Over-the-top geneva wheel间歇传动机械3D打印图纸 STL格式

文件大小：4.48MB

简介： STL格式。

This is an over-the-top geneva wheel model. Inspired by a simulation example provided in SimLab Composer Mechanical V6.1
Designed in Moment of Inspiration (MOI), simulated in SimLab Composer Mechanical and printed mostly in PLA on an Ultimaker Original.
A few smaller parts printed in ABS on a Robox.
This is not an easy print. The largest part, the Frame, is difficult to keep flat even in PLA so the use of a brim is strongly recommended. With a brim the Frame just fits on the Ultimaker after a bit of fiddling to find the right angle to set it at.

Notes:

I had difficulty making the larger pieces. I believe that mostly this was due to a worn extruder drive wheel, but it has made it a little difficult to make printing recommendations. However I'd suggest using 1.2mm wall sections and 60% fill on the Frame to ensure adequate strength in the connection of the taller posts to the base of the frame. Elsewhere I'd suggest 1.2mm walls and 30-40% fill. Normally I use 210C for PLA but because of the extrusion difficulties I was having I increased this to 220C. I only made the Keeper Old and the KeeperTops on the Robox in ABS. Default fine settings. The design evolved and the assembly that I made is NOT to the latest design. To make the same as I did use Frame Old and Keeper Old and make two Keeper Tops (which are not required with the later design). The reason that I've not made a Frame New is that my Ultimaker is out of action awaiting a new Hagen Extruder Drive Wheel. The difference between the two designs in that in the Old design the Keeper that carries the drive parts is connected to the frame via the press fit Keeper Tops and thus is not easily removable. The later design uses screws to connect those parts. All screws are 3mm x 10mm long Stainless Steel Button Head Cap Screws.