Changing motors

[knightrous]

Forget the Astro flights when you can go Team Delta Dewalt kits More speed then the Astros, two selectable gear ratios and cheaper

The scooter motors are good if your on a small budget and need something reliable. They might not be the best, but they are sturdy and take abuse like its addictive

[psycho_fling]

by the way these might be going into psycho fling
not a new one!

cheers alex

[psycho_fling]

could you give me some links to the parts you speechof geoff?

cheers alex

[woody]

http://www.robotmarketplace.com/store_tw_gearboxes.htmlhttp://www.robotmarketplace.com/store_tw_gearboxes.html

[grant_ploughbot]

remember thats only the gearbox, motors are from astroflight.
http://www.astroflight.com/store/store-type-tem.html?item=products:af-940&sid=0001Bjgg5BrXX84ryg5m3H1http://www.astroflight.com/store/sto...:af-940&sid=00 01Bjgg5BrXX84ryg5m3H1
Im currently making some new gearboxes for these motors which are lighter and have a 15:1 ratio to give a little more control at 24v. My first proper prototype should be running at XFM next weekend if i get the new chassis made intime.

[antrock101]

just out of intrest does aqnyone sell gold motor setups with linkage~?

I made some myself a while ago, a one off set though. Sold them a few months ago.

I use some 5mm ali for the sides. Had a few brackets front and rear. A 5:1 ratio using 6mm sprockets and chain from technobots with a steel shaft running through some blue wheels.

Very easy to make with a jigsaw, a drill and a bit of time.

Total cost including motors was around £110 for the two. Not too bad for a featherweight.

[psycho_fling]

i think due to the lack of funds (you people have expensive taste) ill go down the 18volt motor route

does anyone know the speed i will get out of these and, do the xbnotz mounts fit 18v aswell as the 12v?

cheers alex

[RogueTwoRobots]

Im not 100% sure on this but, assuming the ratio of the gearbox is the same, then an 18V drill motor on 18V will give the same speed as a 12V drill motor on 12V, (or a 9.6V drill on 9.6V and so on) the only difference being that the 18V motor has more power therefore youll get a greater output torque. (something I am only realising the need for now after running four 9.6V drills and not really being able to push another feather)

This may differ however if the advertised RPM of the 18V drill before it becomes roboticised (i.e. when its still living in happy drill land) is higher than the advertised RPM of a 12V (or other voltage) drill.

Can anyone confirm/clarify what Ive just said - Im not entirely sure of it but I think its right.

And provided the 18V motor doesnt differ too much from the 12V motor in terms of physical size (mainly diameter of motor/gearbox top bit) then it should still fit the Xbotz mounts no problem

(Message edited by K_C_R on May 30, 2007)

[ewan]

Most 18v drills will be the same size as other smaller drills only wound differently. An 18v drill on 18v will have the same power as a 12v drill on 12v or equivalent.