Multi Purpose Rotary Table from Washing Machine - Muller, 360 Photography, Welding

**Bongodrummer** · May 9, 2019, 03:31 PM

I wanted something to mull green sand, that is mix up the kind of sand you use for aluminium casting. I had an old washing machine, and thought I may as well try and make something a bit more versatile...

Multi Purpose Rotary Table from Washing Machine - Muller, 360 Photography, Welding-f54qbk5juwxsk1q.large.jpg

The project uses the frame and bearings of the washing machine, and a rotating table is made from scrap ply to go on top. The inside of the old machine gets shelves for storage.

Multi Purpose Rotary Table from Washing Machine - Muller, 360 Photography, Welding-bringing-.jpg

The original universal motor is controlled with closed loop PID system on an Arduino microcontroller. This allows constant speed under varying loads.

Multi Purpose Rotary Table from Washing Machine - Muller, 360 Photography, Welding-microwave-timer.jpg

It uses a salvaged timer from a microwave, so that I can set it mulling sand for a while while I do other things. This was an easy win - I just had to extend the keypad cable and it was good.

Multi Purpose Rotary Table from Washing Machine - Muller, 360 Photography, Welding-control-board.jpg

**DIYer** · May 9, 2019, 04:44 PM

Thanks bongodrummer! We've added your Sand Muller to our Forging and Casting category,
as well as to your builder page: bongodrummer's Homemade Tools. Your receipt:

Sand Muller by bongodrummer

tags: rotary table