Made a gear cutter arbor

[Janderso]

I recently picked up a set of the 8 gear cutters for the 14.5 degree pitch.
I did not have an arbor for the mill to hold them.
A quick project.
I may need a longer tool. We will cross that bridge when we get there.
I have the NT30 spindle. No R8. You can buy R8 gear cutter arbors all day long.

 

[Brento]

Nice. How much did that set cost you?

 

[MtnBiker]

That R8 thing. Simultaneously great for plentiful options and ultimately not that great of a design. I wish Bridgeport had gone with a more robust attachment all those years ago.

 

[Winegrower]

I’ve been happy with how easy it is to make arbors for saws and various cutters. And by turning everything in one setup, the runout is almost zero.

I bought a set of modulus 1.5 for around $80. It’s very straightforward to cut modulus gears, but one generally needs a dividing head.

 

[cathead]

What are you planning to make with the 20DP cutters? Also curious if you are going to use
the Gorton RT to make the gears. I have made a lot of gears using my RT and it works great.

 

[Janderso]

Nice. How much did that set cost you?

Hmm, I think it was about $80
This is the 20 DP
Small little guys. 7/8” ID

 

[Brento]

I am always looking for gear cutters bc i just love the idea of cutting gears.

 

[WobblyHand]

I recently picked up a set of the 8 gear cutters for the 14.5 degree pitch.
I did not have an arbor for the mill to hold them.
A quick project.
I may need a longer tool. We will cross that bridge when we get there.
I have the NT30 spindle. No R8. You can buy R8 gear cutter arbors all day long.

Nice work Jeff.

Interesting that individuals have some things that are easy for them and just do them, but others would hesitate. For me, having flubbed up an arbor, I'd hesitate making this. Guess we all come from different backgrounds. I'm just barely developing machining talents, whereas it seems you can just do things like this as a quick project.

Keep at it, you are an inspiration.

 

[Janderso]

My first gear.
I learned a bunch!
I need a more substantial holding fixture for the gear.
It moved about hakf way through.
Also, i second guessed myself. Diameter over pitch is my depth. I looked at the wrong figure in my notes and cut too deep.
Next time it will be perfect.

 

[Just for fun]

That looks really good Jeff. Does the gear go to anything?