Need 115v to dc speed controller

poolcuemaster

poolcuemaster

AzB Silver Member
Silver Member
I know Lee at Brianna just sold 20 or so small 2 wire variable speed dc motors here on az and I got one and have been looking for a converter- speed controller on ebay and was just wandering if anyone had a good idea where to buy a decent, reasonable priced one.--Leonard
 
poolcuemaster said:
I know Lee at Brianna just sold 20 or so small 2 wire variable speed dc motors here on az and I got one and have been looking for a converter- speed controller on ebay and was just wandering if anyone had a good idea where to buy a decent, reasonable priced one.--Leonard
Click to expand...

Leonard,

Are you wanting a 12volt or a 24volt DC output? You need 10 amps capacity or so, right?

Let us know,

Gary
 
Is that what I need ?

GEBrown said:
Leonard,

Are you wanting a 12volt or a 24volt DC output? You need 10 amps capacity or so, right?

Let us know,

Gary
Click to expand...

I guess I need someone to tell me what I need cause I don't have a clue, the dc motor will drive a 1 chuck taig style headstock by oring belt. This will be a fourth lathe in my shop but I have not decided which operation I will set it up to do for sure but it will probably be just shaft work. I am like tim the tool man more power and more speed is way cool with me.--Leonard
 
poolcuemaster said:
I guess I need someone to tell me what I need cause I don't have a clue, the dc motor will drive a 1 chuck taig style headstock by oring belt. This will be a fourth lathe in my shop but I have not decided which operation I will set it up to do for sure but it will probably be just shaft work. I am like tim the tool man more power and more speed is way cool with me.--Leonard
Click to expand...

You need to know if it is a 12 volt or 90 volt or whatever voltage DC motor to get the right controller. Also you need to know the amps if it says on the name plate.
 
If these are the motors ( http://forums.azbilliards.com/showthread.php?t=186715&highlight=motor), they are 12 volt DC. There are a couple of ways to go after it. here is one way... first you need to convert 115 volt ac into 12 dc, with a converter or transformer. If you use a Transformer to change 115 vac to 12 vac then you need a rectifier to change 12 vac to 12vdc then you will probably want a speed controler (http://www.bakatronics.com/shop/item.aspx?itemid=444) to allow for variable speed. Also if you want to be able to reverse rotation you will also need a switch for that as well.
 
Yes Todd it is that 12v motor and I looked at the speed control you gave a link too, but I need the complete unit ready to boogie. My dad taught me not to muck with something I can't see (electricity) when I was young although automotive wiring (12volts) never gave me any problems in 36 years as an auto tech. I don't want to build one I'de rather buy one some way some how.-Leonard
 
Leonard,
I spent some time looking for a whole unit like you are wanting and I just can't find anything out there - odd as that sounds.

One of us needs to contact Minarik or KBIC and see if they have something that can be turned down to 12 volts. The ones I have are designed for 90-130VDC and can only be turned down to about 80V.

You're probably not alone in looking for this. Also, try asking Lee if his regular motors are 12V - maybe he could part with a few of his motor controllers.

Gary
 
DaveK said:
http://www.midwestmotion.com/

I have no experience with this outfit, but they seem to make product that fits this requirement from what I can see.

Dave
Click to expand...

There are a couple of units on that URL that might work. The MMP115VAC is close. Back in the original thread Mc2 had posted the following:

"Gary, I have tested these motors with a motor controller from: http://www.bakatronics.com/shop/item.aspx?itemid=444
I used a 24v power supply rated at 12.5A. The motor at start up drew about 10A but dropps down to between 2.5 and 3A quickly. I would if it where me use a power supply no less than say 5 or 7.5 amps. I was able to drive a taig spindle head stock with chuck on it very easily. I think these motors will run up to 5 or 6K rpm. I have not confirmed this however they are way faster than any cue builder will need. These motors are a steel at this price.

Jim. "

The MMP115VAC will supply up to 5 amps at 12V DC. Jim tested at 24VDC and pulled nearly 10amps at startup and then dropped down to between 2.5-3 amps - but these are 24V readings and it is reasonable to assume at 12V those amperages would be doubled. On the plus side this unit takes 120V AC inputs directly, but it doesn't supply the reverse.

The MMP 20A-12V-RSP model is better in that it can supply up to 20amps (40 for a short burst) and has the built in reverse switch. But it requires a 12VDC input. Which means Leonard (and others) would have to purchase a 20amp or higher 12VDC power supply separately and wire it up (not hard). Those power supplies are readily available on eBay for $15-$25 and although this model doesn't quite fit the "all in one box" criteria, you'd be a LOT less likely to blow something up.

My 2 cents
HTH
YMMMV
Yada Yada Yada

Gary

Edit: I guess all the cheap 20 amp power supplies are sold out on eBay :)

Here are some others:

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=370394523957&ssPageName=STRK:MEWAX:IT
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=190294658712&ssPageName=STRK:MEWAX:IT
 
Last edited:
Mr Hoppe said:
This unit had been suggested in the past. I've never used it, but thought I'd point it out in case it would help.
Mr H
Click to expand...

I hate being the naysayer here, but this unit will only supply 1.5amps at 12VDC. I'm afraid the motor in question would blow it up the first time you fired it up.

Gary
 
If you guys don't find what you need, I can put one togather for you. Let me know if I can help you out.
 
Luck happens when preparation meets opportunity

You are prepared. Here is your opportunity. How much!

Larry
 
I'll have to put a pencil to it. Let see there is the enclosure, the transformer, the rectifier, the speed control, the reverse switch and a little labor for puting it all togather.

I will get some prices togather this evening and post it here asap.

Thanks a Million!!
Todd
 
tsp&b said:
I'll have to put a pencil to it. Let see there is the enclosure, the transformer, the rectifier, the speed control, the reverse switch and a little labor for puting it all togather.

I will get some prices togather this evening and post it here asap.

Thanks a Million!!
Todd
Click to expand...

Damn, sounds like that $20 motor is going to cost a fortune. Thanks for stepping up Todd. Without you the motor would just collect dust around here!

Larry
 
I really need to know the motors watt rating and/or the actual ampere rating. If anyone has that information please let me know.

Thanks!
Todd
 
Your right Dave

There are about a brazillion DIY designs out there for this.

Dave[/QUOTE]

Dave I just wish I could navigate better around the Instructable website cause anything is available there to view, I joined up and asked a wiring question and got 15 replys but can't figure out how to find the page. It is a fun site but hard to figure out where to look for what.--Leonard
 
tsp&b said:
I really need to know the motors watt rating and/or the actual ampere rating. If anyone has that information please let me know.

Thanks!
Todd
Click to expand...

Todd,

The only technical information we have seen on these motors was from Mc2 in this thread http://forums.azbilliards.com/showthread.php?t=186715

They're rated at 12V, he tested at 24V, which is why I've been doubling his amperage ratings. Apparently there is no sticker on them anywhere.

Thanks for helping the guys out.

Gary
 
You must log in or register to reply here.
Back
Top