Cutting Parallel Depth Bevel Gears at Home

Sorry, I did not get all the maching for this one on video.
How to cut bevel gears with a milling machine and home made fly cutter.

Category:

Howto & Style

Tags:

• Mill
• milling
• lathe
• model
• engineer
• myford
• Ml10
• Raglan
• metalwork

[myfordboy]

The dimentions for making the form tool to make the gear cutter are taken from Gears and Gear cutting by Ivan law. The size of the tool to make the cutter depends on the number of teeth and DP of the gear you want to cut and needs to be calculated from the formula given. If you want to cut bevel gears then the size and depth of cuts need to be calculated from the bevel gear section of the book.

[people992003]

do you mind giving me the blue prints for this???

[myfordboy]

@people992003 What blueprint are you asking for?

[rjmars1]

good work where did you learn your trade at.

I took mine at the wayne tool company back in the 70s

[myfordboy]

@rjmars1 I am self taught. Elecrical work is my trade.

[people992003]

@myfordboy for the tool you made and the dementions on the part you were making

[J800613]

Excellent!

[astriknon]

Wow, very nice job for a cutter you made yourself, I love your work.

[1951split]

WOW... I've watched a few of your video's, and with every other video I see my jaw drops further and further to the floor...

Your craftsmanship and ingenuity are truly amazing and inspiring...

Thank you so much for these video's...

[2008koss]

@devers6 he placed the cutter eccentrically, with the cutting point at the top of the eccentric (largest diameter). By installing it this way the back of the cutting edge of the cutter will always be lower than the tip, therefore it will never rub the cut surface.

[myfordboy]

@TinkeringJohn sorry my last reply and the video caption is wrong. . Work is centred with tool with Z. Y is adjusted until tool just touches. Work is moved away in X direction. Then the 0.072 depth of cut is put on in Y. Cut is made with X after lowering the work the calculated amount.

The finished teeth have a parallel depth but are tapered from outside to inside. I hacve added a correction to the video, thanks for pointing this out.

[TinkeringJohn]

@myfordboy Just to clarify then. When you set the depth of cut at .072 as shown on the digital readout, you are actually moving the Y axis and not the Z axis as it states in the video? Also is the purpose of offsetting the cutter is to give the gear teeth a taper? Since you made the cutter for this gear it doesn't seem that it is to widen the space between the teeth otherwise you would have made the cutter wider. Thanks for sharing your knowledge!!!