RE: converting air to electric retracts.
Hi Jesus looks great well done.
I haven't converted anything I just made the whole lot. I'll try to get some pics and post them.
What motors are you using. I,m using some of the Pololu motors and gearboxs can't rememember what ratios though.
As I said I am using acme lead screws as these aren't to expensive I could have cut my own screw threads as you have I just felt proper lead screws would be more reliable. The problem is the nuts for these are really expensive so I made my own nuts from acetal and it took just a couple of minutes each to form the acme thread. A breeze really.
I do have a couple of friends that have fitted commercial units with standard threads and they say on occasion when they hit the end stops they do some times get jammed. So I thought I'd try to avoid that from the word go. And they work great. I have intentionally driven them into the end stops to the point of almost destroying the motor and gearbox as a test and they have never yet got stuck.
Windy