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Motor Mount Alignment Tool

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harry smith 106/05/2016 05:33:11
1128 forum posts
1306 photos

motor mount tool 3.jpgmotor mount tool  2.jpgHi Fellow Modellers

motor mount tool 1.jpgAfter the last motor install in a boat I sat down over a few pints!!!
I finally worked out a little tool for the perfect alignment of motor to the drive line.
Using a piece of aluminium (33 x 20mm) turned down a 4mm area for the motor holes which you can add a number to your requirements.
The common sizes 16, 19 and 28mm for 28 and 35mm brushless motor.
On a lathe drill a 4mm centre hole for the shaft and added a grub screw thread.
The size of these tools can vary to your requirements (3/16" shaft, larger size area for larger motors and different engine hole spacing for your motors.
These will work on rear mounted engines like the D3648/4 1100kv 910watt 3-5S.

Also I would like to thank Roger from The Marine Modellers Club Hobart Tasmania Australia for the beautiful lathe work again.


Andy C06/05/2016 18:11:13
478 forum posts
120 photos

That's a very well machined tool. Now all I need is a lathe.


Dodgy Geezer08/05/2016 10:30:20
818 forum posts
59 photos

A great idea - and one I will adopt!

Since the shafts on brushless motors are easy to take out, I've been using prop-shafts of the same diameter, and passing a prop- shaft directly through the motor to align the mount and tube (adding a joint afterwards, of course!). But this offers a much more flexible solution...

harry smith 109/05/2016 06:48:41
1128 forum posts
1306 photos

Hi Dodgy

I also used a short bit of 4mm rod in a 4mm flex shaft setup it was a bit floppie, but, with a bit of heat shrink.

I managed to get the mount better setup and with flex shaft easily going into the adapter.

I also put a short bit of IC fuel tube on the flex shaft so if the adapter comes loss I do not drop the flex drive and prop into the depths!!!!


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