Here is a list of all the postings Tom Walker 1 has made in our forums. Click on a thread name to jump to the thread.
Thread: Good morning |
13/08/2020 14:38:32 |
OK, so the motor plate says all this. It is an AEI motor. Type: BK.2410 CG B56 Volts: 220/250-380/440 Phase: 3 C/S: 50/60 HP : 1 A: 2.82/1.63 RPM: 1425/1725 BS 170: CONT (not very legible, may be wrong) So, does the dual figure for RPM mean it IS a 2 speed motor?
Edited By Tom Walker 1 on 13/08/2020 14:38:55 Edited By Tom Walker 1 on 13/08/2020 14:40:24 |
13/08/2020 14:13:16 |
The inverter I took off is an IMO CUB5A-1. Outputs 0.75kW/1HP. 5.0A |
13/08/2020 14:00:08 |
OK, I can see there are a few things to consider. My Bantam seems to have a single speed motor, because the switch is only On and OFF. I will see if the plate states otherwise,( though I dont really know what Im looking for). It came with a variable speed inverter, so initially I ran it off my single phase supply. I did make some (probably bad) assumptions. .............. 1. It felt a bit "weedy" (probably the soft start). 2. If you have 3 phase, everything should be on it.... you will have more horsepower, which HAS to be a good thing. 3. I didnt think that the fastest speed was fast enough, in either inverted form or with the single speed 3phase motor. When tuning small jobs, I thought I could do with more revs. (I didnt put a rev counter on it in either form though.) So the easy thing to do was to take off the inverter, and re-jig the connections to give me 3 phase. Then I read about the 2 speed motor, so that has become the Holy Grail. Just how my mind works! Thanks for the advice so far, please let me know what you think. Tom.
Edited By Tom Walker 1 on 13/08/2020 14:02:48 Edited By Tom Walker 1 on 13/08/2020 14:24:29 |
12/08/2020 18:03:19 |
Posted by Chris Evans 6 on 12/08/2020 09:33:09:
Welcome along Tom. Does your lathe still have the original two speed motor ? Some Bantams I have seen are fitted with a single speed motor and VFD inverter. Chris. ( another vintage bike guy) Thanks for all the welcomes. Chris, I have taken off the VFD inverter and re-arranged the cables to supply the motor with my 3 phase. I dont actually know if its a 2 speed motor or not, I need to look at the plate. But the switch would be a give-away surely? The lathe would be a better machine with a 2 speed motor, and seeing as most people with 2 speed Bantams want to convert to single phase, which means ditching the 2 speed motor, I was hoping someone would have one under their bench. As you can see, I am an optimist!
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12/08/2020 06:23:29 |
Hallo I have just joined, as I now have more time being semi retired. So now I want to get stuck in to more fettling. (So does my missus!). I am a vintage car/bike enthusiast, living in Leicestershire UK. I have set up a small machine shop in my workshop, and have been a keen reader of the ME website for many years. I have just bought a nice Colchester Bantam lathe (square head, not sure which MK) which came with an inverter. I have 3 phase, so re-connected the motor, and it works very nicely. But I would like to get it running with the 2 speed motor. So I need to find someone who has one, and hopefully the necessary switch gear to make the change. Also any advice gratefully received. Thanks, Tom. |
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