CuttingHelicalGear.mpg

This is a demo of my home made helical gear cutting fixture. It's cutting helical gear that has a diametral pitch of 40, 6 teeth, and a helix angle of 80 degrees (from the axis). The spindle holding the gear blank has a triangular shaped, aluminum template that pulls the spindle to the right as it turns. There is also an indexing wheel with 24 holes that allow me to index 2, 4, 6, 8, 12,or 24 teeth. in the gear blank. I can also adjust the helix angle to anything between 1 and 89 degrees. The gear pictured in this demo which has 6 teeth will drive a smaller diameter gear with 12 teeth at half the driving gear's speed. The helix angle of the driven gear will be 10 degrees and the gears will spin at 90 degrees to each other.

Category:

Science & Technology

Tags:

• helix
• helical
• gear
• hobb
• cutting
• fixture
• lathe
• milling

[christas69]

Hi

Just wondering in your helical gear cutting jig / fixture that I have found=  from you elswhere on the net what cutters do you use ?

Do you still use the numbered cutter that goes with the number of teeth you= are cutting eg #7 cutter to cut 14 to 16 teeth ?

I need to make 3 helical gear for the distributor drive for a Hodgson Radia= l engine (Ageless Engines) Thanks for your help Christas

[cffellows]

@christas69 - Sending you a private message...

[poorcncoper8or]

WD-40 is a good cutting fluid for aluminum. Also I would like to see to other side of the fixture.