Linear Gearbox Polar Wedge

Polar Wedge with linear gearbox

This is a little but solid polar wedge for astrophotography.

I designed 2 versions of the Base, one with a 1/4" hole to mount it on a arca-swiss plate and one with a Arca-Swiss Base but the Arca-Swiss Base is much more stable. You can mount it directly on a normal tripod with Arca-Swiss.

The PolarWedge can rotate about +/- 60°

The Setup, you can see on the photos, weight is 4292 gramms and it is not a problem for the PolarWedge.

You can print all parts without supports.

Hint:

Print the Rack on the side and the knob on the small diameter, it works!

Parts, you need to assemble:

• 1x M8x45mm Hex Screw VA
• 1x Locking lever M8
• 1x M4x60mm Threaded Rod VA
• 1x M4 Hex Nut VA
• 1x M4 Hex Nut witch cap VA
• 1-2x 1/4" Nut VA - one for the wedge, ode for the base without Arca-Swiss.
• 1x M4 Insert max. 10mm long for the Rack
• 1 drop of superglue for a nut on the M4 threaded rod
• 1 drop of Loctite 243 for the nut with cap in the knob

In the pictures you can see a complete setup with:

StarTracker: https://www.thingiverse.com/thing:4889007

The tracker has tuning parts: https://www.printables.com/de/model/184153-tuning-parts-with-bearings-for-heavy-duty-planetar

L-Mount: https://www.printables.com/de/model/184152-l-mount-for-heavy-duty-planetary-astro-tracker

Caps for Polarscope: https://www.printables.com/de/model/184149-caps-and-tool-for-polarscope

Notes:

No Supports needed, print it with 100% infill for maximum stability.
I printed it with Carbon PETG