Wanting to power a lead screw

[mrbreezeet1]

There is a cheaper one, and it is 20Amps, I think the Amps is enough, but I am not sure if this one has a cooling fan.
I did e mail the seller.
Do you guys think I need a cooling fan on my power supply?
I kind of like the idea of a cooling fan.
This is the 20 amp one.
http://www.ebay.com/itm/170884949622?_trksid=p2055119.m1438.l2649&ssPageName=STRK:MEBIDX:IT

To anyone, do you see any problem with this for a power supply?
From what l can see, it looks like it would be OK?
http://www.ebay.com/itm/SUPERNIGHT-...ing_Parts_and_Accessories&hash=item4adebca1da
It says for LED strip light, but the specks look OK don't they?

• Input: AC 110V/220V ± 20%
  
• Output: 12V DC 30A
• The output direct voltage adjustable range: ±10%
• The output voltage tolerance: ±1%
• Nominal power: 360W
• Protections: overload / over voltage / short circuit

 

[caveBob]

mrbreezeet1, FWIW... what I did:

http://www.hobby-machinist.com/show...our-Shop-Today?p=158264&viewfull=1#post158264

...got the idea here:

Myford powered lead screw
https://www.youtube.com/watch?v=BoFSz2LGgkM

...motor specs from notes when I got it:

24 VDC VARIABLE SPEED GEARMOTOR WITH CONTROL
New, Dunkermotoren precision built brushless DC gearmotor with mounted speed control. Planetary gear reduction. Ball bearings. Full range PWM speed control requires 0-10 VDC signal. Instant reversing.
Part numbers: Motor BG40x50,Gear Reducer PLG52, Speed Control BGE40.

SPECIFICATIONS Speed 130 RPM max
Voltage 24 DC
Amperage 2.1
Torque 70 in - lbs.
Gear Ratio 28:1
Rotation Reversible
Duty Continuous
Mount Face mt 40mm bolt circle
Shaft 12mm dia. x 25mm no keyway
Size 6-1/2" x 2" x 2-1/2"
Shpg. 4 lbs.

hth...

 

[mrbreezeet1]

Looks good, where did you get the pulleys and belt you used, and what kind of ratio is best?
How did you mount the pulley's, did you remove your leadscrew and drill in in a lathe chuck?
And what is your motor RPM at full speed, with out the PWM unit I would think. (just at 12 volts)
I might just use a wiper or window motor.

mrbreezeet1, FWIW... what I did:

http://www.hobby-machinist.com/show...our-Shop-Today?p=158264&viewfull=1#post158264

...got the idea here:

Myford powered lead screw
https://www.youtube.com/watch?v=BoFSz2LGgkM

...motor specs from notes when I got it:



hth...

 

[caveBob]

Looks good, where did you get the pulleys and belt you used, and what kind of ratio is best?
How did you mount the pulley's, did you remove your leadscrew and drill in in a lathe chuck?
And what is your motor RPM at full speed, with out the PWM unit I would think. (just at 12 volts)
I might just use a wiper or window motor.

Thanks, got the pulleys and belts (picked up a spare when I was there) from a local Applied Industrial Technologies http://web.applied.com/ store. You could probably get them online from them as well.

Gear motor max rpm: 130 rpm

Large pulley size: 2.825"
Small pulley size: 1.15"

Using a steel ruler directly on the bed measuring 1" travel on the carriage, the timer on my cell phone, here's the speeds:

Slowest: 1 minute 50 seconds
Fastest: 7 seconds

If you look at the 3rd & 4th pic down on that page I linked... you can barely see how it's mounted. Chunk of round stock with it bored to the leadscrew diameter on one end and tapped 1/2-20 on the other/outside-most end to receive the bolt you see there.

A wiper motor would work just fine, pretty sure that's what he used in that youtube vid. A couple things I really like about the Dunkermotoren gear motors: instant reverse - very handy for milling up to a shoulder then hitting reverse instead of just stop... it reverses quicker, continuous duty, never gotten even warm no matter how much/how long I've run it. FWIW, just checked and saw this:

Dunkermotoren GR 53X58 24 volt dc motor with PLG52 gearhead - $49.00 with both "Buy it Now" and "Make Offer" buttons.
http://www.ebay.com/itm/Dunkermotoren-GR-53X58-24-volt-dc-motor-with-PLG52-gearhead-/321571188779

I couldn't tell from the pics there whether or not it had the built in controller like mine. Not sure how hard it would be to find a controller if it didn't... maybe someone else here would know. Good luck and post your progress...

 

[mrbreezeet1]

OK, Thanks Bob,
Yes, I will post some pictures or a video.
I don't have a mill, so my mounting will not be as fancy as yours.
But l should be able to come up with something.
This is the cheapie controller l ordered, it has a pot and reverse switch already on it.

http://www.ebay.com/itm/351196836465?_trksid=p2059210.m2749.l2649&ssPageName=STRK:MEBIDX:IT

 

[caveBob]

...I don't have a mill...

I didn't either when I made it, just a lathe, spindle sander and random orbital sander...

Funny... just ordered a couple of these last weekend for a project, supposed to arrive today from Amazon:


RioRand RRCCM2SPC Adjustable DC Motor Speed PWM Controller 10V 12V 24V 30V Reversing Switch 120W
http://www.amazon.com/gp/product/B00HTZD9YI

...looks awful darn close doesn't it?...

 

[mrbreezeet1]

Funny... just ordered a couple of these last weekend for a project, supposed to arrive today from Amazon:
I didn't either when I made it, just a lathe, spindle sander and random orbital sander... RioRand RRCCM2SPC Adjustable DC Motor Speed PWM Controller 10V 12V 24V 30V Reversing Switch 120W
http://www.amazon.com/gp/product/B00HTZD9YI

...looks awful darn close doesn't it?...

Those parts look nice, you can do a lot of things with out a mill.
Like I made my t nut for my quick change tool post on the lathe, and a hacksaw.
I often wished I had one though.
Yeah, I'll bet the shipping is quicker too, l added that to my wish list, in-case I want to get another one.
I am still mad amazon upped there free shipping minimum to $35.00.
I was complaining about the local U pull it telling me $20.00 for a wiper motor. (but that was the full service side, I think they are already pulled)
I called the U pull it side back today, and she told me $6.00 for a wiper motor.
That is more like it.
So, then I asked about window motors, she said $10.00!!
I was like "really, a window motor is more than a wiper motor"
She said "Yeah, there bigger"
(I don't think they are)
But anyways $6.00 is pretty good for a wiper motor.
I might get a window motor for my passenger side door, it works when it wants to.
I am just guessing motor, but it could be the wiring harness, esp in the drivers door to the pillar.
Sometimes you can clean up the brushes and where they ride to get them working again.
My drivers side has been fine for about 3 years after that repair.

 

[caveBob]

A little update on the little PWM controller... hooked it up to a good 12v power supply (had to get one from a local HAM radio store), and by gosh it works! Well mostly... only forward but not in reverse. I plan on running 4 -.4A brushless computer case fans with it so reverse, I don't need, a regular DC motor probably wouldn't be a problem.

 

[mrbreezeet1]

well they charged me 15.00 for a used one at u pull it, and I had to go slopping through the damn mud to do it.
I was trying to find a nice new looking one, but got too fed up with the mud.
I was looking for a window motor for my car too, but said the hell with it, that damn mud was too hard to walk through, dragging that wagon they let you use.
Anyways, if is off a jeep, I think a grand Cherokee, but I don't know if the motor is bad on one of the speeds, I did hook it up there and got it to work, but home here, I can only get it to work on one speed.
I am trying to find a wiring picture, but you would think i could get it to work just trial and error.
here is what the wires look like
Black I am guessing is ground, and the red with a yellow trace (and black) is the only one I can get it to run on.

 

[mrbreezeet1]

there are 2 wires coming out of the motor part, a red wire and a brown wire.
The red wire matches up with the red with yellow trace, and the brown wire matches up with the
brown with a white trace, (out of the plug) and there is a black wire in that same side of the wiring plug.
The red wire (red with yellow trace) and black, the motor ran.
I am getting 1.4 Ohms reading. The black wire and the Brown wire (or brown with white trace) I am getting 1.9 ohms reading.
Seems to me the motor should run on both the red and brown.
But I don't get anything hooking up the black and brown to a battery.