My 72 x 2 Belt Sander

**garage nut** · Mar 31, 2018, 10:17 PM

So I finished off the small rollers. You can see by the amount of thread protruding that I used bolts long enough so to ensure the bearings are sitting on the solid shank.

The next was the drive roller. Before I could machine it I had to decide what motor I was going to use. I have an old 1hp motor that has been lying in the shelf for years, but as I connected it to power to see if it is still running...I was reminded why it is on the shelf...It has a power leak from one of its windings...so I got a good old shock...back onto the shelf with a note on a piece of masking tape to have it rewired.

The next was an old central fugal water pump, but the motor was only 0.25Kw so too small.

Then I remembered a post I red where the guy used a lawnmower engine. I has an old (very tired chassis and grass box) electric mower but the motor is still good.

Upon inspection it turned out to be a 2.2Kw motor and it runs at 2880 RPM. A added bonus was that the method to attach the blade(bolt into the center of the axis) would be perfect for my 4' x 60mm wide drive pulley. I had no idea how I was going to tap a M8 through the 4' pulley (the conventional way to attach a pulley with a grub screw to a shaft). I think my tap is about 1.25' long.

**garage nut** · Mar 31, 2018, 10:34 PM

So...just went through the pages and pages of belt sander designs and my design is this based on this one.

Just small modification so whole machine can be tilted side ways.

**rossbotics** · Apr 1, 2018, 01:46 AM

Your off to a good start, now I want to see it in action

**garage nut** · Apr 2, 2018, 01:01 AM

Well that was a steep learning curve.
1) How to take a video and do a little rendering.
2) Creating a YouTube account and then
3) actually loading it onto youtube...All very scary stuff.

But hopefully it was all worth the effort.