I designed an azimuth bearing for the Hadley telescope Hill mount based on a design by Pelf.
The bearing uses a PTFE tube to reduce friction and the assembly holds together when moving the telescope. Bolt holes have been lined up to match the mounting holes already included on the Hill mount.
You will need to cut the model to fit your print bed. The “All Parts” model has been cut to fit a 220 mm print bed.
I Printed in ABS with 3 walls and 20% infill.
Designed to use 10-24 hardware.
Assembly:
- Print the base and top ring. I printed each in quarters
- Sand the parts to get a smoother surface
- Glue and bolt half of the rings together to get two half circles
- If you print the base ring in quarters there are 2mm holes on the ends that are 5mm deep. You can stick a 10mm piece of filament into the holes to help align the ring during assembly
- Slide the top ring half circles over the base ring half circles so you have two half circle assemblies
- Insert the PTFE tube into the V-groove between the top and bottom of one of the half circles. You will need approximately 50-¾" long tube. Cut it a little short so it doesn't bunch up
- Insert filament into the PTFE tube to add support so it wont crush
- Insert the remaining PTFE tube into the second half circle assembly
- Feed the filament through the tube so it helps join the tube ends together
- Align, glue, and bolt the two half circle assemblies together
- Insert 10-24 nuts into the three slots and bolt the Hill mount on top. You may need to loosen the bolts holding the bottom triangle of the Hill mount together to allow small adjustments so the holes will line up
This is my first iteration and I look forward to suggestions and remixes.
@FergyMcFerguson has generously provided a 3MF file of all the cut parts to fit a 220 mm plate for the newer version of Prusa slicer
DontWorryAboutIt
