Hi mustang I,m building my own electric retracts for a 90" span model could you tell me what motors and gearboxes you used and where to source them.<div>
</div><div>I have built mine using precision rolled 5mm ACME lead screws but to keep costs down made my own lead srew nuts. I did this because I know a couple of modellers that have fitted commercial units and suffered lock up or lock down which I think is due to them being fitted with standard screw threads, which is of course what  screw threads are supposed to do when they are tightened.</div><div>
</div><div>Thanks</div>