11.5 TPI

[Ischgl99]

From the manual on PMs website.

Double check your own manual.

That’s a typo, the change gears are M1.25.

 

[Ken226]

That’s a typo, the change gears are M1.25.

I thought 2.25 sounded a bit, off.

So, it's a M1.25, 20 degree PA 46 teeth. That should be everything needed to sketch and model the teeth.

OD Reference: 60.0000 mm 2.3622 in
Pitch Diameter: 57.5000 mm 2.2638 in
Base Circle: 54.0323 mm 2.1273 in
Root Diameter: 54.3750 mm 2.1407 in

Addendum: 1.2500 mm 0.0492 in
Dedendum: 1.5625 mm 0.0615 in
Working Depth: 2.5000 mm 0.0984 in
Whole Depth: 2.8125 mm 0.1107 in
Circular Pitch: 3.9270 mm 0.1546 in



All thats lacking is the info on the thickness, axle diameter and key size. Once i have that, ill create a model and upload the .stl here for the OP, and anyone else.

 

[Just for fun]

Oh Man, Thanks guys. All this gear stuff is a little mind boggling. Something new to learn every day.

Thickness is 10 mm
Axle diameter is 18 mm (I measured the gear)
Keyway 5 mm

I'll go measure the shaft just to make sure.

 

[Ken226]

Oh Man, Thanks guys. All this gear stuff is a little mind boggling. Something new to learn every day.

Thickness is 10 mm
Axle diameter is 18 mm (I measured the gear)
Keyway 5 mm

I'll go measure the shaft just to make sure.

3d printers tend to print holes about 3% undersize and external features about 3% oversize. I'll adjust the dimensions of the model accordingly, unless you'd like otherwise.

Also, it's easy to adjust the tooth count while doing this, so if you'd like models with different numbers of teeth, let me know and I'll post them up as well.

 

[Just for fun]

Thanks Ken, Is it a problem to do both incase I want to have a metal one made?

I haven't asked my friend with the 3D printer yet, but I can't see where that would be a problem. What would be the best materal to use for a gear like that?

 

[Ken226]

Thanks Ken, Is it a problem to do both incase I want to have a metal one made?

I haven't asked my friend with the 3D printer yet, but I can't see where that would be a problem. What would be the best materal to use for a gear like that?

It's no problem, but I need to know the tooth count. Remember, 23t is smaller than the keyway diameter.

 

[Ken226]

Here is the .stl file. I scaled the outside down and the hole up, about .15mm to acct for the amount most 3d printers tend print over/under sized.

 

[Just for fun]

It's no problem, but I need to know the tooth count. Remember, 23t is smaller than the keyway diameter.

46T is what I'm looking for.

 

[Just for fun]

Here is the .stl file. I scaled the outside down and the hole up, about .15mm to acct for the amount most 3d printers tend print over/under sized.

View attachment 420470

Very cool.... Thank You

 

[Ken226]

Very cool.... Thank You

If you able to print one and make sure it fits, I'll keep the part model file in case you need changes, or a different tooth count.