Cycloid Reducer.

[ArtF]

Kirk:

  Each f the components, when generated, are grouped as to function. So, if you select just the
rotor for example, you shoudl be able to select "extrude" in the tools and extrude just the rotor
to an stl.

I havent tested there at all, Im still finalizing that module... Let me know how it works out.

Art

[Mooselake]

34 minutes, less if it fails, and I'll have at least the sun and planet (forgot the cycloidal reducer part names).  The pins show up in PrusaSlic3r but not in Repetier-Host so I'll need to look into that one.  Is there only 3 parts?

Kirk

[Mooselake]

With some random giggling I came up with this page which among other things included the attached picture that gives names (at least their names) for the parts.

The pic shows a high speed shaft that looks a lot like a cage gear (although iirc the stl has bad pins), just leaving the low speed shaft and the way it connects to the ring gear.  Do you have any plans to add something like these, or the parts in Tweakie's gif?

The cycloidal disk and ring gear printed OK, although I really should take the time to properly get this new ender 3 pro printer properly set up, particularly as my regular chair sitting time is slowly increasing.  Black 6mm pins are printing as I type this, will either post a photo or pretend it never happened depending on the results

Kirk

[Mooselake]

My camera thought it was a face

The pins are oversize, 6.2 instead of 6.0mm so it's hard to turn, but turned out pretty decent.

Kirk

[ArtF]

Kirk:

  If you include the bearing ring, it becomes a differential reducer, hold the ring and the center disk turns, hold the
centering disk and the ring turns..

  I am designing a clock to use cycloidals so Im hoping to hold the video until I can show at least one stage
operating. The shaft is usually the hard thing, but Im using small lazy susan bearings that allow you to simply
glue the bearing to the wood offset from center. Makes one easier to make out of wood.

Art

[tweakie]

Well, I have made a start  ;D

I tried laser cutting but the dimensional accuracy is just not there so resorted to milling. Once I get a few parts machined and assembled I will take a few more pics.

Tweakie.

[ArtF]

Tweaky:

  Dimension wise I was of the opinion one should enter a pin diameter slightly larger than that they intend
to use. The drawings are done with zero allowance. I expect a backlash is required to allow for at least
some tolerance.  Other than that they should ( math wise anyway ) work out well.

Love to see your end product..

Art

[Mooselake]

How did you make the back plate and eccentric inserts?

Kirk

[tweakie]

Hi Kirk,

The stator had the OD added in Vectric with the pin positions from the Vexx DXF.
The cam was produced in Vectric using the offset displayed in Vexx.

Hi Art,

I am not yet sure of the best way to achieve the running clearances - a system I used from a previous project was to lie about the tool diameter when creating the path but it needs a few practice runs (trial and error) - I think I have plenty of engraving laminate in stock so that is what I am trying  ;D

Tweakie.

[ArtF]

Hi Tweaky:

  When designing it, say you want to use 5mm outside pins, declare them as 5.25mm pins. Then
cut to profile for the toolpath. You should get a .25 clearance. Though thats basically  the same
as you just defined only from the tool side.
  I use about that much for my laser..

Art