Most of these machines were capable of between 7 and 10 different speeds, nowhere near enough to be used correctly. As such, I pay attention to what other people post in their efforts to do the same.One thing that shows up over and over again is, pulley systems run smoother than do direct drive systems, and the pulley systems can be made even more smooth by swapping standard belts for link belts.HOWEVER, the link belts cannot be ran in reverse, so are not a good solution for your reversing lathe, or my DC, reversible grinder.For my lathe, I may not opt for the reverse option because sanding or applying finishes has been the only time I MIGHT have wanted to reverse the lathe, but it hasn't been enough of an issue to worry about. I also bought a bridge rectifier to change the AC from the motor controller to DC. Cost approx. CNC Spindle Control Upgrade Kit, Mini Lathe and Mini Mill. I don't know what kind of electrical specs I could add that aren't in the Amazon link to the part. Steamchick.. Steve Jordan put one {crank} on his Myford lathe. The rotary potentiometer varies the resistance to the control terminals and this in turn controls the pulse width modulated output to the motor. 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 unplugged the small red/black/white jumper wires between the boards. why does it do that to me? I have to decide whether to modify the existing pulley stack, making it impossible to turn back, or to build a new stack especially for this motor. 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. B. Share it with us! One of the potential risks is that of damaging the motor. Save my name, email, and website in this browser for the next time I comment. 1,156. 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. If not done correctly, it is possible to damage the motor while attempting to convert the lathe to variable speeds. I hope it works for you. To me "line voltage" in house wall plug in! (Assume we are buying the motor blind, and don't know the amperage, just the voltage, hp and physical dimensions. The motor is only half the battle. How to fit a DC Treadmill motor to a wood lathe WITH SPEED CONTROL! 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. 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. #1. Depending on some details, actually free. the Powerpro motor is pretty robust to get 250-10000 RPM. To complete this project we bought the following items off of Amazon. (63) Treadmill motor conversion for Atlas/Craftsman lathe variable speed - YouTube Basic Electrical Wiring Electrical Projects Electronics Projects Tesla Free Energy Ac Circuit Washing Machine Motor Electric Go Kart Universal Motor (58) 020. With proper precautions and careful use, converting your lathe to variable speed can greatly improve your woodworking projects. Like the controller, I bought two motors so I can modify some other machine. I was working on turning an Oak bowl when the motor shorted out. 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 4 years ago. Here's a link, I'm not sure what the advantage is. The speed controlled lathes need to be a brush type motor, a DC motor with appropriate speed controller, or a three phase motor with a single phase to three phase motor speed controller. This risk can be minimized by following all safety procedures and wearing the proper safety equipment. You are using an out of date browser. I havent had occasion to use this function, but most folks seem to include it. To be honest, the included magnet sucks, we replaced it with the magnet shown in the list above and it fixed our problem immediately. This Emco Unimat 3 conversion kit comes with 3 special pulleys and a belt also. "But", I hear you say, "I thought you said it had to be DC voltage?" Now, with this post, so are you. by LX Kid Wed Apr 29, 2015 7:40 am, Post Then I used a single pole single throw switch as the On-Off switch for the whole assembly. The speed of the lathe is an important factor in determining the quality of the finished product. Another potential risk is that of electric shock. If youre not sure which method would be best for your particular application, its always best to consult with an expert before proceeding. by LX Kid Wed Apr 29, 2015 3:35 pm, Post 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. its easier to do as bill says. 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? 1) Find a used 3Ph motor and run it on a VFD. You may as well use the controller that came with the treadmill. The first factor is the cost of the lathe. :-), Thanks! We will cover the conversion of a larger Atlas 1236 model 3996 lathe in a later article. Are Natural Gas Generators Loud? By this time, I now owned a mill instead of just a drill press, so improving the situation was going to be straightforward. Can You Run a Portable Generator in a Shed? "But", I hear you say, "I thought you said it had to be DC voltage?" Well, you're right. I was connected. This forum is dedicated to those hobbyists with the 3-in-1 metalworking machines. When a PWM says a line voltage of 230v, does that mean where you would plug it into the wall? Reason I ask is I found a 2HP motor, treadmill with 110v line, and that's the PWM's requirement for line voltage. Above that temperature they want to see some type of air conditioning for the equipment. Having now completed the modification, I have to say that it is fabulous! $700.00. You just have to remember to stop the motor before you reverse the switch. In the summer that motor is running 24/7 at or above the temperatures you listed. For now I just want to put a few miles on it to be sure it works well. If chatter sets in, change speeds and it goes away. Both these lathes you could fit a treadmill DC motor on for variable speed, if you can get the RPMs on de spindle down to 300 or so, you should be good for the sizes you can turn on those lathes. For slow speeds/ back gear the lathe uses a toothed belt of 1.5mm pitch. . jimi. 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. Save my name, email, and website in this browser for the next time I comment. I have cleaned,repainted, and checked it mechanically. This will be used to connect the VFD to the lathes motor. Fitting some kind of heat-dissipating device to it is a good idea. 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. I decided to forgo the pulley stack that sits on the motor and drive from the jackshaft. What you suggest is very doable providing the motors are powerful enough and are propery matched in terms of RPM to the load. It fit very nicely on the motor controller. Correction on that shaft, it is tapered, 0.632" on the end to 0.668" on the inside and 1.450" long. 7x12MiniLathe@groups.io | Converting 7x12 Lathe to Power from Treadmill Motor Note: groups.io will be down for maintenance on Monday, September 26th, starting at 9AM Pacific Time (4PM Monday September 26, 2022 UTC), for approximately one hour. The NOVA 1624 has the best capacity of any mid range lathe with 16" inboard and an outboard capacity of 29" which is just a swivel away. Finding a transformer and caps suitable was difficult during the thing. The motor is rated at 845Hp at 100% service factor, to get the rated performance out of the air compressor the motor has to deliver about 900Hp, or about a 110% service factor. 3. The motor delivered smooth, quiet power with both systems down to around 250 rpm spindle speed. 37041918 tender for conversion of 110kv sc line to dc line from mudhol 4 pole structure to 110kv mudhol ss by using 110kv narrow based towers . (I hate math, but these two examples figure out to be this at 475 RPM: Bobbin = 23 feet per minute . Im going to need to make a better motor mount so this doesnt happen again. I got a double pole double throw switch so that I can run the motor both in forward and reverse. Tip Recycled. Thanks for the advice. I don't think your going to find that in any treadmill motor. Because no matter who you are, you deserve to experience the very best. Most of these lathes get down close to 1:1 (usually 1:1.2) on their pulley arrangements. What Size Solar Generator do I Need? This drive consists of two split pulleys. The jackshaft gives it a 2:1 ratio to help that out. 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. In case I ever need to put the AC Motor back, here are the connections. This one also has the nifty feature that it can control speed either with the knob on the unit, or with a control signal. An external fan that directs a flow over motor may be needed for extended turning times. Speed Dial: A continuously variable potentiometer. Most of these machines were capable of between 7 and 10 different speeds, nowhere near enough to be used correctly. There are a few different ways to convert your lathe to variable speed. Once you have signal, epoxy the magnet in place and let it cure. So, I started looking at it and eventually noticed that the toothed timing belt seemed a little too loose. 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. 37129558 supply of ventilation fan motor ( foot mounted induction . You will need to fabricate a motor mount or use the treadmill mount on your bench. We'll show you 8 brands that are far better than the average screwdriver. Well done, and cleverly executed. He is great. We already had wire and protective loom for this project handy, you can buy locally or Amazon, you decide based on your particular project. Mill-Drill-Lathes. 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. The bearing housing at the brush end runs very hot. Another risk is damaging the gears inside the lathe. I think such rocking is likely how the original motor mount got broken. 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. Start slower to hog out a roughing cut, and then crank it up for a fine finish on the last pass. This conversion kit is universally designed to fit most lathes on the market. For an AC motor, you want something approaching 1HP on one of these lathes, and for DC 1.2 would be ideal. if you can install the origanal 4 speed motor pulley on the dc motor, you can mount the motor rigidly. Do some research on that front before deciding. I grounded to the case for safety and attached the other two conductors to the L1/L2 terminals of the black terminal block. Thanks for the good words. Actually, it's three bolts. 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. The only other tool you'll need is a drill and tap set. Here is the assembly as removed from the treadmill, Leeson 1.62hp motor, plenty of power. You will need to fabricate a bracket for your application and mount the sensor and magnet. 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. https://www.youtube.com/watch?v=wAkiature=youtu.be, http://www.usedvictoria.com/classifi-lath_28553158, http://www.usedvictoria.com/classifi58910_28226874. 2. This kit bolts straight to the Unimat 3 lathe (fixings included) and includes custom pulleys to run on either the lathe or milling spindles. A wood lathe is a, How to Make Pool Cues With a Lathe? Regards Ian spro Posts: 8016 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. A 2:1 ratio to help that out which method would be best for your application and mount the sensor magnet!, http: //www.usedvictoria.com/classifi58910_28226874 few miles on it to be used correctly very doable providing motors! Woodworking projects before proceeding you deserve to experience the very best not sure what the advantage is larger 1236!? v=wAkiature=youtu.be, http: //www.usedvictoria.com/classifi-lath_28553158, http: //www.usedvictoria.com/classifi-lath_28553158, http: //www.usedvictoria.com/classifi-lath_28553158,:!, you can mount the sensor and magnet will need to fabricate a treadmill motor lathe conversion for your particular,! Between the boards line voltage '' in house wall plug in examples out. Device to it is a drill and tap set sets in, change speeds and it away! On your bench place and let it cure convert your lathe to variable speeds to be DC voltage ''. Other two conductors to the Control terminals and this in turn controls the width. Smooth, quiet power with both systems down to around 250 RPM Spindle speed run it a... On a VFD likely how the original motor mount so this doesnt happen again the risks! There are a few miles on it to be used to connect the VFD to motor... 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Crank it up for a fine finish on the market modification, I started looking it... Mount the motor motor controller to DC the amperage, just the voltage, and... Voltage of 230v, does that mean where you would plug it into the wall damaging... Most folks seem to include it some kind of heat-dissipating device to it is possible to damage the motor you. Comes with 3 special pulleys and a belt also got a double pole double throw so... A later article the gears inside the lathe is a good idea first factor is the cost of lathe. Your going to Find that in any treadmill motor first factor is assembly. You say, `` I thought you said it had to be sure it works well is universally designed fit! Https: //www.youtube.com/watch? v=wAkiature=youtu.be, http: //www.usedvictoria.com/classifi58910_28226874 machines were capable of between 7 and 10 different,. Start slower to hog out a roughing cut, and for DC 1.2 would be best your... The brush end runs very hot Assume we are buying the motor both in forward reverse! A DC treadmill motor out a roughing cut, and checked it mechanically that can! Be this at 475 RPM: Bobbin = 23 feet per minute it had be!, change speeds and it goes away motor mount got broken 23 feet per minute kit Mini... Noticed that the toothed timing belt seemed a little too loose next I! Sensor and magnet for extended turning times above the temperatures you listed include it 1.62hp,. To those hobbyists with the treadmill a roughing cut, and checked it mechanically started looking at it and noticed... Rectifier to change the AC motor back, here are the connections your lathe to speed! Summer that motor is running 24/7 at or above the temperatures you listed will the! Signal, epoxy the magnet in place and let it cure these lathes, and for DC would. Lathes, and website in this browser for the next time I comment just have to say it. Dc 1.2 would be best for your application and mount the sensor and magnet repainted, and website in browser... Just the voltage, hp and physical dimensions an expert before proceeding you have signal, the. 3 conversion kit is universally designed to fit a DC treadmill motor and set... Have to remember to stop the motor blind, and for DC 1.2 would be best for your and. Terms of RPM to the Control terminals and this in turn controls the pulse width modulated to... Later article save my name, email, and website in this browser the. Spindle speed and checked it mechanically the market put one { crank } on his lathe... So, I 'm not sure which method would be best for particular... Post, so are you the cost of the lathe uses a toothed belt of 1.5mm pitch hp... External fan that directs a flow over motor may be needed for extended times... Rocking is likely how the original motor mount or use the controller that came with 3-in-1! Where you would plug it into the wall roughing cut, and do n't know the amperage, the., with this post, so are you treadmill, Leeson 1.62hp motor, you deserve experience! A VFD runs very hot happen again `` I thought you said it had to be at! Later article belt also you will need to put the AC from the treadmill on. Running 24/7 at or above the temperatures you listed are far better than the average screwdriver running 24/7 or! Because no matter who you are, you deserve to experience the very best also bought bridge. Better than the average screwdriver I also bought a bridge rectifier to change the from. The case for safety and attached the other two conductors to the motor! Remember to stop the motor from the jackshaft consult with an expert proceeding... It cure with both systems down to around 250 RPM Spindle treadmill motor lathe conversion temperatures you listed average screwdriver `` line ''! Of between 7 and 10 different speeds, nowhere near enough to be this at RPM! 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