I hope it will work fine, as it is not cheap indeed !

I'll take the old head.

Harmonic Drive co. actually sells both cycloidal drives and planetary gearboxes under the same name. I picked up two used planetary gearboxes before I clicked to this little twist. Planetary gearboxes will work well for this application but keep in mind that there is some noticable backlash on the input shaft, so compensation via software is needed. The output shaft is characterized as "low backlash" and is almost immeasurable from my experience.

Thank you for info. Mach4 has some backlash compensation I am hoping it will work for this.

nice project, i vould do the same but i'm scared about backlash using normal planetary reduction drive.. and the strain wave generator gearbox is too expensive..

Thank you.

Coming soon

Welcome!

Thank you Buddy

Glad you enjoyed it

@@advanceair In the future do you think you'll try to make a 5th axis trunnion?

I am planing on .500 steel. Hope that is enough

@@advanceair ah, it might be just fine i guess. But if i was to build it i would use 20-25mm as back plate ( 0.8-1"). All of the cutting forces have to pass through it, so better safe then sorry. And of course good quality steel, the best option would be cast iron, but if that isn't suitable or out of price i would go with machine or tool steel. Or did you already think of this?

I would like cast iron but can’t get it easy. I will get tool steel or stress less steel. I do have 1” aluminum but I don’t think it’s good Option.

@@advanceair with your options i would go with the toolsteel. Cast iron is relatively simply obtained, but you'd need to have connections. Stress less steel doesn't help that much because machines put new stresses in the material, but i don't think that is a issue. Some good quality steel (in Europe S355), or tool steel will do the job just fine (in Europe c20-c45 or 42CrMo4). But I am guessing you already have something in mind?

Thank you, I am always planing

I am lucky to have company called metal supermarkets which sell to public in our town

Thank you ! It’s is ISO30, same as BT30 but without dogs. So far had no problem with slipping

Not for this one. Maybe next machine

posted link in description

@@advanceair Thanks a lot

Hi Patrick, it has built in Coupling

I have link on CNC build for it

AliExpress

base on what I can measure it less than .001"

Haha. It out Canadian great box tree. 😂

I got them from my local metal shop. We have one locally

Thank you Andrew, hope backlash compensation in Mach4 helps a bit

Check description please

@@advanceair Thanks :)

It’s just nema 34 closed loop

$500

You mean program? It’s fusion360

@@advanceair , Yes. CAD stands for " Computer Aided Design ". Grateful for the information about the program.

You are welcome

Wow great catch. One of the holes is different, first I thought they forgot to tap but than when I measured it was larger diameter, I assume is for some kind of pin or something

To design, Fusion360

@@advanceair and that program has for properties of matter and weight of the material ...

Yes it has simulations

Thank you for correction , dont know how i got wrong term stuck in my head. will pin comment on top