Adoom Posted November 12, 2019 Author Share Posted November 12, 2019 These guys had what I needed. https://www.tinkr.co.nz/ Quote Link to comment Share on other sites More sharing options...
Adoom Posted November 17, 2019 Author Share Posted November 17, 2019 I took the lid off so I can de-rust it. Looks okay in there. Everything is oily. There's no obvious wear. The brown/orange streaks are not oil, it's almost like dried varnish. I suspect it's some kind of liquid gasket/sealer. 7 Quote Link to comment Share on other sites More sharing options...
Adoom Posted December 18, 2019 Author Share Posted December 18, 2019 The replacement china sight glasses finally arrived. When I drained the oil out of the carriage, it didn't drain very well. I found that there was a thick layer of watery oily filth sludge in the bottom. So I unbolted the base plate to clean it out. Fortunately it cleaned up quite well. I also discovered that there was a broken spring. It had rusted at one end because it was under the sludge. I replaced the spring and its retaining screw. Tonight I tried to flush out the feed screw gearbox. I discovered it was pretty filthy too. So I moved all the levers to the left and removed the front plate. There's a couple of gears in there.... And then after cleaning. There was a paper gasket. I'm not sure if I want to try make a new one, or just use silicone since it's probably not going to be removed again for many years. 9 1 Quote Link to comment Share on other sites More sharing options...
Adoom Posted December 20, 2019 Author Share Posted December 20, 2019 I used silicone when I put it back on, after making sure all the..... selector forks? fingers? spades? blades?.... were in the appropriate slots. I get to fill it with oil tonight. 2 Quote Link to comment Share on other sites More sharing options...
Adoom Posted December 20, 2019 Author Share Posted December 20, 2019 See my sight glasses.... I also got an Aloris style wedge type tool post from EBay USA. It came with 7 holders. I thought it was a lot of money.... then shipping and unspecified "duty and taxes" got added, which doubled the price. So I'd been trying to think of an excuse to buy a 3HP motor to upgrade the 2.2HP motor. The 2.2HP had a noisy centrifugal switch.... The 3HP motor arrived this afternoon. After removing the 2.2 and finding it really hot, I realised the centrifugal switch was stuck on.... so the starting capacitor was always connected. The 3HP is wired up now, it's much quieter. It was getting late...I still need to align the pulley and I want to see if I can find matching belts as they are slightly different lengths. 8 Quote Link to comment Share on other sites More sharing options...
Adoom Posted December 21, 2019 Author Share Posted December 21, 2019 I fucked up. When I wired in the forward/reverse switch, it wasn't obvious how to include the over current switch... Here is my $260 mistake. The smoke was/is acrid as fuck. Really burns the eyes. 11 Quote Link to comment Share on other sites More sharing options...
Ghostchips Posted December 22, 2019 Share Posted December 22, 2019 Is there still shops that re-wind them? 2 Quote Link to comment Share on other sites More sharing options...
Adoom Posted December 22, 2019 Author Share Posted December 22, 2019 29 minutes ago, Ghostchips said: Is there still shops that re-wind them? Possibly I imagine it will cost almost as much as a new china motor. 1 Quote Link to comment Share on other sites More sharing options...
flyingbrick Posted December 22, 2019 Share Posted December 22, 2019 Yeah 260$ won't get you much of a repair. But yes theres rewinders everywhere 1 Quote Link to comment Share on other sites More sharing options...
Adoom Posted December 24, 2019 Author Share Posted December 24, 2019 Motor arrived already! Unfortunately, the packaging(probably china original) was insufficient and there is a big dent in the fan shroud and in the wiring box. But it's just cosmetic, so I CBF doing anything about it. I've installed the motor. And I've installed the 15Amp overcurrent switch that came with the first one I blew up. The motor is supposed to draw 13.5Amps. I mounted it to the main switch so it was easy to get to. I also put in some cable strain relief using p-clips. The overcurrent switch works too.... Turns out it draws too much when it tries to spin up to 800RPM, but it will do 528RPM just fine. I did a test cut on some 50mm round at 528RPM, 2mm depth of cut and that was fine. I might be able to get it up to 800RPM if I cut the power, reset the over current switch, then power on again before the chuck slows down too much.... maybe. Going by the theory that it's drawing a shit ton of current just to accelerate all that weight. The speeds I get are ~double what it says here because the original motor would have been 1400rpm and I'm using a 2800rpm motor to make it go faster. But if the fastest I can run with the 3HP motor is 528RPM.... It would have been better to use a 1400rpm motor and have more torque at lower speeds. Le sigh.... 1 Quote Link to comment Share on other sites More sharing options...
fletch Posted December 24, 2019 Share Posted December 24, 2019 Smaller pulley? Quote Link to comment Share on other sites More sharing options...
rusty360 Posted December 24, 2019 Share Posted December 24, 2019 528 rpm is pretty slow for small work thou. Quote Link to comment Share on other sites More sharing options...
kyteler Posted December 24, 2019 Share Posted December 24, 2019 You could add a soft start? Although that might not work for regular on duty changes. Quote Link to comment Share on other sites More sharing options...
Geophy Posted December 25, 2019 Share Posted December 25, 2019 VFD? Allow to slowly build the speed up to limit current draw on startup. 1 Quote Link to comment Share on other sites More sharing options...
yoeddynz Posted January 1, 2020 Share Posted January 1, 2020 On 02/11/2019 at 18:32, Adoom said: So the 2.2hp motor I want to try put on it has a 24mm shaft. The dual belt pulley that needs to go on it is for a 28mm shaft. I will try make a sleeve to make it fit. I'll also have to find a taller key. You'll need a lathe to do that.... But yeah- wow. Fuck this is lovely. I like our lathe but a bigger lathe would be mighty handy! 2 Quote Link to comment Share on other sites More sharing options...
Adoom Posted June 27, 2020 Author Share Posted June 27, 2020 Soooo I finally found a big boy motor that wasn't shitloads of money. 5.5KW Oh yeh! It's quite a bit bigger than the 2.2KW. It juuuust fits in the motor house, I have to put it on its side to get it through the door. I've got a 7.5KW VFD on the way. Which was 1.5 times as much as I paid for the motor. To run the VFD I had to get a 32Amp circuit installed in the garage, it will draw ~23 Amps. Fortunately I found a used outlet with a plug for fuck all. But the 6mm cable and conduit cost as much as the motor did. To save some money I pulled the cable and ran the conduit. But the electrician was almost as much again as the motor was. Hey @Muncie. What does this lever do? It's got a cam on the end that operates a couple of switches. I could probably use them as external switches on the VFD. 1 Quote Link to comment Share on other sites More sharing options...
Muncie Posted June 27, 2020 Share Posted June 27, 2020 Forward and reverse, one i use to use also had the standard switch up top as well. Quote Link to comment Share on other sites More sharing options...
Adoom Posted June 27, 2020 Author Share Posted June 27, 2020 Just now, Muncie said: Forward and reverse, one i use to use also had the standard switch up top as well. Oh, neat. So it doesn't do anything mechanical, it's just a giant lever for an electric switch. So I can wire this into the VFD for my forward/reverse. Cheers. Quote Link to comment Share on other sites More sharing options...
Muncie Posted June 27, 2020 Share Posted June 27, 2020 Haha i never thought to much about the mechanics of it but yeah seems overkill doesn't it, does keep the controls near your hand though..... Quote Link to comment Share on other sites More sharing options...
cletus Posted June 28, 2020 Share Posted June 28, 2020 Shame you need forward and reverse, otherwise a 5hp Briggs would be lol to power a lathe with 2 Quote Link to comment Share on other sites More sharing options...
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