Drills

[wardy]

question for helmut; how do you remove the pinion gear from the drill motor and mount it on the car motor? In the past I tried, once, and couldnt, since it seems to be welded on and doesnt seem to have a grub screw holding it in place.
Any help would be very much appreciated.

Hi
It´s possible to remove the pinion carefully with 2 screwdrivers, but some people have bad experience with this kind of working. Better: a pinion puller, you can buy this tool for a ridiculous price. example
http://www.slotracer.ca/miva/merchant.mv?Screen=PROD&Store_Code=SR100502&Produc t_Code=H107000http://www.slotracer.ca/miva/merchan...100502&Product _Code=H107000

I made the tool by myself from a scrap piece of 15*15*1.5 box section, just slice one side ca 5 mm with a saw and cut a m 3 thread on the opposite side. Works sufficient.
Helmut

[glen]

i use a butane torch (a mini one) to heat up the gear than just use a flat head screwdriver to lever the gear off, works fine

glen
i used the same method before, (well proven since more than 20 years )but another german builder told me, he had not removed the pinion by this way, but the rotor shaft :sad: .... IMHO its better using the tool, takes just a few minutes of preparation.
Greetings from Austria (the no kangaroos country)

[wardy]

thanks for the advice guys, i think ill get a pinion puller, seems the best bet; not got much in the way of workshop accessories for preparing metal etc. Next silly question then, whats the best way to keep it on the model cars shaft....

http://robotwars.00server.comhttp://robotwars.00server.com

[glen]

have many people had problems in the UK with the pinions in the gearboxes shearing and the gears shredding?? ive had really bad experiences with drills honestly.

also helmut, could you provide some more info on how you made that gear puller?

Thanks Helmut, just lookin for the right type of drills and Ill be sorted.

Thanks for you advice and have a merry xmas.

You could always buy just the drill type motor and make a gearbox.

thats what I did.

Glen, sounds like your gears werent correctly meshed. They tear up real quick if even 1mm out.

If anyone gets sick and tired of drills, let me know on info@jamesbaker.f9.co.uk and Ill tell you how much my custom made gearboxes cost. They are not as cheap as drills can be, but they are supplied with motors and ready to bolt in. Choice of ratios and module. I can even do a double trouble gearbox which uses 2 motors to turn 1 output shaft. Quite neat.