Printed gear tooth templates

[Rob McSweeneyParticipant @robmcsweeney81205]

I was watching a YouTube video recently, where the contributor ground a gear cutting flycutter by cutting out a printed profile of the gear tooth and sticking it to the HSS blank. Anyone know where they got the printout from?

[Rob McSweeneyParticipant @robmcsweeney81205]

[Pete RimmerParticipant @peterimmer30576]

Probably GearDXF. Will produce a cad drawing of any supported gear you specify which you can then open and print out.

[JasonBModerator @jasonb]

I've done it by printing out from a CAD drawing. Fusion 360 will do it for free rather than pay for Gear DXF

Edited By JasonB on 07/03/2023 20:26:16

[Pete RimmerParticipant @peterimmer30576]

GearDXF is free software Jason.

https://www.forestmoon.com/Software/GearDXF/

I note that the newest version now outputs .STL files.

[BazyleParticipant @bazyle]

In the end they are normally approximated by parts of circles. Therefore you could draw one BIG and reduce it in a photocopier, or by scanning and printing after using your photo programme to shrink it.

[Paul LousickParticipant @paullousick59116]

Another online site for designing spur gears, 3D printing parts and other engineering services is .emachineshop.com (**LINK**) There is a large library of pre-designed parts.

Gears can be designed in either inches or mm and exported as dxf or stl format

[JasonBModerator @jasonb]

Peter, I was thinking of Gearotec, not GearDXF

[Rob McSweeneyParticipant @robmcsweeney81205]

Thank you gentlemen, l will have a play and see how l get on.

[JasonBModerator @jasonb]

Do you have a link to the video, were there printed on paper or 3D printed.

As I said I have done it and I used paper, don't have a photo for gears but this is one for a form tool, printed 1:1 and cut out a piece, laid that on some gauge plate and used a sharpie to mark where to remove metal. remaining bit of paper can be used to offer the tool upto as you get close to shape..

And an internal gear where the cutter was shaped using teh same method

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