im wondering if I can take a simple 12v dc motor (say autmoboile power window motor) and wire it up to a transformer weldors output (rectified side of course) and use that motor to adjust the weldor? would it be too much voltage for the motor? im guessing open circ voltage might be 30 volts? im not sure the idea is to use chain and gears or belts and pulleys to use the motor to turn the adj crank on the welder. thus I would be able to just use a up/down button to adj the welder and be easily made a wireless remote from there? anyone do this? or have any idea on this? the weldor isn't always easy to get at and a system like this would make life a lot easier. of course this would only be used when your not welding and theres no current draw on the system.
welding machine adjuster
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BukitCase
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Doubt it - typical open circuit voltage on a transformer machine is more in the range of 50-90 volts on AC - haven't measured it on a DC side yet.
If you really need remote, your idea might work better using a lawn mower battery with a smallish battery charger across it for your power source... Steve
If you really need remote, your idea might work better using a lawn mower battery with a smallish battery charger across it for your power source... Steve
Arc weld
Veteran Member
You want to power it from the welding leads? Miller used to have an amp set "pen" that I think did that on their industrial machines. Open circuit volts is normally in the 60 to 80 volt range. I think using any kind of motor to adjust the amps, it would be very hard to set the exact current you wanted. Depending on the machine, you might be able to set up a remote rheostat that is connected with an extension cord. I was trying to hook up a windshield washer motor to turn the throttle up and down on an old welder I had. It would have been easier because I could use stops and wouldn't need to set it in between settings. What machine to you want to hook a remote to?
RLstangs
Bronze Member
How to control linear actuator motor by ordinary 2ch rf remote control kit? - YouTube
Check out this video. Use a power window or power seat motor in place of actuator.
Check out this video. Use a power window or power seat motor in place of actuator.
aczlan
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As cheap as a heavy (1-3 amp) power supply is at the thrift store, I would get one of those and mount it inside the welder case...
Aaron Z
Aaron Z
Shield Arc
Super Member
I just buy a machine with a remote.
yes I could use a little transformer and make my own power supply inside the welder... after I posted the question on this I googled it and came across this ...kinda what I was thinking..only I'd go with something slower for fine adjustments... really u never need to go from min to max usually from 90 to 140 amp area... depending on rods size/type or position
My Homemade REMOTE CONTROL & semi Automatic SMAW welder CURRENT ADJUSTER. - YouTube
My Homemade REMOTE CONTROL & semi Automatic SMAW welder CURRENT ADJUSTER. - YouTube
Arc weld
Veteran Member
That looks like the most useless remote control imaginable.:duh: Even with the gear reduction, it still spins about a 1000 RPM's too fast to be of any use. I'd rather walk back to the machine than try to adjust my heat with a set up like that.
CNC Dan
Veteran Member
google for" surplus gearmotor"
there are many high torque low speed motors available.
there are many high torque low speed motors available.
Brad_Blazer
Veteran Member
Modify an antenna rotator to fit?
RCA Programmable Antenna Rotator with Remote - Mills Fleet Farm
I'm no expert but I would think on an inverter machine the current adjustment is just a pot that would be simple to run remotely.
RCA Programmable Antenna Rotator with Remote - Mills Fleet Farm
I'm no expert but I would think on an inverter machine the current adjustment is just a pot that would be simple to run remotely.
I have a transformer machine...similar to the guy who made the video... there all pretty similar actually when u take the covers off! Im hoping to find some sort of motor I can run off the power that's inside the weldor(220 or machine dc) and there is no 120 in a welder! so u cant just tie in too the neutral.
aczlan
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Replace the cord with a 4 wire one and you will have neutral. Otherwise, Amazon.com: Replacement 12V AC Adapter for 12V Medela pump in style and Lactina Breastpumps. 100V-240V worldwide input voltage. 80% lighter than Medela Original: Baby and Amazon.com: AspenTek US LED Power Adapter with 110VAC input to 12VDC output, 2-Amp, 24-watt, ideal for led strip light.: Everything Else will take any voltage from 110VAC to 240VAC and drop it down to 12VDC.
Aaron Z
CNC Dan
Veteran Member
Brad_Blazer said:
It might be.... but you may have problems with the wires acting like an antenna and causing troubble with the inverter. If one was to try it, I would reccomend using shielded microphone cable.
gotta love amazon they have everything...but 12v 1amp don't power much of a motor. but to make the adjustment slow one would want a severe underdrive so maybe???
Nothing beats Surplus Center
aczlan
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Just some examples, how much force is needed?
This motor would work with those power supplies: 2RPM, 75 inch pounds, 0.8 Amps at 12VDC - 2 RPM 12 VDC GEARMOTOR
21 RPM 12VDC, 4.5amps at stall: 21 RPM 12 VDC RA GEARMOTOR. Would need this power supply: 5 amps at 12VDC with 100-240VAC input - Amazon.com: R-Tech UL Listed Regulated Power Adapter, 12VDC, 5 Amp for Surveillance Security Camera CCTV: Camera & Photo
Aaron Z
jwmorris
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I have an older maxstar tig machine that I made a remote for. A yard stick, 1.5v project gear box from radioshack, two sections of hose (one on the gear box another on the knob) and a rocker on the torch for up/down. I just use a band of rubber to connect the two, so if you are all the way up or down and hit it, nothing breaks, it just slips.
It is pulled out in this photo so you can see how it works - the band.
It is pulled out in this photo so you can see how it works - the band.
