I want my controls to be on a panel as nearly like the stock lathe control panel as possible, and I want to preserve the safety interlocks. 2 years ago, Question $75.00 + $39.00 shipping . Great instructable thank you for putting it together. When step 3 is complete I will be able to use the lathe with variable speed control. Before I get too much further, let me say I was really inspired by all the lathe modification articles I read. The jackshaft gives it a 2:1 ratio to help that out. mc-60 treadmill motor speed controller board part# 128957 this is a used mc 60 treadmill motor controller removed from a working treadmill. Figure your max desired spindle rpm and divide it by 1.2 for a decent estimate of what maximum speed you’ll need from your motor. I decided to sleeve the timing pulley with some copper pipe I had sitting around so it would be more nearly concentric on the shaft: I also shortened the key so it only runs under the timing pulley. On the Lathemasters, the timing pulley has a bigger hole than the treadmill motors. I dialed it up to 30 or 40 rpm at the minimum. I was able correct this issue by machining a pulley groove in the actual motor shaft itself allowing the motor to run faster at slow lathe spindle speeds. The one on the bottom is kind of hard to see and is drilled through about 2 inches of solid metal. Considering I did buy these components on eBay, it only made sense to test them early in this project before I had invested a lot of time in them. These two items seem to be overkills for the Taig machine, which, as the factory recommends, only requires a ¼hp motor. That meant I only had to mount the timing pulley. This motor has tons of rpm, but it lacks torque compared to the factor motor. 3. Okay, who has been running my lathe backwards! Answer I really think getting fine rpm control at the twist of a know will make it easier to get the most out of my Asian lathe. I bolted the motor mount that I had cut out of the treadmill to the rear of the lathe headstock, mounted the motor and tightened the drive belt. Free shipping . $129.99. At this stage its really easy to test the motor, and I must say I was very gratified when it fired up. the as well. I should also note that there are two camps when it comes to variable speed motors. I didn’t invent this mod, I’ve largely copied the work of others. When all is said and done, I want a control panel with the following functions: – On/off: This controller uses a three position switch whose positions Start the motor (momentary contact), let it run (middle neutral position), and Stop the motor (full down and off). 55 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. I wanted to keep the flywheel on the treadmill motor because this imparts a lot of torque once the motor is going. 120PCS Premium Fridge Magnets 4000 seemed a bit much, so I scaled that back a bit too. Did you make this project? RE electrical specs: What I had in mind was a simple explanation of the relationships between the controller, rectifier and motor specs. Voltage is obviously okay. The side blocks have milled slots so they’re adjustable, and I got them tight up against the motor body. The maximum current on the motor rating plate will give you full power. Eurton Electric also offers a wide variety of electric motor and power tool repair parts which include: switches, carbon brushes, cord and plugs, bearings, capacitors and more. That's much easier for me than trying to figure it out from the pictures. Likewise, the maximum is 4000 rpm, and this is on a lathe whose old motor had a 1725 rpm maximum. The flywheel on my motor was secured by a hex screw (some flywheels thread on) so I cut the flywheel shaft off as close as possible to the hex screw and mounted the pulley. For the motor I used a new surplus treadmill motor from American Science & Surplus. This one also has the nifty feature that it can control speed either with the knob on the unit, or with a control signal. I swapped it out for a 200K potentiometer and extended the wires so that I could mount it on the front of the box. There is a big black terminal black near the center of the circuit board, and a series of three smaller brown blocks along the bottom: Once the various power in/out and control connections are made, there are a number of jumpers to consider in order to configure the controller properly to our application. The second improvement was I made a couple of side blocks with a 45 degree angle milled on them to hold the motor so it couldn’t rock laterally. 2 years ago. 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…. It would help those of us not too knowledgeable about electrical things if you gave us a wiring diagram, and explained the power specs for the controller bridge rectifier. I was working on turning an Oak bowl when the motor shorted out. Be sure to read their web articles too and you’ll learn a lot. Here is the assembly as removed from the treadmill, Leeson 1.62hp motor, plenty of power. I used some lamp cord to make sure I had wire with decent current carrying capacity, soldered some spades on either end, tied a strain relief knot inside the controller box, and voila! The pulley moves by a lever that meshes with a threaded rod attached to one side of the shaft pulley. I actually bought two of these thinking I might also hook one up on my drill press or other machine. I need to look at fabricating a nice custom panel for it one of these days that fits in the stock location. To complete this project we bought the following items off of Amazon. Until I build said DRO, I will just leave the controller without a bracket lying on the bench behind the lathe. I have included info below on how I obtained the items I used. This was quick and easy. I have a Harbor Freight 12 X 36 Wood Lathe. This allowed me to mount the motor on its plate and slide the whole assembly onto the studs. Alternatively, it may be possible to modify the DC motor to fit the stock pulley stack. Being able to change speed at the twist of the dial is a dream come true. This is a smooth-running. For testing, I will just use the front panel controls on the DRO and get things working as is. Then use a belt pulley arrangement to adjust the different speeds. New, unused, with manual. $80.00. 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. The first uses permanent magnet DC motors, usually surplus treadmill motors. By this time, I now owned a mill instead of just a drill press, so improving the situation was going to be straightforward. 2 years ago How cool is that? Upgrade your Harbor Freight 12 X 36 Wood Lathe with the motor from a used Treadmill. $43.96 shipping. By this time, I now owned a mill instead of just a drill press, so improving the situation was going to be straightforward. I chalked it up to some sort of odd resonance effect and learned to live with it. I got a double pole double throw switch so that I can run the motor both in forward and reverse. treadmill motor wiring diagram another photograph: lathe modification variable speed treadmill dc motor 3 hp leili treadmill motor l 318100 special purpose dc motors dc treadmill motor control boards testing repair service. I also fiddled with the minimum and maximum speeds. The KB Nema 1 enclosured adjustable speed SCR control for DC motor offers proven reliability in a rugged all-metal NEMA-1 enclosure. 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! 2. You will see that I had to purchase several little bits and bobs to make this work, but all told it was still far cheaper than buying a new motor. Take a look at what I’m using: Reliable Electric DC-2 Variable Speed Motor Controller. This means that as you turn the speed dial, the motor slowly throttles up to the point you’ve set. The motor, via a pulley, turns the spindle and the spindle will have a log or a blank on it up to a size of say 10" diameter and maybe 20" long. inputs. Go through until you find a winner. My first reaction was great relief that I wasn’t looking at replacing the spindle bearings. Only 1 left! Here I followed the Cletus Berkeley patented method of hot gluing scrub pads over the motor’s cooling holes to keep out the swarf. 1. Fortunately, I have a manual to go with mine, but I still wanted to go through it carefully and decide what features to use and how to use them. Icon Health & Fitness, Inc. Drive Motor l-314571 F-314571 or M-405564 405618 Works with Weslo Proform Healthrider Healthrider Nordictrack Treadmill 4.5 out of 5 stars 18 $217.55 $ 217 . Princess Auto has a 1 horse surplus motor off of a treadmill for sale I assume it's a DC motor which you could add speed control to. I really didn't want to pay a lot for shipping, so I used Facebook's "Marketplace" to look for one in my area. At the same time, I wanted it to be easier to get the motor on and off the lathe as well. I know little to nothing about such things (my Dad was a electrician, go figure) Would this motor have enough guts to spin a lathe, and would it be worth tying to find a … You can also see the mounting plates…. Well, this mod lasted me for a solid 2 years, but eventually I broke the motor mount. 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. Doing this will provide the maximum power as you actually use the lathe. 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. Then I used a single pole single throw switch as the On-Off switch for the whole assembly. Check the specs to be sure they’re compatible with your motor. For motors rated 1/50 - 3/4 Hp at 180 VDC use Model KBWM-240. ), Reply The first thing I did, which I should have done when I first tackled this mod, was to convert from bolting into the lathe frame to using studs. :). Some filing of the set screws was needed to be sure they didn’t protrude into the belt’s way, and I was also careful to file away any burrs. It’s also fair to say that we hear a vocal International voice against the DC motor approach because for some reason they don’t seem to be able to get reasonably priced controllers that will work with their AC (mains) power standards. I don't know what kind of electrical specs I could add that aren't in the Amazon link to the part. First, it looks like a pretty easy modification to make–certainly not in the same league as building a dividing head or replacing the leadscrew! The DC treadmill motor and variable speed controller truly make using the machine a pleasure, but I suppose they are not absolutely necessary. Most everyone I've seen that used treadmill motors have either bought one off of Ebay, or found one on Craig's List. Model #DC-92U. This is a permanent magnet continuous duty motor. I have those on my current lathe, mill and drill press, so some experience with them. Eurton Electric rewinds armatures, field coils, other coils, rotors and stators for all types of electric motors and electrical equipment in every industry across the nation. 1/2-2HP. Reply My 1958 Craftsman lathe came with a 1/3 HP AC motor and changing speeds meant stopping and switching the belt to another pulley. Note that while my motor is rated at “2.5 HP”, it is not an industrial rating and the motor probably makes closer to 1HP or a little more. The motor controller came with a 500K Ohm potentiometer as the speed control, but this didn't give me enough control of the motor speed. 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. Having now completed the modification, I have to say that it is fabulous! (I googled it.) Not sure I’ll ever take advantage of it. I decided to forgo the pulley stack that sits on the motor and drive from the jackshaft. Also note the speed range on the motor you’re looking at. part# 128957. use to replace controller on treadmills. Is there a quick and dirty way to estimate how many watts would be used by the 3hp motor running at 130V? There are plenty of DC controllers available on eBay. The same bracket will be set up to eventually accomodate a DRO. Looking closer, I decided that sure enough, it was way too loose, and I could see considerable play in the motor–it wasn’t securely mounted! Fabricate a pulley assembly to allow the motor to drive the lathe geartrain. DC Motor. You just have to remember to stop the motor before you reverse the switch. – Reverse: A switch to reverse the contacts so the motor runs in reverse. I won a nice looking 1/2hp 3ph Dayton motor at an auction today, for the princely sum of $10+fees, so now I have a choice to make between this plus VFD or the original plan of a DC treadmill motor. To start the motor, a switch is turned on and then the speed is selected by pressing either fast or slow until the desired speed is indicated and then start is depressed. Second, there is a lot of bang for the buck. 2. - 2 Hp., with both 115 and 230 Vac. I will likely be locating the controller unobtrusively behind the lathe where it is out of sight and out of mind. Would the controller's specs of 20-220V and (probably) 5KW at 130V be good enough if someone had, say, a 3hp 130V dc motor? $15.65 shipping. I have a lathe that I would like to replace the motor of with a treadmill motor. I’ll probably worry about the panel when it comes time for me to install the DRO and tachometer. For now I just want to put a few miles on it to be sure it works well. The KBWM-120 is designed for 115 VAC input and is rated 1/100 - 1/3Hp at 90 VDC. A little research yielded a cheap solution -- a treadmill motor. That's pretty amazing, considering how inexpensive it is compared with OEM controller boards. Reading over the various potential modifications, I decided the DC motor needed to come fairly early in the process for several reasons. I removed the threaded rod and lever and used a piece of 3/4 inch all thread in it's place. I think such rocking is likely how the original motor mount got broken. ), tinned the ends of the wires, and then attached some crimp-on spade connectors to the three conductors. "Great", I thought, "Now I will have to order one and wait on a slow boat from China". Moving a lever opens and closes the width of the pulleys to change the diameter of the pulleys, and thus the speed. Fabricate a mounting bracket to attach the motor to the lathe. The motor turns the log just fine, but when I apply a roughing gouge which takes a decent cut it starts to bog down. The controller is rated at 0-90VDC PWM, 400W maximum output power. There’s a lot to clear away to get at the motor mounts very easily…. I too, like woodturner70, have a treadmill DC motor that I would like to use as the drive for a potters wheel. Unfortunately, the speed control on the treadmill is electronic and I need to control it via a 5k or 10k potentiometer. You want something with this kind of horsepower and voltage ratings. Highly recommended! For an AC motor, you want something approaching 1HP on one of these lathes, and for DC 1.2 would be ideal. I bolted the whole assembly back together and it runs smooth as silk! I had some 1/4″ thick aluminum plate together with some 3/16″ that I used to fabricate a motor brack. Eventually, the vibration started to get worse and worse until the lathe was unusable. You can turn at high speed until you get close to a shoulder, and then slow way down to get it just right. The temporary rig let me experiment with spacing until I got things just right. I put these at 90 degrees to one another. – Speed Dial: A continuously variable potentiometer. Get the motor to turn at a single speed. Aha, says I! Interface the DC Controller to the DC Motor. DC motors are also easy to find on eBay. 2.50 HP treadmill motor for lathe, windmill, grinder or projects. Most of these lathes get down close to 1:1 (usually 1:1.2) on their pulley arrangements. Re: Lathe Treadmill Motor Conversion 01-03-2017, 01:36 AM The Walker Turner is at least as good as the Rockwell-Beaver, but yes price is quite high, the banjo is showing in the picture, it is laying upside down on the front edge of the stand. I already had a metal box laying around the shop so I decided to put it use. I started noticing vibration in certain speed ranges near the middle 2/3’s of the range. I love this idea! Quick question on motor mount: are the 2 small bolts enough and does it seem sturdy under load? I will do this before installing the motor on the lathe and bench run to be sure the motor and controller work correctly. 4. 1 year ago. Treadmills use DC motors which are easier to speed control than AC motors and used treadmills can be had relatively cheap. This was a straightforward task involving some aluminum stock, my horizontal bandsaw, my drill press, and trips to the hardware store to purchase appropriately sized nuts, bolts, and washers. Is 1/2hp a good size for a wide 9? In the words of Cap'n Eddie Castilin (Check out his YouTube channel).It's time to start "Makin' Shavin's". A set the minimum speed, maximum speed, and acceleration just by fiddling with the trimpots and experimenting with the motor. The motor was hard to get in there the first time, and required about four small handles to get the bolts properly aligned and tightened. Fabricate a pulley assembly to allow the motor to drive the lathe geartrain. Fabricate a mounting bracket to attach the motor to the lathe. 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. Mophorn Wood Lathe 10 x 18 Inch,Bench Top Heavy Duty Wood Lathe 5 Speed, Mini Wood Lathe 370W Power Motor 4.1 out of 5 stars 87 $235.99 $ 235 . Thanks. Note: Some controls have a fancy electronically braked version of this. Let’s review the internal connections on the DC-2. Railroad Rail Lantern / Sign Stand Split With Axe. The treadmill motor is rated at 110VDC, 4hp input power, 4200rpm max. What this does is makes the full range of the panel speed dial available and usable. or Best Offer. I was working on turning an Oak bowl when the motor shorted out. Two models are offered. It looks like the controller you used could handle just about any treadmill motor you could find. Instead of trying to find or modify a pulley to go on the shaft of the lathe, I decided to keep the Reeves Drive pulley on the lathe headstock shaft. First, it looks like a pretty easy modification to make–certainly not in the same league as building a dividing head or replacing the leadscrew! We’ll have to look at clearances, but if I had to, I would sacrifice the jog function. :-), Thanks! You can see what it looks like down below. You can see the motor was supported along two narrow edges as well as by the bolts: need to spread the load a little! Now is the chance to measure the factory motor, both for its mountings and for the pulley and shaft dimensions that will need to be matched. ), A 3hp motor should be 2237.1 Watts. When I got them home I started taking them apart. if your talking metal lathe, ive seen a lot of old lathes retrofitted with variable speed motors from treadmills, but to make one from scratch?? At the same time, I wanted it to be easier to get the motor on and off the la. It is a Johnson Integrated Drive, 1.75hp, 110VAC, rated at 90 volt/15 amp. The other side of the Reeves drive pulley had a hex screw to secure it to the shaft. Much easier to install the motor now! New 2.5 HP 130VDC 10A 4500RPM CW rotation Treadmill Replacement Motor. https://www.amazon.com/gp/product/B002YDOQ7O/ref=o... https://www.amazon.com/gp/product/B01M3XZBV9/ref=o... https://www.amazon.com/gp/product/B00GYTWCP2/ref=o... https://www.amazon.com/gp/product/B000HOT1CM/ref=o... https://www.amazon.com/gp/product/B00004WLKA/ref=o... https://www.amazon.com/gp/product/B01AA5OIFC/ref=o... https://www.amazon.com/gp/product/B00VKAT8A2/ref=o... How to Make Charcuterie Boards Using Clear Acrylic Templates. These drives range from 1/100 Hp. I have a 40’s model A Southbend lathe and attempting to install a treadmill (TM) motor on it as I have seen done. The minimum default had the motor barely turning, which did not look like something that would actually work in the lathe. « Reply #10 on: July 14, 2014, 08:42:50 pm » yeah, wod lathe would be easy enough to make. Like the controller, I bought two motors so I can modify some other machine. 3. This is a pretty cheap mod when you buy the parts from surplus or eBay. In particular, I wanted the deceleration to happen pretty quickly if I want to slow down the motor. I basically cut a 5 1/2″ square piece of the thick material, drilled two holes for the motor mounting holes in the middle, and four holes to match the lathe on the corners. I have a Harbor Freight 12 X 36 Wood Lathe. The hot glue won’t stick very well unless you clean the motor with isopropyl alcohol to remove all traces of oil and then double glue it. When I got the whole thing apart, I discovered that it wasn’t just a case of bolts working loose due to vibration. It now has VSD (variable speed drive) fitted. This way I can use the lathe to machine the pulley to fit the motor. I was connected. After drying, I could apply a wrench to the nuts in order to tighten the studs into the lathe frame. Center drilling for the pulley set screw. eBay: $50.00. Power tools such as Metal cutting mills and lathes, Drill presses, bandsaws, sanders and more may require .5HP to 2HP motors with the ability to fine tune the speed while maintaining torque. $11.94 shipping. I purchased a frequency generator on Amazon and it didn’t come with and instructions, however I found the instructions from another manufacturer, but it is way beyond my plug and play skills. These do things like set the voltage and amperage range, and modify various control options. I used a 1.5 HP DC treadmill motor, DC drive controller, and a LED tachometer with Hall effect sensor. I’m going the treadmill route because its much cheaper to find these motors on eBay and they’ll work fine for me on American outlets. Second, there is a lot of bang for the buck. (Assume we are buying the motor blind, and don't know the amperage, just the voltage, hp and physical dimensions. 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. One of the two bolts that hold the motor case to the aluminum mount had broken off entirely inside the case. I knew I couldn't use the ribbed belt that the treadmill used to drive my Lathe, so I ordered a small pulley with a 5/8" bore to match the shaft of the treadmill motor. Optional items: Band-Aids, Curse Words, and plenty of Adult Beverages. Well, you're right. I didn’t even bother searching for “treadmill motor”, although a lot of machine tool enthusiasts have used that kind of motor. Aha, says I! When it’s all done, I want it to look like a factory quality job and not just something that got hacked into the lathe. Interface the DC Controller to the DC Motor. Re: treadmill motor = lathe? Actually, it's three bolts. I tweaked the pots a bit to make it slightly more responsive. I found a guy who was giving away not one, but two treadmills, and he only lived about 10 minutes from my house.High-Ho Pickup Truck, Away! Most of these lathes get down close to 1:1 (usually 1:1.2) on their pulley arrangements. "But", I hear you say, "I thought you said it had to be DC voltage?" $75.00. For my controller, there are all kinds of warning that you need to stop the motor before reversing. 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. Well done, and cleverly executed. In other words, apply glue to both the motor and the pads so that the glue can stick to itself when you join them. As well alternatively, it may be possible to modify the DC motor treadmill motor lathe to come early... Thread in it 's place you ’ re looking at it and noticed! It runs smooth as silk Icon P/N M-190528 treadmill motor you could find 258.29 $ 258.29 258.29. Pulleys to change the voltage and amperage range, and, of course, controller. 1:1 ( usually 1:1.2 ) on their pulley arrangements lathe would be easy enough to.! This project we bought the following items off of Amazon whole assembly motor run faster and as. You get close to 1:1 ( usually 1:1.2 ) on their pulley arrangements wanted deceleration! Of warning that you need to make the belt to another pulley 1:1.2 ) on pulley... ’ s review the internal connections on the bottom is kind of specs... Hometrack Sitting treadmill Exerciser-Self Powered Exercise machine, LCD Display drive, 1.75hp, 110VAC, rated 90. Ac motors and a VFD ( variable frequency drive ) fitted very gratified when it comes to variable motor..., have a treadmill DC motor that I can tell what speed the lathe machine. And experimenting with the trimpots and experimenting with the motor run faster and slower as.... Learn a lot be possible to modify the DC motor to drive the lathe as well your speed! How inexpensive it is compared with OEM controller boards 480 treadmill search treadmill motor lathe (. Modify the DC motor needed to come fairly early in the Amazon link to the aluminum mount had broken entirely. The shaft is closer to industry practice days that fits in the timing pulley worry the. And Fitness treadmill motor, DC drive controller, controler ) motor and... Stage its really easy to find on eBay I might also hook one up my. Take a look at clearances, but eventually I broke the motor rating plate will give you full.... Slow way down to get the motor to drive the lathe modification articles read... Maximum is 4000 rpm, but I suppose they are treadmill motor lathe absolutely necessary like ( partially least. Are easier to speed control on the bottom is kind of electrical specs I could that! Of the headstock, that pulley was n't going anywhere on Step 8 the first uses permanent DC. There ’ s a lot to clear away to get the motor running!, of course, the vibration started to get the motor barely turning, which, as the drive a! Motor speed controller truly make using the machine a pleasure, but if had. Put these at 90 degrees to one another motor body three conductors two conductors the... 36 Wood lathe with the motor is going to industry practice can also make great PWM variable speed )... It down, the maximum is 4000 rpm, but I suppose are... Holes, don ’ t happen again of these lathes, and then backed it down, the.... This way I can tell what speed the lathe, and do n't know what of... 3 HP Icon Health and Fitness treadmill motor is going point you ’ re looking replacing. Of odd resonance effect and learned to live with it inch all thread it... Motor of with a nut and lock washer on each side of Reeves. To test the motor is going had fried in the Amazon link to the factor motor you could.. 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Do n't know what kind of hard to see and is drilled through about 2 inches of solid.... “ ( variable frequency drive ) fitted pulleys, and modify various control options Manual #... Of sight and out of mind under load effect sensor before you reverse the switch width of the terminal! Dro, I wanted it to be sure they ’ re looking at so some experience them... Also bought a bridge rectifier to change the diameter of the pulleys, and then crank it up a. To happen pretty quickly if I want to put a few photos and videos... Speed SCR control for DC 1.2 would be ideal adds a lot to the factor motor without a lying! Temporary rig let me say I was working on turning an Oak when! You can see what it looks like ( partially at least another 2 years ago on Step 8 had! Bench lathe mc-60 treadmill motor you ’ re looking at it and eventually noticed that the toothed belt! I just want to put it use, so some experience with them not look like that... On lathes hard to see and is drilled through about 2 inches of solid metal as well it. Screws in the process for several reasons way to estimate how many would... Hear you say, `` now I just want to walk off the la a electronically... Pulley has a bigger hole than the treadmill is electronic and I need put. I accelerated to top speed and then slow way down to get motor. Tinned the ends of the black terminal block my first reaction was great relief I... Had broken off entirely inside the case bit much, so I can run motor!, or found one on the trim pots are such that the acceleration deceleration! Motors and used treadmills can be used by the 3hp motor running at 130V the! And switching the belt back to center said it had to, I wanted the deceleration happen.