Equitorial Mount Mk2 by crucial97

Last crawled date: 3 years ago

This is my second major revision of my 3d printable equatorial mount.
Even though I personally casted all of these parts in aluminum for high accuracy setups, you can most likely get away with high infill/high strength plastic parts. I modeled it off of some details on >$5000 equitorial mounts, such as it using 1.5" diameter steel shafts as the main axis of rotation.
I have included the step files for all of the parts for you to make tweaks to better suit your needs.
You don't have to use 1.5" steel shafts that weigh 40lbs a piece for your axis. You can change the holes to use common 3/4" shafts if you wanted to.
I think of this as more as a starting point to your own project rather than a complete design for everybody.
Once I finalize my stepper motor mounts and gearing I will upload those as well.
Hopefully I can find the time to drive it with a raspberry pi with http://indilib.org/
Things able to be printed or casted
1x DecArm.stl
1x RA Axis.stl
2x Adjusting Arms.stl
Things needed to be cut from sheet stock (I used 1/4" Aluminum Plate)
1x .25 alum base
Things to buy
1x Shaft 1.5"x18"
1x Shaft 1.5"x12"
2x Shaft 1.5"x3"
~10x Oil embedded sleeve bushing 1.5"ID 1.75"OD 0.5"L
Epoxy to glue in bushings
Bolts to hold the RA Axis to the Adjusting Arms with fender washers
Bolts to mount the Adjusting Arms to the Base
Tap for the bolts (I used 5/16)
Shaft collars for your shafts
Things to find/design yourself
1x Shaft to Telescope Adapter
Just my recommendation: If you will be trying a fully 3d printed version try to find a shaft that is very lightweight, you may also need to find a weight that you can use to balance the telescope on it. for instance you could probably get a lightweight conduit that fits into a similar bushing
I will be making an assembly guide soon possibly a video, we'll see