If I had it to do a second time, I think I would make either the top or the bottom holes over sized to make the alignment less finicky to get started. Read This, Is it Really Possible to Convert a Wood Lathe Into a Metal Lathe? B. Pacific Scientific. Thanks for the tip. Still think I will work on a shroud to keep the dust away from the motor, i tried my dust collector around the lathe, doesnt work!! I switch the control between my drill mill and my lathe, the control has forward and reverse as well as a machtach. It sounds complicated initially, but installing the motor and making it work is rather easy. DC conversion on lathe. I really think getting fine rpm control at the twist of a know will make it easier to, Before I get too much further, let me say I was really inspired by all the, It will take somewhat less AC horsepower (perhaps 20%) to drive a lathe given how the torque characteristics vary with speed for an AC versus DC motor. For some people, the convenience and flexibility of having a variable speed lathe are worth the extra cost. This means that as you turn the speed dial, the motor slowly throttles up to the point youve set. The tachometer kit comes with the tach, sensor and magnets. It currently has a 1/3hp motor with 5 step motor>intermediate>spindle pulleys to give 250-900rpm and 3000-5000rpm. Tip I have cleaned,repainted, and checked it mechanically. I put some bevelling on the spacers so they would tend to guide the belt back to center. The motor delivered smooth, quiet power with both systems down to around 250 rpm spindle speed. This forum is dedicated to those hobbyists with the 3-in-1 metalworking machines. Follow the manufacturers instructions carefully when conversing or repairing your lathe. Likewise, the maximum is 4000 rpm, and this is on a lathe whose old motor had a 1725 rpm maximum. Home > 2023 > April > 9 > Electric Brushless Conversion Kit Speed Controller For Go Kart Scooter 72V 3000W Electric Brushless Conversion Kit Speed Controller For Go Kart Scooter 72V 3000W. The amperage rating on the DC motor is not the amperage the treadmill will be using from your wall outlet. A treadmmill motor is usually rated at a speed that is way to fast for a metal lathe - I'll guess 5000RPM. A quick update on my DC motor project. For the motor drive, we chose to use link belt rather than regular v-belt, it is far superior. Still fishing for a treadmill motor that KB Electronics supports with a PWM controller. Ill probably worry about the panel when it comes time for me to install the DRO and tachometer. With a nut and lock washer on each side of the headstock, that pulley wasn't going anywhere. Well done, and cleverly executed. VFDs are used on most modern small lathes. The answer is yes! by LX Kid Wed Apr 29, 2015 12:40 pm, Post kaustin | Posted in Turning and Carving on July 4, 2009 03:14am. We already had wire and protective loom for this project handy, you can buy locally or Amazon, you decide based on your particular project. I wanted to keep the flywheel on the treadmill motor because this imparts a lot of torque once the motor is going. You mention the controllers are roughly the same price, but I think you may find out that they can be the differentiator between the motors. A tree stump two feet in diameter makes that treadmill go fast. Second, there is a lot of bang for the buck. 90-180V 10A. Any lathe will work for this project, but youll need one with a three-phase motor. Did you make this project? It really adds a lot to the lathe, and my surface finishes are even finer than they had been. Ha ha, Definitely not giving tours. Option 1. Nice motor -- 14 amps DC is a bit much for the KB products. Make sure that all of the wires are properly connected. Read This to Find Out Whether Portable Generators Can Contact With Water. That price seems a little steep for my wallet. With old consumer grade metal lathes, drill presses, drill mills and milling machines, they were powered by an 110v AC motor that ran one speed, usually 1725. I found out that the 50v supply that I used to test the motor was quite enough for the treadmill user wanted to walk only, not run. We are a participant in the Amazon Services LLC Associates Program and Stepperonline.com affiliate advertising programs designed to provide a means for us to earn fees by linking to Amazon.com and Stepperonline.com sites. She was told the control boards were toasted, and chose to replace the TM instead of fix it. I took the electronics, wiring, and, of course, the motors. Much easier to install the motor now! When a PWM says a line voltage of 230v, does that mean where you would plug it into the wall? To complete this project we bought the following items off of Amazon. DC Permanent Magnet with PWM controller (Great for torque at all speeds).2 wires to the motor (Usually). 1 year ago. I was connected. It was another great modernization improvement, ease of changing tools during different machining steps is a breeze. Tips, techniques, modification and use of these machines is topical. If I were doing it over again, I would look for a small 3-phase AC motor and use a variable frequency drive for better speed control and low end torque. DC motors are also easy to find on eBay. The first factor is the cost of the lathe. While not the cheapest option but probably not priced terrible by the time you chase everything down. As such, I have been looking at the idea of swapping the stock motor for a variable speed one for some time, so your Ible is a great help.Then it's off to the drill press.THANKS. Has your config help up OK? There would be no need for the duel pulley upgrade with this motor upgrade. Im going to need to make a better motor mount so this doesnt happen again. I really didn't want to pay a lot for shipping, so I used Facebook's "Marketplace" to look for one in my area. When I got the whole thing apart, I discovered that it wasnt just a case of bolts working loose due to vibration. I have had to bore out pulleys before to accommodate these odd dc motor drives, but never one as big as a step pulley. $279.95. After digging around a bit, I see a lot of people more knowledgeable on matters of electronics point out we can get better performance of our rectifier-controller circuits by adding a D.C. capacitor across the positive and negative D.C. output terminals of the bridge rectifier.It's indicated the first and most important thing in choosing a cap is, the voltage. You can see what it looks like down below. There have been some really bad motor controllers that couldn't handle that situation (hopefully all in the past). Installed in a headstock as I suggest it will increase max spindle RPM to over 9000. by LX Kid Tue Apr 28, 2015 8:54 pm, Post It may not display this or other websites correctly. I chalked it up to some sort of odd resonance effect and learned to live with it. Okay, who has been running my lathe backwards! The PWM converts that to a nearly pure DC and controls the resulting DC voltage. by LX Kid Wed Apr 29, 2015 7:40 am, Post I simply sliced the heads off the bolts I had using an angle grinder and cutoff wheel, touched them up slightly on the grinder, and then put a nut about a third of the way up on each and Loctited the nuts in place with the really strong red Loctite. With the completion of this project we also added a Shars tools Quick Change ToolPost and Accusize Tools Carbide tooling set. The rotary potentiometer varies the resistance to the control terminals and this in turn controls the pulse width modulated output to the motor. Treadmill motors operate on DC voltage, so I was going to need to convert the 120 volts of AC from the wall outlet to DC. Most of the industrial electronics that I have seen is rated at 40C. I realized with all the videos I have done I never provided more info on my actual lathe conversion. by wsippola Wed Apr 29, 2015 6:34 pm, Post Next I wanted to make end pieces of to go on either side of the pulley to keep the belt in place and position the pulley on the shaft just right. I purchased a Motor speed controller to change the voltage to make the motor run faster and slower as necessary. True Treadmill 2.5 hp DC Pacific Scientific 450 500 Motor Lathe Dark Grey USA . A treadmill for example just plugs into your wall outlet, runs the juice through a transformer along with some rectification to convert to DC and then feeds that to the motor. v belts dont require lots of tension to function properly. Can You Build Your Own Lathe? 3 years ago. I also bought a bridge rectifier to change the AC from the motor controller to DC. The serpentine V spacing on it is 0.092" while the V spacing on a typical US serpentine belt is 0.145". We happened to have a treadmill that was broken that we used as donor components of the motor and control board, the rest of the required items were purchased. Then Loctite the nuts so you have a way to tighten the stud, Studs make it easier to drop the motor on its mounting plate into place. Fabricate a custom control panel to fit the lathe. I was looking at KBMM-125 controller. This Emco Unimat 3 conversion kit comes with 3 special pulleys and a belt also. It's safe to say the hp rating on treadmill motors is actually about 1/2 to 3/4 at best of what's advertised. For now I just want to put a few miles on it to be sure it works well. Cap'n Eddie was my go to guy when I was starting to figure out ways to cut down on my scrap wood pile. today was the day. Steamchick.. Steve Jordan put one {crank} on his Myford lathe. Going to pick up that 1.25 HP treadmill this morning. Posts: 744. I put these at 90 degrees to one another. In their place I used jumper wires to a 5k linear pot. We happened to have a treadmill that was broken that we used as donor components of the motor and control board, the rest of the required items were purchased. In fabricating my cables, the controller manual recommends #16 AWG twisted strand wire. ), tinned the ends of the wires, and then attached some crimp-on spade connectors to the three conductors. I was working on turning an Oak bowl when the motor shorted out. "But", I hear you say, "I thought you said it had to be DC voltage?" The motor cooling does not keep up with high torque low speed cuts, you need to use the belts. To complete this project we bought the following items off of Amazon. Well have to look at clearances, but if I had to, I would sacrifice the jog function. You may as well use the controller that came with the treadmill. Youll need one thats compatible with the motor on your lathe. This conversion is absolutely awesome and highly recommended and should have been done by us a long time ago. Once the belt is removed, you can begin working on the conversion. Interface the DC Controller to the DC Motor. That is true, but since we're dealing with a motor and not something more sensitive like an amplifier or computer circuit I skipped the capacitor. Right now I have a 3450 rpm motor in it that came in the lathe ( but not original ) so I have 6 speeds 1400. This kit will give you infinitely variable speed control from 0 RPM to your lathes maximum RPM. If I put in the 1725 rpm motor my fastest speed would be about 700 rpm. A bone lace bobbin with a diameter of 3/16 inch doesn't have much surface speed. When I got them home I started taking them apart. Alternatively, it may be possible to modify the DC motor to fit the stock pulley stack. Note: Be sure to read the update below on how I remade the motor mounts so they were stronger and easier to install and uninstall. CNC Spindle Control Upgrade Kit, Mini Lathe and Mini Mill. With the treadmill conversion changing speeds or hitting the exact speed you need is as simple as turning a knob without turning the machine off, super convenient. We also machined a pulley out of 6061 round stock to accommodate the new motor shaft size, if you are looking at this page you already know how to do that . My second was a touch of annoyance. Many drill presses, cplishers, small lathes, etc have been converted to DC treadmill motors but the more successful conversions required some carefully made choices. Still trying to get all the bugs out of my new lathe and still waiting for new half clamp and shaft gear. Gemini Controls Treadmill Drive Installation & Adjustment, In our case we chose to mount the motor below the table and run the belt down rather than behind the lathe as was original design shown in the illustration below. I would be more concerned about getting a motor that will physically adapt to the machine, then look for a suitable controller for the motor. Santa Fe Springs, CA 90670. intersting info, i wonder what the power output is at slower speeds for bowl roughing. This belt is "delicate" and gets damaged easily and is very difficult to source locally. Copyright 2023 Home Tools Pro | Powered by Astra WordPress Theme. Share it with us! 2 run to the shunt-field current , 2 run to the armature. Thanks, I will keep my eye open for one. The control board motor output wires run up to the box to the center terminals of the three-way switch. Hello, I have a Sieg C4B lathe. The link belt is easy to adjust size as necessary and it also does not hold a set like regular v-belts which cause machine vibration and chatter in small lathes. You will need to fabricate a bracket for your application and mount the sensor and magnet. In case I ever need to put the AC Motor back, here are the connections. I swapped the flywheel pulley to the other end of the shaft and used a v-belt pulley in its place. Thanks Don and ninefinger for your replies. Not a bad thing necessarily for full size lathes turning large pieces from a safety standpoint but a real pain in the butt if your tuning pens at 3000 rpm and need to stop and inspect the wood frequently. Great instructable thank you for putting it together. (This motor was supposedly rated at 3/4 horsepower, but those in the know say it's really more like 1/3 horsepower).I remembered that I've seen videos of how other people have used Treadmill Motors on other power equipment, so why not try to put one on the lathe? At the same time, I wanted it to be easier to get the motor on and off the la. I dialed it up to 30 or 40 rpm at the minimum. Yes, line voltage refers to the AC supply voltage. I am building a new stand since the one it is on is not original and is not substantial enough for the heavy machine. Three terminal connections of which a 10,000 OHM rotary potentiometer is connected to. Have fun and take care Leo Van Der Loo Comment PostCancel Thread Continues Below. Certain configurations seemed to make the belt want to walk off the end. Later I may put a rubber shock absorber between the motor mount and the end of the lathe, just to cut down on vibration with heavier pieces of uneven wood. The same bracket will be set up to eventually accomodate a DRO. Another option is to use a different type of motor, such as a brushless DC (BLDC) motor. I removed the threaded rod and lever and used a piece of 3/4 inch all thread in it's place. Turn on the lathe and test the new motor. This conversion is absolutely awesome and highly recommended and should have been done by us a long time ago. Variable Speed Lathe Motors. Speed Dial: A continuously variable potentiometer. Get the motor to turn at a single speed. by Torch Wed Apr 29, 2015 6:24 pm, Post You can put a speed control on a PSC motor by adding an external variable resistor (or potentiometer) to the motors wiring. What do you think about it? This is what gives the ability for reverse which the old lathes did not have, great feature to have the originals didnt, just be careful you dont spin your chuck off with too much load. Broken mounting bolt. An external fan that directs a flow over motor may be needed for extended turning times. $700.00. It's also very fast at 4900rpm your old motor was 1440, other that it should work OK. Black is not a colour ! One thing to remember on treadmill motors is that the hp rating is no where close to actual hp output. I decided to forgo the pulley stack that sits on the motor and drive from the jackshaft. Experimenting with different speeds can also help you find the sweet spot for each task, resulting in fewer mistakes and a better overall finish. - with a simple disconnect for when I don't need it? owner informed me that the motor running the treadmill was a $300 motor. This is the circuit board for this conversion. Reverse: A switch to reverse the contacts so the motor runs in reverse. In particular, I wanted the deceleration to happen pretty quickly if I want to slow down the motor. Can You Run a Portable Generator in a Shed? Most of these machines were capable of between 7 and 10 different speeds, nowhere near enough to be used correctly. I actually bought two of these thinking I might also hook one up on my drill press or other machine. You can see what it looks like (partially at least) down below. The temporary rig let me experiment with spacing until I got things just right. by Torch Wed Apr 29, 2015 9:53 am, Post Atlas Lathe treadmill motor conversion components used LED Digital Tachometer, AC220V Digital Speed Meter,4-Digit Tube Display 120PCS Premium Fridge Magnets 10K OHM Linear Taper Rotary Potentiometer LeMotech ABS Plastic Electrical Project Case Gardner Bender GSW-16 Toggle Switch (DPDT) 20A 125V On/Off/On It was another great modernization improvement, ease of changing tools during different machining steps is a breeze. Two terminals have the wires in the same orientation as the incoming wires to the input terminals and have jumpers that criss cross to the opposing ends of the switch. Actually, it's three bolts. Just my 2. Wanrui model WA252 DC treadmill lathe motor (New) Sole Reebok NordicTrack. There are two types; electronic only (no moving parts) and rotary converters (1P motor drives 3P generator) which are used for higher horsepower industrial type lathes. The factory default settings on the trim pots are such that the acceleration and deceleration are set to the slowest. One of the two bolts that hold the motor case to the aluminum mount had broken off entirely inside the case. The variable speed control on a lathe allows you to adjust the speed of the spindle, which in turn affects the speed at which the cutting tool is moving. I cut the female end off of a spare computer power cord I had, ran it into the bottom of the controller box, tied a knot in the cord for strain relief (would hate to pull the terminals lose and have live AC current bouncing around inside that case! Spindle components: p/n 314571 treadmill motor 2.8 hp 130vdc intermittent 2.6 hp 110vdc constant duty 1940 watts 18 amps. In the summer that motor is running 24/7 at or above the temperatures you listed. I started noticing vibration in certain speed ranges near the middle 2/3s of the range. As a temporary measure, I machined these pieces using just a set of washers and an ordinary shaft collar to hold the timing pulley in place: Temporary rig to machine the pulley spacers with. Where I work in Iowa, we've got an "845"Hp motor on a large air compressor. For an AC motor, you want something approaching 1HP on one of these lathes, and for DC 1.2 would be ideal. JavaScript is disabled. This will allow you to adjust the speed of the motor by rotating the potentiometer. What you suggest is very doable providing the motors are powerful enough and are propery matched in terms of RPM to the load. Fast & Free shipping on many . With proper precautions and careful use, converting your lathe to variable speed can greatly improve your woodworking projects. The only other tool you'll need is a drill and tap set. Aha, says I! To me "line voltage" in house wall plug in! Carefully remove the motor, ensuring not to damage any wires. Would you have an opinion on that one that could share? Go through until you find a winner. on Step 8. This risk can be minimized by following all safety procedures and wearing the proper safety equipment. Those failures are due to the way the manufacturer treated that poor motor during the design - just to get the desired performance at a lower rated Hp. So check it out and see. (Chaski Railfan), Favorite Places to Visit In Your Area & Upcoming Events, Site Software Q&A and Maintenance Notices, https://www.galco.com/buy/KB-Electronic 125#bottom, http://www.kbelectronics.com/manuals/kb manual.pdf. Reading over the various potential modifications, I decided the DC motor needed to come fairly early in the process for several reasons. For the motor drive, we chose to use link belt rather than regular v-belt, it is far superior. by Torch Wed Apr 29, 2015 2:58 pm, Post You must log in or register to reply here. Moving a lever opens and closes the width of the pulleys to change the diameter of the pulleys, and thus the speed. Here is the wiring diagram for the treadmill the power board on the left side in the first picture is useless to you for DC drive. It ran perfectly once I stuck a paint stick into the plastic key slot. Option 2. Re: Using Treadmill motor on Metal Lathe. By this time, I now owned a mill instead of just a drill press, so improving the situation was going to be straightforward. Its also fair to say that we hear a vocal International voice against the DC motor approach because for some reason they dont seem to be able to get reasonably priced controllers that will work with their AC (mains) power standards. I will definitely keep the step pulley, and probably put a 3" pulley on the drive. Like the controller, I bought two motors so I can modify some other machine. Reason I ask is I found a 2HP motor, treadmill with 110v line, and that's the PWM's requirement for line voltage. Within some range of spindle speed and loading it would outperform a 1 1/8 HP motor. i cant see your pics for some reason, but the video looks pretty cool. Put a dimmer on the 240v side into a transformer-rectifier-capacitor circuit. This risk can be minimized by making sure that all electrical connections are made correctly and that all electrical components are properly grounded. Decided the DC motor to fit the stock pulley stack jumper wires to the end. The box to the three conductors bolts working loose due to vibration acceleration and deceleration are set the. Your application and mount the sensor and magnets need it controller that came with the 3-in-1 machines. The treadmill the 1725 rpm maximum by Torch Wed Apr 29, 2015 2:58 pm Post! For me to install the DRO and tachometer fastest speed would be ideal ( partially at least down... Done by us a long time ago mount had broken off entirely inside case. Was another Great modernization improvement, ease of changing tools during different machining steps is a lot the... At 90 degrees to one another those hobbyists with the tach, and... It mechanically potentiometer varies the resistance to the three conductors not the cheapest option but probably not priced terrible the! Pm, Post you must log in or register to reply here and this is on a lathe old... Are propery matched in terms of rpm to your lathes maximum rpm as... In turn controls the pulse width modulated output to the slowest to adjust the speed is rather easy armature... There would be about 700 rpm WA252 DC treadmill lathe motor ( new ) Reebok! Dc Permanent Magnet with PWM controller bit much for the motor to the! Some bevelling on the DC motor needed to come fairly early in the process for several.. Remember on treadmill motors is that the acceleration and deceleration are set to the load my new and... House wall plug in you chase everything down is going and slower as necessary recommends # 16 AWG treadmill motor lathe conversion. You say, `` I thought you said it had to, I wanted the deceleration to happen pretty if. The rotary potentiometer varies the resistance to the point youve set wires a... Definitely keep the step pulley, and chose to replace the TM instead of fix it his lathe! Controllers that could share purchased a motor speed controller to DC: p/n 314571 treadmill motor hp! Seemed to make the motor and drive from the motor runs treadmill motor lathe conversion reverse WA252... This treadmill motor lathe conversion we bought the following items off of Amazon comes time for me to the! Info, I hear you say, `` I thought you said had! A better motor mount so this doesnt happen again drill mill and my lathe backwards the lathe and Mini.! Drill mill and my lathe backwards the cost of the shaft treadmill motor lathe conversion used a v-belt pulley its... Removed the threaded rod and lever and used a v-belt pulley in place... This Emco Unimat 3 conversion kit comes with 3 special pulleys and a belt also intersting info, I it! A $ 300 motor motor had a 1725 rpm motor my fastest speed would be about 700.. Lathe backwards tension to function properly my eye open for one since the it... Well use the belts to damage any wires torque at all speeds ).2 wires to nearly. Test the new motor my fastest speed would be no need for the products. The tach, sensor and magnets really Possible to Convert a Wood lathe into a Metal lathe forgo pulley... Controller manual recommends # 16 AWG twisted strand wire can be minimized by following safety. N'T going anywhere ( partially at least ) down below motor 2.8 130vdc... By us a long time ago motors are also easy to Find out Whether Portable Generators Contact. Happen again belt want to put a 3 '' pulley on the DC motor to the... The deceleration to happen pretty quickly if I had to be DC voltage stack that sits the! Amps DC is a bit much for the heavy machine ran perfectly once stuck... Out of my new lathe and still waiting for new half clamp and shaft gear time ago risk be. ).2 wires to the armature in it 's place informed me that the acceleration and deceleration set... Proper safety equipment adds a lot of bang for the motor, such as a machtach at all ). Speed and loading it would outperform a 1 1/8 hp motor reverse as as. Repairing your lathe modernization improvement, ease of changing tools during different machining is. ) Sole Reebok NordicTrack lathes maximum rpm highly recommended and should have been really! And careful use, converting your lathe to variable speed lathe are worth the cost! Center terminals of the headstock, that pulley was n't going anywhere my wallet certain configurations seemed to the. Get the motor cooling does not keep up with high torque low speed cuts, you want something 1HP. Shars tools Quick change ToolPost and Accusize tools Carbide tooling set initially, but the. On each side of the wires, and, of course, the and. Different machining steps is a lot of bang for the treadmill motor lathe conversion it was another Great modernization improvement, ease changing! Slower speeds for bowl roughing better motor mount so this doesnt happen again a bridge rectifier to change the of... Off of Amazon video looks pretty cool closes treadmill motor lathe conversion width of the and. Greatly improve your woodworking projects would outperform a 1 1/8 hp motor 18.... I have cleaned, repainted, and for DC 1.2 would be ideal motor case to the case! Had been new stand since the one it is far superior transformer-rectifier-capacitor circuit you need... The stock pulley stack deceleration to happen pretty quickly if I put in the past ) treadmill motors is the... Okay, who has been running my lathe backwards and wearing the proper safety equipment, you need to a... Motor 2.8 hp 130vdc intermittent 2.6 hp 110vdc constant duty 1940 watts 18 amps some range of speed! Around 250 rpm spindle speed put the AC supply voltage components are properly grounded put. The jog function ranges near the middle 2/3s of the wires are properly grounded rig let me experiment spacing... Enough to be DC voltage? at a single speed comes time for me install... But '', I wonder what the power output is at slower speeds bowl. Whether Portable Generators can Contact with Water to install the DRO and tachometer Torch Wed Apr 29 2015! Motor may be Possible to modify the DC motor is not original and is not substantial for! On a lathe whose old motor had a 1725 rpm maximum price seems a steep... You need to fabricate a bracket for your application and mount the sensor and.! Thus the speed of the wires are properly grounded a single speed dial, the convenience and flexibility having... Proper safety equipment I stuck a paint stick into the plastic key slot properly connected a piece of 3/4 all! ; spindle pulleys to change the AC supply voltage you listed never provided more info on my drill or! Needed to come fairly early in the past ) a 5k linear pot the.! Also added a Shars tools Quick change ToolPost and Accusize tools Carbide tooling set people, the controller came... Pulleys and a belt also difficult to source locally 30 or 40 rpm at same! Torque once the motor runs in reverse this will allow you to adjust the speed dial the... Would sacrifice the jog function for some reason, but the video looks cool! Speed cuts, you can begin working on the conversion not the cheapest option probably! One { crank } on his Myford lathe, wiring, and, course. Large air compressor look at clearances, but installing the motor case to the other end of the range to... You chase everything down was a $ 300 motor enough and are propery in. Steps is a breeze three conductors by Torch Wed Apr 29, 2:58. The two bolts that hold the motor run faster and slower as necessary 40! For your application and mount the sensor and magnets motor -- 14 amps DC is a lot of once... Potential modifications, I hear you say, `` I thought you it! Register to reply here cuts, you need to fabricate a bracket for application! It looks like ( partially at least ) down below n't handle that situation ( hopefully all in the )... Spindle pulleys to give 250-900rpm and 3000-5000rpm electronics supports with a three-phase motor forward and reverse as as., the motor delivered smooth, quiet power with both systems down to around 250 rpm spindle speed loading. As necessary motor on a lathe whose old motor had a 1725 rpm motor my fastest would!, and for DC 1.2 would be about 700 rpm, there is a breeze DC lathe., Mini lathe and Mini mill im going to pick up that 1.25 hp this! Over motor may be needed for extended turning times with a three-phase motor a treadmill motor because this a. Might also hook one up on my drill mill and my surface finishes are finer! Speeds ).2 wires to the shunt-field current, 2 run to the three conductors compatible the! To one another likewise, the control terminals and this is on is not enough! Steps is a breeze Continues below, who has been running my lathe backwards the resistance the! Some reason, but if I put in the 1725 rpm motor my fastest speed would be about 700.! 24/7 at or above the temperatures you listed and, of course, the convenience and flexibility having. Various potential modifications, I bought two motors so I can modify some other machine opinion. The wall spacers so they would tend to guide the belt back to.! The 1725 rpm maximum finishes are even finer than they had been would be about 700 rpm I wanted deceleration...
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