I mill wide boards. I have been slipping some of them in the side door of a local cabinet shop when I need them surfaced, but that is getting to be a hassle. I decided to make a wide drum sander. Not really a thickness sander since I mill my own lumber, just a sander to take the sawmill marks out. I had just about everything. A 1 1/2 horse motor, some wood for the frame, belts and pulleys…I did have to buy a couple pillow block bearings.
Here it is almost complete (I still need to built a dust hood) I added a big switch on the side of the frame not shown in the picture, but I have a video I am posting showing me hit the switch. The motor is just hanging from a heavy hinge and the belt like a table saw.
I built a sturdy frame. The drum is fixed and the table raises to the drum.
This screw raises the bed.
It does a pretty good job, looks like it would sand flat to me with the bed all the way up. I have the wrong paper on in this picture, that is just emery cloth I had handy to see if the worm gear clamps to hold it to the roller was even a good idea.
It will sand 25” wide boards. It is set up right now to sand from 2 1/2”-0” thick, my most common need. If I want to sand thicker I can just add riser blocks under the pillow blocks.
This is how I made the roller. I turned some wood plugs and spaced them on the shaft. The shaft is threaded rod and the wood disks are jam nutted in place.
A test run on a piece of osage orange. I was just trying to see if the drum built up too much heat (something I was worried about using PVC pipe) I figured if anything was going to make it hot that hard osage would…it got warm, but not hot.
If you have ever worked with osage orange you know how hard it is, something like cherry/walnut I could pretty much thrown though the machine.
It did a pretty nice job of finishing.
It is not 100% done yet, but any questions, comments, criticisms are welcome.