a rod of [https://en.wikipedia.org/wiki/Hardened_steel &#039;&#039;&#039;Hardened&#039;&#039;&#039;] and [https://en.wikipedia.org/wiki/Tempering_%28metallurgy%29 &#039;&#039;&#039;Tempered&#039;&#039;&#039;] [https://en.wikipedia.org/wiki/Tool_steel &#039;&#039;&#039;Tool Steel&#039;&#039;&#039;] which has been ground to a fine point at one or both ends. They are used to mark accurate lines - usually when working in metal.<br /> <br /> <br /> =====Features and Applications=====<br /> <br /> Scribers are sharpened to a 30 degree point by holding them &#039;&#039;&#039;[[Tangents and Normals|Tangentially]]&#039;&#039;&#039; to a &#039;&#039;&#039;[[Tool Grinder]]&#039;&#039;&#039; and rotating them. This tends to create grinding marks which run along the point and strengthen it rather than weakening it by going across. <br /> ----<br /> &lt;span style=&quot;color: green&quot;&gt;&#039;&#039;&#039;Note:&#039;&#039;&#039;<br /> When scribing lines for bending or folding sheet metal &#039;&#039;(or plastics)&#039;&#039; always mark on the surface that will become the inside of the bend. In this way, &#039;&#039;&#039;[[Compression|Compressive Forces]]&#039;&#039;&#039; will close up the scribed line during bending, whereas if on the outside, &#039;&#039;&#039;[[Tension|Tensile Forces]]&#039;&#039;&#039; would open it up and may cause the material to tear or fracture.<br /> &lt;/span&gt;<br /> ----<br /> &lt;span style=&quot;color: green&quot;&gt;&#039;&#039;&#039;Note:&#039;&#039;&#039;<br /> To make scribed lines stand out more, bright steel can be coated with [https://en.wikipedia.org/wiki/Marking_blue &#039;&#039;&#039;Marking Blue&#039;&#039;&#039;] &#039;&#039;(or a felt tipped pen)&#039;&#039; whilst black steel or rusty metal can first be rubbed with chalk.<br /> &lt;/span&gt;<br /> ----<br /> <br /> {{Marking Out Buyers Guide}}<br /> <br /> <br /> <br /> [[Category:Marking and Measuring Tools]]</div> DT Online