Tormek ST-250 Supergrind Whetstone Grinder Sharpener AMC77 Update & Upgrade Project

I picked up an early drill powered Tormek ST-250 for just £5.00! (1 pictured above is not mine but it's the same model)
Mine is missing the water trough, tool rest and optional honing wheel but that's no big deal.
I initially intended to sell it but having recently taken up woodturning I thought better of it! So I set about updating/upgrading it.

First thing was to find a small high torque motor.
This is what I found on ebay, a 200w DC treadmill/vibration plate motor with speed controller/AC-DC converter and mains lead sold as a kit by hebdenmotorbits
I had to swap the red/black motor wires around to change the direction of rotation and remove the pulley.

I managed to use the existing drill drive support with some simple modifications inc shortening and re-drilling the pivot hangers and cutting off the drill clamp arm.

I made a plastic splash guard out of an old screenwash bottle to cover the back of the motor nearest the water trough.

I fitted the control board into a plastic project box and wired everything up making sure it's well earthed and that nothing can catch the wires.

Next I drilled the case for the mains flex and speed control knob.

Time to fit the drive wheel and stone,
Underside view of how it all fits.

Found a makeshift water trough, an Arial washing pod tub!

For the honing wheel I used 12mm plywood and cut out 4 disks approx 230mm dia and glued them together.

I then drilled the centre big enough for the M12 nut and drilled & bolted a large steel washer in place.

Next I true everything up in my wood lathe and hollowed out the centre like making a bowl.

I found an old leather belt and used contact adhesive to glue it to the plywood, I cut the joint at 45° rather than trying to skive and overlap the leather to keep it as flat/uniform as possible.

Time to try it!

Everything runs true, with the leather fitted the honing wheel measures exactly 220mm dia.

Measuring the RPM with a laser tachometer so I can mark the speeds on the dial

I found an old paint scuttle I adapted to fit the original water trough hangers. I may get a genuine one later? but this will do for now.

I bought a horizontal tool rest base and some second hand jigs inc a short tool jig, square edge jig and the gouge jig pictured.

Mistakes were made!
I realised the switch being on top of the machine wasn't such a good idea! There's a strong chance of water splashing from the stone and pooling on top of the case, not very safe!
Switch now moved under the motor and away from any water splashes.

I used leather conditioner on the honing wheel followed by Autosol metal polish as a honing compound.
All I need to do now is to make a shelf for it in my workshop. The leftover plywood from the honing wheel will be just the thing!

Seriously my axe needs sharpening.
Having been ground and honed it's now sharp enough to shave with!

I found a cheap genuine AWT-250 water trough someone bought in error!?
I wasn't 100% sure it would fit my early machine, but it was cheap enough to risk it! I can confirm it fits the ST-250 perfectly.