Hi everybody,
I read this forum with great interest and I decided to recreate Walters great Turntable solution for my master thesis project, where I had to build an setup where I can scan 3D Objects with low-cost and as highly automatically as possible. Very soon the David 3D Scanner became the prefered solution and with this great community I was able to create a turntable in addition to the SLS2 scanner package.
A very important factor was the feature of taking controll over the software by clicking a button on the turntable that was added by Walter in his latest version of LEO2. Whit the help of his perfect circuit diagram and an unused circuit board for the pololu board I was able to build the hardware in 2 days. The software is as magnificent as the circuit diagram and it worked perfectly from the beginning. I changed the setup to an solution where the turntable and controlling is in one box and for that I used the old shell of a pocket record player. I planed to use some other parts of the record player e.g. the table or the engine but unfortunatlly the parts were useless for the turntable. After setting everything up I played a bit along with the rotating speed and the numbers of steps and I found the best settings for me so that I have to rewrite the arduino code a bit but that is no sorcery and absolutly doable.
In addition I search for a solution to keep small and also bigger objects with complicated forms on the turntable and so I created a stand with a clamp that could be placed on the turntable. The surface of the turntable is plastered with very rough sandpaper for the benefits of more grip and less slipping by the objects. Last but not least I had a gorillapod tripod at home and added this one to the setup so I am able to bring the flexible arms in position and place everything on it in the wished angle. Maybe that will help somebody for his own project and if somebody came along with other/better solutions for clamping/positioning please let us know and post it here.
So long, I add some pictures of the setup beneath but the credit belongs to WalterMo how shared this awesome solution for everybody to see and recreate. Keep posting and sharing your fantastical ideas.
Big thanks again to Walter who started this whole conversation!
Cheers