Simple do-it-yourself plywood sharpener

The other day I made a simple homemade product: a sharpener for two abrasive circles.

To make it, it took several pieces of plywood, a block on the base, a threaded rod, several bearings and a bunch of nuts.

The engine was a homemade product, which I talked about here here and about its device here.

The sharpener is connected to this motor with a long nut.

The bearings were fixed in plywood posts. He drilled a hole with a 25 mm drill. to the depth of the bearing, then drilled with a 22 mm drill.

My bearings were 26 mm, so I had to expand it a little.

I calculated the height of the racks so that the shafts of the sharpener and the engine coincided.

Then I assembled all this structure and checked how it would work.

Now it was necessary to fix the abrasive wheels. For this, I cut out a thick cylinder from 15 mm of plywood to insert it into the center of the abrasive, and made washers from thin plywood.

The cylinders were made with the "Ballerinka" drill with a cutter from a saw blade. How I did it look here.

Then I adjusted the size to the abrasive wheel.

It remained to put it all together. At first I assembled only on two racks, but during operation, the pin swayed, so I put another rack with a bearing in the middle.

The circles had to be trimmed a little after installation. It turned out to be convenient to do this with a steel brush on a screwdriver, turning it on towards the rotation of the abrasive.

The final step from the scraps of plywood, I made a support bar. In order to be able to set the sharpening angle, on one edge of this strip I put a furniture shoe for clamping with a lamb, and on the other I simply screwed a self-tapping screw.

This bar was fixed on the extreme racks.

Finally, I sharpened several chisels and tested the sharpening.

Tested on oak trim. It cuts well from the end, the chips are thin.

I also tried using a drill as a motor, the result is excellent.

More details about manufacturing can be seen in the video clip.

Thanks for reading. I would be glad to have your support in the form of a like and a subscription to the channel. And see other publications on the channel.

Alexander.

P.S. I also invite you to your site.