Good points. I was going to have this as a final piece but did wonder if alloy would flex, steel it is then. The spacer was to allow the head of the motor retaining screw. I can see what your saying from your observations so will act on them. We have no steel plate at work so will need to source some.Son of a gun-ner wrote: bravo sir
Now make it in steel
With close inspection of the pro box, it looks like the top of the motor is inline with the top of the two screws that hold the bracket to the gearbox.
Sorry, got to say, if you have this bracket as a test piece, I really would consider making the final bracket out of steel. Under load when you get this beast rolling, that aluminium plate is more likely to flex, and the brass motor pinion will only need to be out of mesh a little for it to get damaged and strip.
Also I noticed the plate/bracket is slightly spaced off the gearbox, it would be better if you could get them tighter together, would make it more stable, and align the pinion more with the first driven gear.
You may have to do a little indent where one of the gear shaft bushes goes. Also I would use a minimum of 2mm thick steel.
Thank you for your comment, phase two rectifying this mount will start soon
John