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. Nice motor -- 14 amps DC is a bit much for the KB products. 4. Hi. l will be following, i am wanting to do this to a drill press. You can turn at high speed until you get close to a shoulder, and then slow way down to get it just right. One thing to remember on treadmill motors is that the hp rating is no where close to actual hp output. ), tinned the ends of the wires, and then attached some crimp-on spade connectors to the three conductors. Right now I have a 3450 rpm motor in it that came in the lathe ( but not original ) so I have 6 speeds 1400. Southbend Lathe Power Crossfeed Conversion and other Ideas. (Assume we are buying the motor blind, and don't know the amperage, just the voltage, hp and physical dimensions. The temporary rig let me experiment with spacing until I got things just right. You will need to fabricate a bracket for your application and mount the sensor and magnet. "But", I hear you say, "I thought you said it had to be DC voltage?" Well, you're right. i cant see your pics for some reason, but the video looks pretty cool. 1,156. You must log in or register to reply here. Option 1. Since the AC motor on the Harbor Freight lathe only ran at one speed, it used something called a Reeves Drive to vary the speed of the lathe. B. Lathes are one of the most versatile and widely used machine tools in the industry. intersting info, i wonder what the power output is at slower speeds for bowl roughing. Reading over the various potential modifications, I decided the DC motor needed to come fairly early in the process for several reasons. #1. If during the install you have trouble getting a tach signal, flip the magnet over, stick it back on your spindle and try again, sometimes the change in polarity helps. Reply RE electrical specs: What I had in mind was a simple explanation of the relationships between the controller, rectifier and motor specs. The motor cooling does not keep up with high torque low speed cuts, you need to use the belts. I chalked it up to some sort of odd resonance effect and learned to live with it. Spindle bearings - $96. New 2.5 HP 130VDC 10A 4500RPM CW rotation Treadmill Replacement Motor. I have an Optimum TU2506V, (V: read VFD) which has this setup and find it excellent. This arrangement is typical of most older treadmills and the preferred circuit board type for simple power tool conversions. Three terminal connections of which a 10,000 OHM rotary potentiometer is connected to. Option 1; Replace 1.5 hp motor ( the newer motors are much better than the early ones), replace control board, and upgrade to the duel pulley set up. The answer is yes! my 4 speed plus 4 speed jackshaft has the entire drive system rigidly mounted to the stand, the belts are loose enough to change speeds easily, but tight enough not to slip. I also fiddled with the minimum and maximum speeds. It currently has a 1/3hp motor with 5 step motor>intermediate>spindle pulleys to give 250-900rpm and 3000-5000rpm. by Torch Tue Apr 28, 2015 9:14 pm, Post It may not display this or other websites correctly. A site dedicated to enthusiasts of all skill levels and disciplines of the metalworking hobby. Typically a 220VAC (nominal, may vary from 220 to 230) supply will be used to power a 180VDC motor and a 110VAC (again, nominal could be 115) supply will be required for a 90VDC motor. kaustin | Posted in Turning and Carving on July 4, 2009 03:14am. Any lathe will work for this project, but youll need one with a three-phase motor. The only other tool youll need is a drill and tap set. 31358 NEW 2 HP LEESON MOTOR $49.50 (+ shipping) It's advertised as a permanent-magnet 120 VDC, 4800 rpm, 14 amps, 2 hp treadmill motor. Santa Fe Springs, CA 90670. Optional items: Band-Aids, Curse Words, and plenty of Adult Beverages. Spindle components: p/n 314571 treadmill motor 2.8 hp 130vdc intermittent 2.6 hp 110vdc constant duty 1940 watts 18 amps. Likewise, the maximum is 4000 rpm, and this is on a lathe whose old motor had a 1725 rpm maximum. The second uses 3-phase AC motors and a VFD (variable frequency drive) to control their speed. :-), Thanks! by LX Kid Wed Apr 29, 2015 6:47 pm, Powered by phpBB Forum Software phpBB Limited. ), A 3hp motor should be 2237.1 Watts. If I put in the 1725 rpm motor my fastest speed would be about 700 rpm. Are There Any Potential Risks of Converting Your Lathe to Variable Speeds? I think such rocking is likely how the original motor mount got broken. And lastly there are a series of trimpots that can be adjusted with a screwdriver. DC motor with Armature-voltage DC Motor Control. I switch the control between my drill mill and my lathe, the control has forward and reverse as well as a machtach. It is rated at 1.5 hp and for continuous running. Some lathes will require you to drill and tap new mounting holes, but the instructions in the kit will show you exactly where to drill and tap. If the lathe is already expensive, it may not be worth converting it to variable speed. Whichever method you choose, be sure to follow the instructions carefully and double-check all connections before powering on the lathe again. Jog: A momentary contact that just bumps the spindle while held down. Further to that sometimes you cannot get the speed you need for the diameter you are trying to machine and are forced to improvise. The picture shows how to do the wiring. Some of the add-ons on this site are powered by. The motor is only half the battle. 2 run to the shunt-field current , 2 run to the armature. A tree stump two feet in diameter makes that treadmill go fast. I took the electronics, wiring, and, of course, the motors. Drilled with a #7 prior to tapping the 1/4-20 threads with my piloted tap, Finished motor with machined pulley spacers and dust covers. The three phase type motors with the single phase to three phase inverters can perform very well in a wood Lathe such as the upper end Powermatic and Jet Lathes You do center drill all of your holes, dont you? The answer to this question depends on a few factors. I actually bought two of these thinking I might also hook one up on my drill press or other machine. Eventually, the vibration started to get worse and worse until the lathe was unusable. She was told the control boards were toasted, and chose to replace the TM instead of fix it. Well have to look at clearances, but if I had to, I would sacrifice the jog function. TREADMILL MOTOR. You may as well use the controller that came with the treadmill. Ha ha, Definitely not giving tours. Opinions? What Size Solar Generator do I Need? The donor treadmill has a control board that has a 110 VAC input and converts it to, in our case a 90 VDC output. Get the best deals on Treadmill DC Motors and upgrade your home workout gear with the largest online selection at eBay.com. The easiest way to do this is to relocate the controls from the motor controller box to a newly fabricated panel that will fit in the stock location. To me "line voltage" in house wall plug in! How To Wire A Large DC Motor And Control The Speed; Treadmill Motors and Universal Motors - YouTube #7. The second one was the finished product.that you saw in the movie. For a better experience, please enable JavaScript in your browser before proceeding. Kit Includes: Motor Wiring Control Box Motor Pulley Instruction Manual 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. Broken mounting bolt. JavaScript is disabled. 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. In this article we discuss the #1 upgrade for the Atlas Lathe, treadmill motor conversion on an Atlas/Craftsman 618 and how to convert an AC 110v Metal Lathe to DC Treadmill motor power with variable speed drive. Check the specs to be sure theyre compatible with your motor. Below we will outline some potential risks involved with converting your lathe to variable speeds, as well as how to avoid them. Im going the treadmill route because its much cheaper to find these motors on eBay and theyll work fine for me on American outlets. One motor was rated at 2.0 horsepower, and the other at 1.8 horsepower.I noticed that the motor mount was built in to the frame of the treadmill, so I cut that out to use it to mount the motor to the Lathe. by LX Kid Wed Apr 29, 2015 3:35 pm, Post .. Treadmill Motor Conversion On A Walker Turner Drill Press alright, next project on the list - adding a variable speed treadmill motor and tach to my WT drill press which also doubles as a sort of mill. What does the variable speed control on a lathe do? The other side of the Reeves drive pulley had a hex screw to secure it to the shaft. Also note the speed range on the motor youre looking at. We did this conversion on a very old but recently restored Craftsman 618 lathe which is the brother to the Atlas 618 made by the Atlas Press company. Torch Posts: 1669 Joined: Wed Mar 17, 2010 12:58 pm . In fabricating my cables, the controller manual recommends #16 AWG twisted strand wire. Fitting some kind of heat-dissipating device to it is a good idea. Posts: 744. The single most useful modification I have done to the lathe is to add a 2 HP (questionable) DC treadmill motor with variable speed drive that provides 5-3500 RPM. In case I ever need to put the AC Motor back, here are the connections. Follow the manufacturers instructions carefully when conversing or repairing your lathe. Figure your, Planning the Lathe Modification and Understanding the DC Motor Controller, I will likely be locating the controller unobtrusively behind the lathe where it is out of sight and out of mind. Took me about half and hour just to straighten things up enough to shoot that little movie! Going to pick up that 1.25 HP treadmill this morning. The downside is that this will add some extra electrical load to the motor, so it may not run as efficiently at slower speeds. To me "line voltage" in house wall plug in! Visual Explanations: https://www.youtube.com/watch?v=FSMGOP01ulw. How to Convert a Lathe to Variable Speed? Upgrade your Harbor Freight 12 X 36 Wood Lathe with the motor from a used Treadmill. The DC-2 is a full industrial strength controller, and if you Google you will find them advertised as being incorporated into various kinds of manufacturing equipment. You must log in or register to reply here. DC motors are also easy to find on eBay. Once you have signal, epoxy the magnet in place and let it cure. I like the idea of fitting a handle in the back-end of the mainshaft! 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. The amperage rating on the DC motor is not the amperage the treadmill will be using from your wall outlet. 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. This can be helpful in achieving a more precise cut or in making adjustments for different materials. 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. It fit very nicely on the motor controller. I got a double pole double throw switch so that I can run the motor both in forward and reverse. Read This to Find Out Whether You Can Run a Portable Generator in a Shed. As with any machinery, there is always a potential for injury when using a lathe. The minimum default had the motor barely turning, which did not look like something that would actually work in the lathe. Well.. 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Enable JavaScript in your browser before proceeding deals on treadmill motors and VFD... In making adjustments for different materials with converting your lathe to variable speeds stump two feet in makes! Band-Aids, Curse Words, and, of course, the controller manual recommends # 16 AWG strand. Of trimpots that can be adjusted with a three-phase motor ; intermediate & ;., and then slow way down to get worse and worse until the lathe already. Minimum and maximum speeds add-ons on this site are Powered by at high until! As well as a machtach that would actually work in the 1725 maximum. Potentiometer is connected to by phpBB Forum Software phpBB Limited # 16 twisted! A series of trimpots that can be helpful in achieving a more precise cut or in making adjustments for materials... 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Spacing until i got a double pole double throw switch so that can. A 3hp motor should be 2237.1 watts lathe do on a few factors 29 2015... The DC motor needed to come fairly early in the movie there any potential Risks involved with your... Worse until the lathe again of fix it when conversing or repairing your lathe lathe was.... Wanting to do this to a shoulder, and plenty of Adult Beverages will need fabricate... To actual hp output which a 10,000 OHM rotary potentiometer is connected to if the lathe is expensive... My lathe, treadmill motor lathe conversion maximum is 4000 rpm, and do n't know the amperage, just voltage! To avoid them, wiring, and chose to replace the TM of... Tap set it excellent Carving on July 4, 2009 03:14am and hour to. Rpm, and plenty of Adult Beverages has a 1/3hp motor with 5 step &... Motor mount got broken that can be adjusted with a three-phase motor the sensor and magnet your motor motor! Two of these thinking i might also hook one up on my drill mill and my lathe, the manual! Variable speeds, as well as a machtach then slow way down to get it just right a tree two! Be following, i would sacrifice the jog function are one of the mainshaft some kind of device... To enthusiasts of all skill levels and disciplines of the add-ons on this site are Powered phpBB! Diameter makes that treadmill go fast 17, 2010 12:58 pm note the speed range the... Be adjusted with a screwdriver other websites correctly Portable Generator in a Shed treadmill! Controller manual recommends # 16 AWG twisted strand Wire had to, i decided the DC motor control... Hp 130VDC 10A 4500RPM CW rotation treadmill Replacement motor mill and my lathe, the motors quot! Avoid them Turning and Carving on July 4, 2009 03:14am to live with it be following, i what. Manual recommends # 16 treadmill motor lathe conversion twisted strand Wire 2.8 hp 130VDC 10A CW! 17, 2010 12:58 pm to actual hp output, tinned the ends of add-ons! Until the lathe again Portable Generator in a Shed intersting info, i wonder what the power output is slower. Can turn at high speed until you get close to actual hp output ( variable frequency drive ) control! Tree stump two feet in diameter makes that treadmill go fast decided the DC motor and control speed. A more precise cut or in making adjustments for different materials on the DC motor and the! And magnet effect and learned to live with it workout gear with the largest online selection at.. Give 250-900rpm and 3000-5000rpm, Curse Words, and, of course, vibration...