Please excuse the messy shop. I feel like I spend more time cleaning than woodworking and it’s still cluttered. Disc sander attachment for lathe. 8” MDF disc, faceplate is holly, glued and screwed to disc, tapped to 3/4-16. Part of a holly branch which usually wouldn’t be useful but I drilled out the pith to prevent checking, it dried just fine. Lathe tool holder from PVC pipe. I really like this. Initially screwed directly to the wood stand, I quickly reali...
I picked up some 6” psa sandpaper at the Borg, cut a couple MDF circles and attached them to faceplates. The stand is made from 1/2”x 3” black pipe and a floor flange. I found some 9” psa discs online so I can go a bit bigger.
I STILL dont think I’ve got this whole multi-part blog thingy figured out yet. So here I am trying to see if I can actually make a “part 2” ... which should actually be part 3 or 4. Anyhooo…. I did manage to finally build my shop made disc sander. YEA ME! On the first attempt I was using a like-new Baldor 110v / 1725rpm motor but unfortunately I realized it was less than a quarter-horsepower, so it was WAAAY underpowered. In just trying to sand the edge of the ...
I’ve been building a disc sander that is powered by my lathe it’s constructed with plywood, and consists of four pieces that have to be put together in sequence to form the disc sander. the first piece has a key that slips in the tool slot on the bed rail of my lathe it forms one of the chambers of the dust collection, it also recieves the dust colection shroud (or would that be called a cowling?) the first piece slides up tight to the power head on my lathe. The se...
Two months in, progress has been made, but of course, not as fast as I would of liked. Figuring out the motors and drives has been the most difficult part of this project. I have been trying to keep the out of pocket cost as low as I could, and provide the power and control that a sander project of this magnitude needs. I had ordered a 2hp 1ph motor on ebay, but that fell through when the motor was damaged by UPS. Since then, what I stumbled upon was a motor controller that uses 220v ...
Jocks, I need your help with determining the Drum diameter for a sander I plan to build. (see earlier post for image). The issue is that I have two options (sizes of steel tubing I have) for the diameter of the drum, either 4-1/2” or 6-5/8”. The design of my Drum/Disc sander has both the drum and the disc mounted on the same shaft. This allows me to drive both with a single 2HP, 1725rpm motor I have. The primary decision I am faced with is which size drum to build. The...
This did start out to be a simple shop made drum sander but it has mutated into something larger (and a bit of an obsession). I’m having fun just thinking about building it, the question is how well I’ll actually be able to replicate my design. Still haven’t located a motor since my last update, but I did mess with the design a little more. I added 4 struts to the table to stabilize it when it’s raised and lowered. I found some brass sleeve bearings that should fit...
Not a threat. A lyric from an early Pink Floyd album. But I am going to do it, to the blanks. There’s some trig. in this part of the blog. If you don’t know Trigonometry youll just have to trust me. First this is what came out of the glue-up. Now I’d pre thicknessed both the Sycamore and the purpleheart on the side which will be triangle shaped before gluing up so all I have to do now is thickness the other side, to 4mm. I do this by trimming the end off in the table ...
On the following day after the glue has set, the band clamps are removed. It is time to begin truing up the ring of segments. In order to attain flatness on one of the ring’s edge I’ll lay a segment flat on the bed of the disc sander. It’s important to maintain a 90 degree angle during this operation. Take your time and make sure of accuracy. When the edge is truly flat we can then proceed to the lathe. Now the ring is mounted on the lathe and the opposite edge...
First, some good news. The dust blowing all over last time was not indicative of poor dust collection in this machine. After closing up shop for the day, it bugged me all night, and I figured there must have been something I missed. There was. Under the belt on the back of the machine is a blast gate. D’oh. Opening that, the dust collection becomes quite good. No more dust spewing in all directions, but this thing sands very aggressively, so hard sanding does result in a little bit kick...
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