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Unisaw

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Blog series by barecycles updated 805 days ago 5 parts 14099 reads 24 comments total

Part 1: Disassembly

876 days ago by barecycles | 2 comments »

Well Part 2 of this blog started out nicely. I was able to sell my old Delta contractors saw today so in addition to the extra scratch that gives me I also have more room to work. I’ve got 2 motorcycles that I need to finish up and get out of the garage/workshop then I can really get busy with the Unisaw. I have disassembled much of the saw and new arbor bearings are on their way as well as belts. I think I’ve got the wiring figured out. Looks like an aftermarket transformer wa...

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Part 2: Slowly but surely

868 days ago by barecycles | 4 comments »

I have spent most of my time getting the top cleaned up and it looks pretty nice. There are some pock marks in the wing but I’m ok with those. Just got my arbor bearings and they are installed and the arbor bracket is back in place. Everything moves smoothly. Tomorrow night I hope to have a set of new belts installed. The rest of my March is jam packed with work so my next installment will be delayed but it should be eventful. The VFD will be hooked up at that time! Sorry if I sound ...

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Part 3: VFD bench testing 3 phase 3HP

856 days ago by barecycles | 5 comments »

The VFD I will be using for this saw is the Teco JNEV-203-H1. As a first test I wanted to test everything on the bench. I have temporarily setup a 30A breaker and wired the 2 hots to the VFD terminals L1 and L3, the common ground to the VFD terminal PE and capped off the neutral lead. From the VFD terminals T1, T2 and T3 I ran wire to the motor leads 9 wire setup. The only functions I have set are the frequency (60 Hz), accel time and decel time (both 10s). I’m a littl...

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Part 4: External control decided. Vibration found.

855 days ago by barecycles | 2 comments »

Well I decided how I want to control the saw. I wanted to keep the existing LVS ‘cause I think it’s cool, so I wired the VFD to handle it. Just needed to flip 1 DIP switch and reset some of the external control functions and it works nicely. The location of the VFD in the video is just temporary (it will either be going on the underside of the the table or on a wall). I set it up like this to show a vibration. I configured the motor to accelerate to speed in 1s and decelerate t...

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Part 5: VFD mounting, T2 fence and nursing homes

805 days ago by barecycles | 11 comments »

Odd title I know, but bear with me here. My wife and I are in the home stretch with our utility room remodel so have been able to get my workshop back into some semblance of order. I’ve also been able to mount my VFD to the wall and get the Unisaw in place with the T2 fence mounted. The workshop is still in disarray until this remodel is completed so I cannot get to a lot of my equipment just yet. However, life has introduced another wrinkle that we are dealing with. My 87 year ol...

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