"But", I hear you say, "I thought you said it had to be DC voltage?" ix. 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. 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 speed of the lathe is an important factor in determining the quality of the finished product. 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. The maximum current on the motor rating plate will give you full power. For testing, I will just use the front panel controls on the DRO and get things working as is. Full Sized Railroading! :). Tips, techniques, modification and use of these machines is topical. It's also very fast at 4900rpm your old motor was 1440, other that it should work OK. Black is not a colour ! Post By this time, I now owned a mill instead of just a drill press, so improving the situation was going to be straightforward. That's much easier for me than trying to figure it out from the pictures. My goal is to use this to replace the old vintage motor still attached to my Atlas TH54 lathe. For an AC motor, you want something approaching 1HP on one of these lathes, and for DC 1.2 would be ideal. 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. This was slightly touchy. 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. It ran perfectly once I stuck a paint stick into the plastic key slot. Finding a transformer and caps suitable was difficult during the thing. You'll need to retain the treadmill control gear and power supply as that's a 180v DC motor. 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. Great instructable thank you for putting it together. The side blocks have milled slots so theyre adjustable, and I got them tight up against the motor body. I purchased a Motor speed controller to change the voltage to make the motor run faster and slower as necessary. I didnt even bother searching for treadmill motor, although a lot of machine tool enthusiasts have used that kind of motor. Certain configurations seemed to make the belt want to walk off the end. Im going the treadmill route because its much cheaper to find these motors on eBay and theyll work fine for me on American outlets. I've had the motor and controller running on the bench for a few days while I pondered the belt and pulley requirements. Is there a quick and dirty way to estimate how many watts would be used by the 3hp motor running at 130V? 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 . This was quick and easy. TREADMILL MOTOR. To complete this project we bought the following items off of Amazon. Is Converting a Lathe to Variable Speed Cheaper Than Purchasing a Lathe Comes with Speed Controls? What do you think about it? New, unused, with manual.eBay: $50.00. Also note the speed range on the motor youre looking at. Yes, line voltage refers to the AC supply voltage. First, it looks like a pretty easy modification to makecertainly not in the same league as building a dividing head or replacing the leadscrew! Hello, I have a Sieg C4B lathe. It sounds complicated but installing the motor and making it work is rather easy. In their place I used jumper wires to a 5k linear pot. Aha, says I! Dec 18, 2016. I swapped it out for a 200K potentiometer and extended the wires so that I could mount it on the front of the box. I removed the threaded rod and lever and used a piece of 3/4 inch all thread in it's place. 4000 seemed a bit much, so I scaled that back a bit too. Another potential risk is that of electric shock. 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. Two of the connections are from your 110VAC source to supply power to the board, and finally two more output connections from the board to the directional switch. What Will a 3000 Watt Inverter Generator Run? 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. I tweaked the pots a bit to make it slightly more responsive. kaustin | Posted in Turning and Carving on July 4, 2009 03:14am. Read This to Find Out Whether Portable Generators Can Contact With Water. The pic below shows the latest setup. This walks through my entire setup and show all the parts and modifications necessary to put a treadmill motor on a metal lathe.20K potentiometer https://amzn.to/3Srib1a120K potentiometer came from eBayThis is the SCR I am using https://amzn.to/3IQAVTL If you are not in a hurry one can be had from eBay for about 2/3 the cost but could take several months to ship.This is the rectifier I am using https://amzn.to/3GjVCao You must log in or register to reply here. 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. Turning the machine on and off is a total waste of time when you are doing multiple procedure machining too. First, unscrew the mounting bolts that hold the old motor in place. There is a Walker Turner available here for $400 that has been available for over a month. Can You Run a Portable Generator in a Shed? The only other tool youll need is a drill and tap set. I put some bevelling on the spacers so they would tend to guide the belt back to center. I have been looking at options, and there are a few routes to go with this. Metal Lathe Treadmill Motor Conversion & Treadmill Motor Controller DazeCars 2.88K subscribers Subscribe 5.9K views 6 months ago I realized with all the videos I have done I never. To me "line voltage" in house wall plug in! New 2.5 HP 130VDC 10A 4500RPM CW rotation Treadmill Replacement Motor. (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? Youll need one thats compatible with the motor on your lathe. Southbend Lathe Power Crossfeed Conversion and other Ideas. I have a Delta-Rockwell 46-12 wood lathe purchased on Craig List for $400. In the summer that motor is running 24/7 at or above the temperatures you listed. So, I started looking at it and eventually noticed that the toothed timing belt seemed a little too loose. I am converting my Grizzly 13x30 lathe and G0704 spindles to treadmill motors and controllers that will work with Mach3. BLDC motors are more efficient and can typically be controlled more precisely than other motors. So I need to keep that V spacing in mind. $279.95. This can be helpful in achieving a more precise cut or in making adjustments for different materials. You want something with this kind of horsepower and voltage ratings. Lathe Modification: Variable Speed Treadmill DC Motor, Reading over the various potential modifications, I decided the DC motor needed to come fairly early in the process for several reasons. The serpentine V spacing on it is 0.092" while the V spacing on a typical US serpentine belt is 0.145". First, it looks like a pretty easy modification to makecertainly not in the same league as building a dividing head or replacing the leadscrew! Thanks Torch! Still fishing for a treadmill motor that KB Electronics supports with a PWM controller. You can find a treadmill motor kit at your local hardware store. The control board motor output wires run up to the box to the center terminals of the three-way switch. Top. by LX Kid Tue Apr 28, 2015 8:47 am, Post This kit is designed as a drop-in replacement for the original lead screw and pulley system on your lathe. Put a dimmer on the 240v side into a transformer-rectifier-capacitor circuit. 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. Reading over the various potential modifications, I decided the DC motor needed to come fairly early in the process for several reasons. - with a simple disconnect for when I don't need it? 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. If you google images of 9" South Bend, you'll see what I mean. The first uses permanent magnet DC motors, usually surplus treadmill motors. 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: Wiring for Start/Stop/Jog uses these three: 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 answer is yes! That turned out to be a non issue. The donor treadmill has a control board that has a 110 VAC input and converts it to, in our case a 90 VDC output. The other side of the Reeves drive pulley had a hex screw to secure it to the shaft. I have a similar low speed problem. A tree stump two feet in diameter makes that treadmill go fast. This forum is dedicated to those hobbyists with the 3-in-1 metalworking machines. the as well. 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 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). by Torch Tue Apr 28, 2015 9:14 pm, Post 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. $523.00 Option 2; Upgrade to a the new 2 hp brush less motor with controller. Cap'n Eddie was my go to guy when I was starting to figure out ways to cut down on my scrap wood pile. This conversion is absolutely awesome and highly recommended and should have been done by us a long time ago. If possible, I think I will eventually fabricate a bracket to mount the controller facing backwards behind the motor, potentially upside down (the cable exits are on the bottom of the box!). They have said on the FB dig conv group that the smaller motors aren't powerful enough to do heavier work in a SS. There are plenty of DC controllers available on eBay. Just wanted you to know you're appreciated. Lets review the internal connections on the DC-2. Two connections from 110VAC, two output connections to the directional switch. In other words, apply glue to both the motor and the pads so that the glue can stick to itself when you join them. @jimil. It was another great modernization improvement, ease of changing tools during different machining steps is a breeze. One warning about variable speed. Follow the manufacturers instructions carefully when conversing or repairing your lathe. Answer Quick question on motor mount: are the 2 small bolts enough and does it seem sturdy under load? I'm not familiar with either the treadmill controller or the the e-bike but speed/load regulation is a concern - if you set the lathe for a speed and then apply a cutting load, how does it handle that? Read This to Find Out Whether You Can Run a Portable Generator in a Shed. ;)I fell in love with variable speed motors long ago. 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. 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. It fit very nicely on the motor controller. I bolted the whole assembly back together and it runs smooth as silk! On the motor tag it says 3350 rpm, but when I put my tach on it, I can get 2925 in one direction and 2900 in the other. 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! 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. Option 1. Treadmill motor with KBIC drive, not vfd, but you must leave the pulleys and belts to allow the motor to run at enough speed to provide the horsepower needed for slow speed deep cuts and drilling operations. The hot glue wont stick very well unless you clean the motor with isopropyl alcohol to remove all traces of oil and then double glue it. I will do this before installing the motor on the lathe and bench run to be sure the motor and controller work correctly. (My brain told me to buy a 5k instead of 500 ohm as suggested. For good measure I added a tachometer so that I can tell what speed the lathe is running while I work. In case I ever need to put the AC Motor back, here are the connections. Hi. Next, remove the belt from the lathe. Provides speed, on/off, and direction control. Correction on that shaft, it is tapered, 0.632" on the end to 0.668" on the inside and 1.450" long. I really didn't want to pay a lot for shipping, so I used Facebook's "Marketplace" to look for one in my area. Not sure that my equipment can handle it. At ~$122.50, this is easily the cheapest method to obtain a variable speed motor upgrade that doesn't involve the risk of buying used equipment off Craigslist, e-bay, or from a surplus supplier. It is similar in size to Sieg SC4 lathe but it has a AC reversible motor and belt and pulley system for speed control. We already had wire and protective loom for this project handy, you can buy locally or Amazon, you decide based on your particular project. today was the day. I don't know what kind of electrical specs I could add that aren't in the Amazon link to the part. CNC Spindle Control Upgrade Kit, Mini Lathe and Mini Mill. Things You Should Consider When Planning on Buying a Solar Generator. Too, there is that the lathe model has the motor positioned where it limits some turning operations. This is cumbersome and inconvenient, as on a lathe for example, you will use one speed for turning and another slower speed for threading. Cost approx. I don't know why you can't see the pics but do appreciate your comments. 1 year ago. 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 I did a search on (variable, controller, controler) motor and bid on this one.