[rogerg (Roger)]

Originally Posted by alistairsam

nice and simple roger.

there are heaps of pwm motor speed controllers available on ebay as well as other electronic suppliers. this is one I found.
http://www.ebay.com.au/itm/HLDR4-PWM...ht_3419wt_1139

this one is bi-directional
http://www.oceancontrols.com.au/KIT-166.html

Thanks for those, I think I will get one to try it. Quite affordable.

Originally Posted by alistairsam

as for the wheels, you could use two hole saws of two diameters to drill out two cores from a ply piece. just glue them together once aligned. very simple source of wheels.
the hole saw kits are available in bunnings for 15 odd, so use say a 20mm first and take out the core, then use a 34mm and take out the core. align the two and use liquid nails. that will give you a wheel with an inner flange. just use the non threaded part of an m6 bolt as the wheel axle.

Brilliant idea, thanks. I already have suitable hole saws and wood so will do this if I find I have problems with the current wheels not gripping the track securely enough.

Originally Posted by alistairsam

secondly, if you fit a second motor under the camera and manage to get it very slow, you could pan as well.

Yes... have thought of this.. perhaps revision C when I rebuild it again for more functionality

Thanks!