Type something and hit enter

ads here
On
advertise here

​Finished product first, of course​Condition when I bought it. Not great but not a basket case, either. First order of business was to see if it functioned. It had a 3 phase motor on it, so I needed to hook it up to a variable frequency drive, but found that the motor leads were cut really short. Not worth chasing down a wiring diagram and splicing on to a 40 year old motor. Replacement Baldor found on eBay for pretty reasonable money.​Fully disassembled. Pretty nasty but far from the worst I've done. Everything but the motor belt guard, platen, and that toothed rack is cast aluminum. Light and strong. I didn't want to spend the time scrubbing off the crud and then 3 cans of paint remover and all that mess, so I paid a blasting shop to bead blast everything.​Much improved. Cleared of paint and filth, some damaged was revealed.​Inattentive users over the decades let the belt grind into the machine. Since these are castings, welding will be a challenge.​Doesn't look pretty, but they worked out fine and machined off cleanly. No biggie.​Going through all of this effort I'm not going to reuse old nasty hardware. I separated all the fasteners by size in these plastic organizers, then at my hardware supplier I picked out what I needed, and dumped the old stuff into a bag as I went. Kept me organized and made sure I got what I needed.​Reassembled to finally test it out. New motor wired up to the VFD, and aligned the wheels, etc. But there's a problem with the power. I bought the VFD with the original 1 horsepower motor in mind, but my eBay replacement was 1-1/2 hp. Time to buy a bigger VFD. Not the end of the world- I can use the smaller one on another machine.​I wasn't satisfied with the original tool rest, so I decided to machine a new one. Much bigger, and if it gets worn, I can just machine it square again.​This little bracket holds a catch that mates with a catch on the door to keep the door closed. As you might be able to tell, it's broken (should have two 'fingers'). The replacement I was able to find was too wide for the bracket, so I welded it up to make it wider, but didn't like how it was coming out.​I decided to make one from scratch, so I milled out three pieces, drilled and tapped them, assembled and decided I could definitely do better. So I started over with a single piece of aluminum. Very pleased with version 3 of this little bracket.​​​​The machine originally had a starter mounted to the stand with this unistrut. I could use it to mount the VFD to my machine, but again, I'm going to all this effort, may as well improve it. I ended up using 3/8\" cold rolled steel flat bar, drilled and tapped for mounting holes and assembly. For the horizontal piece I milled out a pocket to accept the riser/strut, and milled the underside to fit snugly over the motor base. Then milled slots to allow motor belt adjustment over time. Much better than a clamped-on solution.​​Next up was improving the stand. I don't like the design of it (4 points of contact are inherently unstable (you don't see office chairs with 4 casters anymore), but it will do until I find something better. The open foot design allowed metal chips and dropped parts getting into the stand with all the grime, so I welded on 1/4\" flat bar and dressed the welds for a finished appearance. Added swivel leveling feet to help with stability.​Everything ready to paint. I plugged threaded holes with aluminum foil to keep from getting clogged with paint, and wiped everything down with pre paint solvent.​Ready for final assembly. I painted the stand with Rustoleum hammered black and the rest of it in hammered dark green.​Adding some pop to the paint- looks kinda sloppy up close, but standing in front of the machine it looks good.​Looks pretty nice in front of a seamless paper backdrop and a couple of flashes.​Flaws abound, but nothing I can't live with. It's 100x better than when I bought it.​I'll probably fork over the $150 for a new contact wheel but for now the original should work. I machined a new crown on it, and machined the other two flat. I can always turn a crown in them later if I want.​My fat, lazy calico keeping me company in the garage. She's a happy girl but her face is always sad-looking. via /r/DIY http://bit.ly/2APEwiu

Click to comment