I'm building a Comet replacement chassis for my Airfix 4F 0-6-0, using Comet's recommended Mashima 1620 motor together with their GB1 gearbox fitted to the centre axle with the motor mounted vertically into the Firebox.
Trying the motor/gearbox assembly for fit with the body, it would appear that I need to remove or shorten the motor shaft from one side of the motor. I've never done that before, how do you go about it?
Any tips much appreciated.
Tommy
Dremmel type thingy with a small slitting disc...finish with a very fine grinding wheel.
Not forgetting to hold the motor armature stationary whilst doing so - or you'll spend all year trying to cut the shaft !....
"turbo" wrote
Done carefully, because this process can generate LOTS of heat and could unsolder some of the components inside the motor.
John.
and also IMPORTANT
SAFETY GLASSES when using cut-off wheels!!!!!!!!!
Steve
......and cover it all over with tape to prevent grot going where it ought not.
Steve wrote in >Message-id:
I used a slitting disc in a 12v drill to trim the shaft. Motor/gearbox assembly now fits snugly.
Thanks to all for your replies.
Tommy
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