Thread Cutting Jig - Revision history

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2016-02-07T19:44:30Z

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← Older revision		Revision as of 19:44, 7 February 2016
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	A carbide tipped suitably shaped cutter ''(i.e. normally ‘V’ shaped)'' can be fitted into a '''Router''' or '''Laminate Trimmer''' and '''Jig''' used to cut an external screwthread. In operation, it is similar to the action of a '''[[Thread Box]]''' but with a rotating cutter instead of the single blade.		A carbide tipped suitably shaped cutter ''(i.e. normally ‘V’ shaped)'' can be fitted into a '''[[Router]]''' or '''Laminate Trimmer''' and '''[[Jig]]''' used to cut an external screwthread. In operation, it is similar to the action of a '''[[Thread Box]]''' but with a rotating cutter instead of the single blade.


	[[File:RouterJig.png\|300px\|right]]		[[File:RouterJig.png\|300px\|right]]
	'''Jigs''' are available which comprise a piece of suitable material ''(e.g. plastics or aluminium)'' into which the thread required has been cut ''(e.g. using a large '''Tap''' or by cutting with a screw-cutting '''[[Centre Lathe]]''')''. The threaded hole is '''[[Counterboring\|Counterbored]]''' to, say, half the width of the '''Jig''' and provision made for the '''Router''' cutter to be lowered radially into the centre and adjusted such that exactly the right amount of cutter showing on the inside of the bore can be determined by trial and error.		'''Jigs''' are available which comprise a piece of suitable material ''(e.g. plastics or aluminium)'' into which the thread required has been cut ''(e.g. using a large '''Tap''' or by cutting with a screw-cutting '''[[Centre Lathe]]''')''. The threaded hole is '''[[Counterboring\|Counterbored]]''' to, say, half the width of the '''[[Jig]]''' and provision made for the '''[[Router]]''' cutter to be lowered radially into the centre and adjusted such that exactly the right amount of cutter showing on the inside of the bore can be determined by trial and error.


	Dowel stock is simply fed into the '''Counterbored''' end of the '''Jig''' and slowly turned clockwise ''(if a right-handed screw thread)''. The cutter starts the thread which is then picked up by the pre-cut thread beyond it in the bore, and once engaged, the pre-cut thread continues to pull the dowel stock through the '''Jig''' as turning continues at a steady rate ''(e.g. approximately one revolution per second normally)''.		Dowel stock is simply fed into the '''[[Counterboring\|Counterbored]]''' end of the '''[[Jig]]''' and slowly turned clockwise ''(if a right-handed screw thread)''. The cutter starts the thread which is then picked up by the pre-cut thread beyond it in the bore, and once engaged, the pre-cut thread continues to pull the dowel stock through the '''[[Jig]]''' as turning continues at a steady rate ''(e.g. approximately one revolution per second normally)''.

DT Online at 08:05, 15 December 2015

2015-12-15T08:05:21Z

← Older revision		Revision as of 08:05, 15 December 2015
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	[[File:RouterJig.png\|300px\|right]]		[[File:RouterJig.png\|300px\|right]]
	'''Jigs''' are available which comprise a piece of suitable material ''(e.g. plastics or aluminium)'' into which the thread required has been cut ''(e.g. using a large '''Tap''' or by cutting with a screw-cutting '''[[Centre Lathe]]''')''. The threaded hole is '''[[Counterbored]]''' to, say, half the width of the '''Jig''' and provision made for the '''Router''' cutter to be lowered radially into the centre and adjusted such that exactly the right amount of cutter showing on the inside of the bore can be determined by trial and error.		'''Jigs''' are available which comprise a piece of suitable material ''(e.g. plastics or aluminium)'' into which the thread required has been cut ''(e.g. using a large '''Tap''' or by cutting with a screw-cutting '''[[Centre Lathe]]''')''. The threaded hole is '''[[Counterboring\|Counterbored]]''' to, say, half the width of the '''Jig''' and provision made for the '''Router''' cutter to be lowered radially into the centre and adjusted such that exactly the right amount of cutter showing on the inside of the bore can be determined by trial and error.

DT Online: Created Article

2015-11-15T14:37:07Z

Created Article

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A carbide tipped suitably shaped cutter ''(i.e. normally ‘V’ shaped)'' can be fitted into a '''Router''' or '''Laminate Trimmer''' and '''Jig''' used to cut an external screwthread. In operation, it is similar to the action of a '''[[Thread Box]]''' but with a rotating cutter instead of the single blade.

[[File:RouterJig.png|300px|right]]
'''Jigs''' are available which comprise a piece of suitable material ''(e.g. plastics or aluminium)'' into which the thread required has been cut ''(e.g. using a large '''Tap''' or by cutting with a screw-cutting '''[[Centre Lathe]]''')''. The threaded hole is '''[[Counterbored]]''' to, say, half the width of the '''Jig''' and provision made for the '''Router''' cutter to be lowered radially into the centre and adjusted such that exactly the right amount of cutter showing on the inside of the bore can be determined by trial and error.

Dowel stock is simply fed into the '''Counterbored''' end of the '''Jig''' and slowly turned clockwise ''(if a right-handed screw thread)''. The cutter starts the thread which is then picked up by the pre-cut thread beyond it in the bore, and once engaged, the pre-cut thread continues to pull the dowel stock through the '''Jig''' as turning continues at a steady rate ''(e.g. approximately one revolution per second normally)''.

'''Taps''' are used to cut the internal thread.

[[Category:Threading Tools]]