29 Attachment(s)
Homemade Aluminum 2x72 Belt Grinder (no weld)
About a year ago I built a 2x72 belt grinder. It is made almost entirely from aluminum scraps that I sourced at a salvage yard. It is powered by a 90vdc treadmill motor and controlled with a DC drive. The wheels were all turned from blanks that I cast from my aluminum foundry. One feature that I incorporated into my design that I have not seen on others is a reversible tool arm. One side has a flat platen and the other holds a small wheel attachment.
This is now my go to tool. If you have been thinking about making or buy a 2x72 grinder, then do it. These things chew through metal at a rate I did not image. Shaping metals has become so much easier.
These are pictures of the roughly casted billet and turning it down to make a roller.
Attachment 26434
Attachment 26435
Attachment 26436
These are picture where I made the tool arm and platen. I don't have a rotary table so I used a router to cut the radius for tilting the platen.
Attachment 26437
Attachment 26438
Attachment 26439
Attachment 26440
Attachment 26441
These are picture of the body mocked up and partially assembled.
Attachment 26442
Attachment 26443
Attachment 26444
Attachment 26445
Attachment 26447
Attachment 26448
This is turning the large wheel that added width to the pulley on the treadmill motor. I didnt want to make an entire wheel so i just added on to what was already on the motor.
Attachment 26449
This is the bracket that hold the small roller for the small wheel attachment.
Attachment 26450
These are pictures of the completed grinder.
Attachment 26451
Attachment 26452
Attachment 26453
Attachment 26454
Attachment 26455
Attachment 26456
Attachment 26457
Attachment 26458
Attachment 26459
Attachment 26460
Attachment 26461
Attachment 26462
Attachment 26463