Combining my experiments with #telescopemaking and #ai, I used Claude Code to help me make a small application that can output DXF patterns for all the major flat/cut from plywood items to make a basic Dobsonian telescope. It will automatically layout finger joints for my CNC, which is kind of a pain to do by hand with OnShape or other cad tools. I haven't tested it for real yet, but I will probably use it to make the rocker box for my 6" revival project.
Some more #onshape cad, the rough model for the next few bits of a Dobsonian telescope project I'm working on. No details yet, just mucking around with how it looks. Trying to use 1/2" ply rather than 3/4" ply, and will add some gussets to reinforce bits. #telescopemaking
Spent a couple of hours trying to understand how to position 3 supports in a mirror cell optimally. #telescopemaking Didn't understand PLOP's suggestion, so I had Claude Code help me grind out a similar calculation in Python, and now I think I understand it much better. The basic idea is that variations at the edges are more harmful, so they should be minimized. I now reproduce PLOPs suggestions.
https://github.com/brainwagon/blip
I worked on roughly reproducing the 6" mirror cell from my first telescope as a 3D print, but as I work on it, I can't help but realize just how mediocre the design is. I think I'll start from scratch. #telescopemaking #3dprinting
First prototype of a diagonal holder/spider that can be easily/cheaply 3D printed. Vanes will be made out of 1/16" aluminum strip. My idea is to be able to supply these for a pittance to our telescope making workshop. I have at least three improvements to make before I give it to our first guinea pig. #telescopemaking
It's cloudy tonight, so I can't test this for real under the stars, but I have some data I acquired from a couple of nights ago. The tetra3 plate solver is really awesome and fast: so much so the other processing is the bottleneck. Stars are currently labeled with the Hipparcos ID numbers, but a little more work and I'll have more human names for them. Nifty. #astronomy #astrophotography #telescopemaking
Prototype computerized finder scope is more or less complete/functional, on a baby camera tripod. It has a 3D printed Vixen style dovetail, which should make it easy to mount on a telescope when I get it working better. If it is clear tonight, I am going to use it to grab some additional test frames tonight, and work on focusing. #3dprinting #telescopemaking
Prototype #astronomy / #telescopemaking project: a basic Raspberry Pi 5 based camera, with an IMX296 based camera and a 25mm lens. It can acquire images which can be used with a plate solver, and figure out what stars are visible in the field. The acquisition software is something I tinkered together, ultimately to use the astrometry.net plate solver (I think, unless I find something better).
For a couple of weeks, I've been wondering where my copy of Texereau was, and whether I even owned a copy of "The Dobsonian Telescope" by Kriege and Berry. Today, while looking for something else, I found both, and now they are with my other #telescopemaking books.
Pondering using 2020 aluminum extrusion for struts on my 12.5" telescope project. Might be cheaper than either 1" tubing or 1" box section, and probably easier to work with.
#telescopemaking