Finally I got a record lathe.
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- the_ducktail
- Posts: 105
- Joined: Thu Dec 20, 2012 8:08 am
Re: Finally I got a record lathe.
some dust but nothing to worry about
- the_ducktail
- Posts: 105
- Joined: Thu Dec 20, 2012 8:08 am
Re: Finally I got a record lathe.
dust and other stuff I save it all due to can be important parts...see next picture
- the_ducktail
- Posts: 105
- Joined: Thu Dec 20, 2012 8:08 am
Re: Finally I got a record lathe.
heres what I found inside, now the chromed thing like a tip of a pen...seems to be a piece that do some kind of connection between the fuse and lathe. luckily I didn't throw it away. it has a spring inside. but the other small spring I dont know what is that for? the other plastic black pieces...Also dont know.
- the_ducktail
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- Joined: Thu Dec 20, 2012 8:08 am
Re: Finally I got a record lathe.
this seems to be a fuse camera due to in the metal part it reads: 3A 125V
3 amps OK but 125 volts? is because it is from the US?
- the_ducktail
- Posts: 105
- Joined: Thu Dec 20, 2012 8:08 am
Re: Finally I got a record lathe.
now this says 220V
2.1 MFD
- the_ducktail
- Posts: 105
- Joined: Thu Dec 20, 2012 8:08 am
Re: Finally I got a record lathe.
heres ALL written on this motor:
Ashland Electric prod inc
AEP motor
Long Island City , NY USA
AMP: 04 PH: 1
SER: 3175
VOLTS: 114 CY: 60
CAT: D80KBV-1
TYPE: HYST.SYNC.MOTOR
RPM: 1800 HP:1/100
oC RISE: 30
DUTY: CONT MFD: 2.0
- the_ducktail
- Posts: 105
- Joined: Thu Dec 20, 2012 8:08 am
Re: Finally I got a record lathe.
one more from the fuse camera.
Re: Finally I got a record lathe.
Hi,
Good work grabbing the motor details. You have the better style motor (Synchronous type). These are preferred over the typical shaded pole induction motor. Its shaft speed is an exact multiple of the line frequency (1800 rpm / 60 hz = 30). So at 50 hz, the motor will run at 1500 RPM. You really need some sort of frequency/voltage converter or you'll have to make mechanical changes to your machine to adapt it to the slower shaft speed. Looks like the motor is only rated at 1/100hp (7.5 watts shaft output power). That means you won't need much to power this up if you go the frequency converter route (15-20 watts should be fine).
Mark
Good work grabbing the motor details. You have the better style motor (Synchronous type). These are preferred over the typical shaded pole induction motor. Its shaft speed is an exact multiple of the line frequency (1800 rpm / 60 hz = 30). So at 50 hz, the motor will run at 1500 RPM. You really need some sort of frequency/voltage converter or you'll have to make mechanical changes to your machine to adapt it to the slower shaft speed. Looks like the motor is only rated at 1/100hp (7.5 watts shaft output power). That means you won't need much to power this up if you go the frequency converter route (15-20 watts should be fine).
Mark
- the_ducktail
- Posts: 105
- Joined: Thu Dec 20, 2012 8:08 am
Re: Finally I got a record lathe.
so the better idea should be to use a shaft adapter or to change idlers right? About the idlers...I noticed 78rpm are smaller than 33rpm. so if this will run slower at 50hz I will need to reduce the idlers size I have, for them to run faster and run at right speed?
Re: Finally I got a record lathe.
Hi,
It's tough call. If you are going the mechanical route, I'd work on the motor shaft pulley. Since your lathe already has the 3 idlers for all speeds, I'd keep them as-is and concentrate on the pulley. However, you will still need a good step down transformer to feed the motor 120V vs. 240V.
If you can find a pure sine wave inverter like this:
http://www.theinverterstore.com/180-watt-pure-sine-wave-inverter.html
along with a 12Vdc powersupply, that might be the easiest route. Then you don't risk messing up the mechanics of your lathe. It should be easy to find a 12Vdc power supply that runs off of your local AC mains (240 V 50hz).
BTW, as far as the compound idlers go, its the ration of the upper and lower diameters that set the speed. So even though the 78 idler looks to be smaller in diameter, its actually a smaller reduction ratio than the 45 or 33 (looks to be close to 1:1).
Mark
It's tough call. If you are going the mechanical route, I'd work on the motor shaft pulley. Since your lathe already has the 3 idlers for all speeds, I'd keep them as-is and concentrate on the pulley. However, you will still need a good step down transformer to feed the motor 120V vs. 240V.
If you can find a pure sine wave inverter like this:
http://www.theinverterstore.com/180-watt-pure-sine-wave-inverter.html
along with a 12Vdc powersupply, that might be the easiest route. Then you don't risk messing up the mechanics of your lathe. It should be easy to find a 12Vdc power supply that runs off of your local AC mains (240 V 50hz).
BTW, as far as the compound idlers go, its the ration of the upper and lower diameters that set the speed. So even though the 78 idler looks to be smaller in diameter, its actually a smaller reduction ratio than the 45 or 33 (looks to be close to 1:1).
Mark
- the_ducktail
- Posts: 105
- Joined: Thu Dec 20, 2012 8:08 am
Re: Finally I got a record lathe.
Thanks Markrob
I will do it that way.
Two questions. just to be sure:
1) About the 180 Watt Pure Sine Power Inverter with USB Port by AIMS
this should be output 120 Volts ac right?
output 220 will not work? (theres plenty of them at my country)
2) About the 12Vdc powersupply
I found at my country:
http://articulo.mercadolibre.cl/MLC-408833785-fuente-de-poder-12v-30a-con-potenciometro-_JM / 30 amps
http://articulo.mercadolibre.cl/MLC-408833786-fuente-de-poder-12v-10a-con-potenciometro-para-camaras-_JM / 10 amps
I want to buy the 30 amps. Are these the ones I need?
Best regards.
Richie.
I will do it that way.
Two questions. just to be sure:
1) About the 180 Watt Pure Sine Power Inverter with USB Port by AIMS
this should be output 120 Volts ac right?
output 220 will not work? (theres plenty of them at my country)
2) About the 12Vdc powersupply
I found at my country:
http://articulo.mercadolibre.cl/MLC-408833785-fuente-de-poder-12v-30a-con-potenciometro-_JM / 30 amps
http://articulo.mercadolibre.cl/MLC-408833786-fuente-de-poder-12v-10a-con-potenciometro-para-camaras-_JM / 10 amps
I want to buy the 30 amps. Are these the ones I need?
Best regards.
Richie.
- the_ducktail
- Posts: 105
- Joined: Thu Dec 20, 2012 8:08 am
Re: Finally I got a record lathe.
Hi,
The power supplies and inverter you selected look fine to me. The 30 amp supply is probably overkill, but it is not that much more costly, so I'd go with that. I assume it operates from 220Vac 50hz at the input.
I don't see any specification for the line frequency accuracy for the lower priced pure sine inverters, but since these seem to microprocessor based, I assume they are quartz crystal controlled. If not, you may see a slight speed error. But I expect it would be small worst case.
Mark
The power supplies and inverter you selected look fine to me. The 30 amp supply is probably overkill, but it is not that much more costly, so I'd go with that. I assume it operates from 220Vac 50hz at the input.
I don't see any specification for the line frequency accuracy for the lower priced pure sine inverters, but since these seem to microprocessor based, I assume they are quartz crystal controlled. If not, you may see a slight speed error. But I expect it would be small worst case.
Mark
- the_ducktail
- Posts: 105
- Joined: Thu Dec 20, 2012 8:08 am
Re: Finally I got a record lathe.
Markrob:
Thanks I will go buy these things and will let you know how is this going.
I will try to clean up the lathe meanwhile and open the record head to check if all seems to be in right shape.
Have a nice week bro.
Richie.
Thanks I will go buy these things and will let you know how is this going.
I will try to clean up the lathe meanwhile and open the record head to check if all seems to be in right shape.
Have a nice week bro.
Richie.
- the_ducktail
- Posts: 105
- Joined: Thu Dec 20, 2012 8:08 am
Re: Finally I got a record lathe.
this is for a 125v 3a fuse but is this any special kind of fuse or just regulare ones (made of glass with two end tips made of metal and a thin metal fiber inside)?
Re: Finally I got a record lathe.
Then you can clean the turntable bearing under the platter from old grease or oil.
- the_ducktail
- Posts: 105
- Joined: Thu Dec 20, 2012 8:08 am
Re: Finally I got a record lathe.
its functioning with a 110v transformer but as Markrob said, its not at the right speed but I bought a sine wave inverter and a power supply, not installed yet but soon will be here to record some cuts
- the_ducktail
- Posts: 105
- Joined: Thu Dec 20, 2012 8:08 am
Re: Finally I got a record lathe.
head disassemble
does someone knows how to check if the head is fine?? regards
does someone knows how to check if the head is fine?? regards
Re: Finally I got a record lathe.
Hi,
Good to see you are making progress. The head looks to be in great shape. Since its an 8 ohm impedance, just hook it up to an audio power amp capable of driving 10-50 watts and feed some program material into the head. Monitor the voltage at the head terminals with an multimeter set for AC volts and make sure you are not driving it with more the 2-3 Volts (short duration peaks can be higher). If the head is working, you should be able to hear the audio (sound will be tinny). You should also be able to feel the stylus holder vibrate if you touch it with you fingertip.
Mark
Good to see you are making progress. The head looks to be in great shape. Since its an 8 ohm impedance, just hook it up to an audio power amp capable of driving 10-50 watts and feed some program material into the head. Monitor the voltage at the head terminals with an multimeter set for AC volts and make sure you are not driving it with more the 2-3 Volts (short duration peaks can be higher). If the head is working, you should be able to hear the audio (sound will be tinny). You should also be able to feel the stylus holder vibrate if you touch it with you fingertip.
Mark