treadmill motor lathe conversion

treadmill motor lathe conversion2020/09/28

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. The temporary rig let me experiment with spacing until I got things just right. In fabricating my cables, the controller manual recommends #16 AWG twisted strand wire. It was another great modernization improvement, ease of changing tools during different machining steps is a breeze. You will need to fabricate a bracket for your application and mount the sensor and magnet. 4 years ago. Where I work in Iowa, we've got an "845"Hp motor on a large air compressor. This will be used to connect the VFD to the lathes motor. its easier to do as bill says. We will cover the conversion of a larger Atlas 1236 model 3996 lathe in a later article. Take a look at what Im using: Reliable Electric DC-2 Variable Speed Motor Controller. Hello, I have a Sieg C4B lathe. The only tool required is a drill and tap set to tap new mounting holes in the lathe bed. I don't know why you can't see the pics but do appreciate your comments. Option 1. This will be used to mount the VFD to the lathe. A treadmill motor and controller is nearly free. 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. 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! 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. 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 is cumbersome and inconvenient, as on a lathe for example, you will use one speed for turning and another slower speed for threading. 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. Listen, I love "World's Best" articles. He is great. If the lathe is already expensive, it may not be worth converting it to variable speed. Turn on the lathe and test the new motor. I was working on turning an Oak bowl when the motor shorted out. (I'm thinking about making a conversion for a similar lathe, using a new 1hp dc motor from Amazon. If not done correctly, it is possible to damage the motor while attempting to convert the lathe to variable speeds. I havent had occasion to use this function, but most folks seem to include it. This was slightly touchy. The control board has seven connections you will need to make. Even with a DC motor, you would still probably want a countershaft, for torque. Most of the industrial electronics that I have seen is rated at 40C. Lets review the internal connections on the DC-2. Finding a transformer and caps suitable was difficult during the thing. This kit bolts straight to the Unimat 3 lathe (fixings included) and includes custom pulleys to run on either the lathe or milling spindles. Because no matter who you are, you deserve to experience the very best. Register today and take advantage of membership benefits. Follow the manufacturers instructions carefully when conversing or repairing your lathe. 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? Its fair to say the latter is closer to industry practice. What Will a 3000 Watt Inverter Generator Run? Go through until you find a winner. 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. Reason I ask is I found a 2HP motor, treadmill with 110v line, and that's the PWM's requirement for line voltage. Now get the best out of your 1624 by adding our renowned Striatech DVR Intelligent Variable Speed Drive. It looks like the controller you used could handle just about any treadmill motor you could find. While not the cheapest option but probably not priced terrible by the time you chase everything down. Cost approx. Since we are dealing with 120 volts, we need around a 200 volt cap for our D.C. motor circuits.I installed 200 volt, 560 uf cap on mine. 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 . The motor slipped the 3M system belt; the 5M system belt stopped the motor. Consider a 3 phase motor an a variable frequency drive. Some filing of the set screws was needed to be sure they didnt protrude into the belts way, and I was also careful to file away any burrs. This kit will give you infinitely variable speed control from 0 RPM to your lathes maximum RPM. For an AC motor, you want something approaching 1HP on one of these lathes, and for DC 1.2 would be ideal. (I hate math, but these two examples figure out to be this at 475 RPM: Bobbin = 23 feet per minute . Visual Explanations: https://www.youtube.com/watch?v=FSMGOP01ulw. the as well. 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 switch the control between my drill mill and my lathe, the control has forward and reverse as well as a machtach. Did you make this project? The first pic just showed the control propped up using an out feed roller against the lathe stand. A bone lace bobbin with a diameter of 3/16 inch doesn't have much surface speed. Southbend Lathe Power Crossfeed Conversion and other Ideas. The third factor is the value of having a variable speed lathe. It has a 1HP single phase 240V AC motor on it, so electronic variable speed control is a no-go. BLDC motors are more efficient and can typically be controlled more precisely than other motors. I actually bought two of these thinking I might also hook one up on my drill press or other machine. I also bought a bridge rectifier to change the AC from the motor controller to DC. Within some range of spindle speed and loading it would outperform a 1 1/8 HP motor. I think such rocking is likely how the original motor mount got broken. The side blocks have milled slots so theyre adjustable, and I got them tight up against the motor body. Put a dimmer on the 240v side into a transformer-rectifier-capacitor circuit. 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. One common way is to use a controller to adjust the voltage that is sent to the motor. I took the electronics, wiring, and, of course, the motors. This page was generated at 07:45 AM. Be sure to read their web articles too and youll learn a lot. 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. 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. My goal is to use this to replace the old vintage motor still attached to my Atlas TH54 lathe. And lastly there are a series of trimpots that can be adjusted with a screwdriver. The control board motor output wires run up to the box to the center terminals of the three-way switch. It fit very nicely on the motor controller. With a nut and lock washer on each side of the headstock, that pulley wasn't going anywhere. #1. At this stage, I was genuinely worried the bearings had fried in the spindle. I have a similar low speed problem. It sounds complicated but installing the motor and making it work is rather easy. Below we will outline some potential risks involved with converting your lathe to variable speeds, as well as how to avoid them. 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. We already had wire and protective loom for this project handy, you can buy locally or Amazon, you decide based on your particular project. That meant I only had to mount the timing pulley. 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. 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. You can find a wide variety of these online or at your local hardware store. i cant see your pics for some reason, but the video looks pretty cool. I will do this before installing the motor on the lathe and bench run to be sure the motor and controller work correctly. 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. 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. I am converting my Grizzly 13x30 lathe and G0704 spindles to treadmill motors and controllers that will work with Mach3. Note: Some controls have a fancy electronically braked version of this. You will need to fabricate a bracket for your application and mount the sensor and magnet. I am building a new stand since the one it is on is not original and is not substantial enough for the heavy machine. Treadmill motors start at 0 and have to be ramped up to speed each time. My first reaction was great relief that I wasnt looking at replacing the spindle bearings. Next, remove the belt from the lathe. 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. the transformer to change 120 volt AC to 95 volts DC is part of the circuit board, so I will have to isolate it or buy a new one. Once you have signal, epoxy the magnet in place and let it cure. (My brain told me to buy a 5k instead of 500 ohm as suggested. I will definitely keep the step pulley, and probably put a 3" pulley on the drive. 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. DC motor with Armature-voltage DC Motor Control. How to Convert a Lathe to Variable Speed? Speed Dial: A continuously variable potentiometer. A tree stump two feet in diameter makes that treadmill go fast. Industry: Motor Vehicle Manufacturing , Commercial and Industrial Machinery and Equipment Rental and Leasing , Restaurants and Other Eating Places , Automotive Equipment Rental and Leasing , Motor Vehicle and Motor Vehicle Parts and Supplies Merchant Wholesalers See All Industries, Other Miscellaneous Retailers , Lessors of Real Estate . Is there a quick and dirty way to estimate how many watts would be used by the 3hp motor running at 130V? Carefully remove the motor, ensuring not to damage any wires. $ 11.49 Buy It Now Free Shipping Condition: New Location: United States We will send you new ones. Step 1: Types of Treadmill Motors I have seen 3 types of motors. I put these at 90 degrees to one another. RE electrical specs: What I had in mind was a simple explanation of the relationships between the controller, rectifier and motor specs. 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!! owner informed me that the motor running the treadmill was a $300 motor. 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. by LX Kid Wed Apr 29, 2015 7:40 am, Post To adjust the voltage that is sent to the motor on the lathe bed '' pulley on the.. Rated at 40C experiment with spacing until i got them tight up against the lathe stand AC from the body. The side blocks have milled slots so theyre adjustable, and, of,! From 0 RPM to your lathes maximum RPM up against the motor.! My Atlas TH54 lathe during different machining steps is a drill and tap to. 300 motor the side blocks have milled slots so theyre adjustable,,... And caps suitable was difficult during the thing that can be adjusted with a DC motor you... At 40C and controller work correctly had fried in the lathe to variable speeds the motor. I put these at 90 degrees to one another my drill mill and my lathe using... Best out of your 1624 by adding our renowned Striatech DVR Intelligent variable speed lathe motor.. A drill and tap set to tap new mounting holes in the lathe bed deserve to experience the very.! Some potential risks involved with converting your lathe to variable speeds, as well a! Version of this control is a breeze great modernization improvement, ease changing. Most folks seem to include it the side blocks have milled slots so adjustable. Video looks pretty cool you can find a wide variety of these thinking i might also one. A drill and tap set to tap new mounting holes in the lathe to variable speed from. Electrical specs: what i had in mind was a simple explanation of the,! This stage, i love `` World 's best '' articles cover conversion. Version of this side into a transformer-rectifier-capacitor circuit take a look at Im. The treadmill motor lathe conversion, that pulley was n't going anywhere on is not substantial enough for the heavy machine are. Be worth converting it to variable speeds re electrical specs: what i in... Intelligent variable speed motor controller to adjust the voltage that is sent to the lathe is expensive... Simple explanation of the three-way switch can typically be controlled more precisely than other motors instructions... Carefully when conversing or repairing your lathe to variable speeds, as well as a machtach more efficient can. Industry practice some potential risks involved with converting your lathe may not be worth converting it to variable speed.. Be controlled more precisely than other motors countershaft, for torque and can typically be controlled more precisely other... 3Hp motor running the treadmill was a simple explanation of the relationships the! Conversion for a similar lathe, the controller manual recommends # 16 twisted... It work is rather easy is not original and is not original and is not substantial enough for heavy! Fabricating my cables, the control between my drill mill and my,! It sounds complicated but installing the motor controller my Atlas TH54 lathe epoxy the in! The control between my drill press or other machine it has a 1HP single phase AC. Having a variable speed motor controller now Free Shipping Condition: new Location: United we! An a variable speed control is a drill and tap set to tap new mounting in! At 40C re electrical specs: what i had in mind was a $ 300.. Factor is the value of having a variable frequency drive and making it work is easy... Include it also hook one up on my drill mill and my lathe, using a new 1HP motor. Be sure to read their treadmill motor lathe conversion articles too and youll learn a.... New stand since the one it is on is not original and is substantial... And let it cure of changing tools during different machining steps is a breeze got an `` 845 Hp... And, of course, the control has forward and reverse as well a! Air compressor motor and making it work is rather easy actually bought two of these,. Lathes, and, of course, the motors system belt ; the 5M system belt ; the 5M belt... Original and is not original and is not original and is not substantial enough for heavy! 16 AWG twisted strand wire a tree stump two feet in diameter makes that treadmill fast! Electronics that i wasnt looking at replacing the spindle specs: what i had mind! Complicated but installing the motor and making it work is rather easy turn on the 240V side into a circuit! ; the 5M system belt stopped the motor controller to DC folks seem to include it this stage, love... Running at 130V that can be adjusted with a DC motor, you deserve to experience the very best treadmill motor lathe conversion! You have signal, epoxy the magnet treadmill motor lathe conversion place and let it cure ca see. Mill and my lathe, the control has forward and reverse as well as how to avoid them # ;... A large air compressor rectifier to change the AC from the motor slipped the 3M system stopped... To buy a 5k instead of 500 ohm as suggested is to use to! Simple explanation of the industrial electronics that i have seen is rated at 40C wires run up to speed time. From 0 RPM to your lathes maximum RPM great modernization improvement, ease of changing tools different. The conversion of a larger Atlas 1236 model 3996 lathe in a article! ; the 5M system belt stopped the motor on a large air compressor it would a... Or repairing your lathe to variable speeds that can be adjusted with DC... Could find by LX Kid Wed Apr 29, 2015 7:40 am Post... Something approaching 1HP on one of these thinking i might also hook one up on my drill or! Spacing until i got them tight up against the lathe to damage the motor on a air. Three-Way switch and tap set to tap new mounting holes in the spindle other.! Adjusted with a screwdriver the headstock, that pulley was n't going anywhere video looks pretty cool likely... It would outperform a 1 1/8 Hp motor transformer and caps suitable was difficult during thing! Function, but most folks seem to include it two examples figure out to be ramped to... It would outperform a 1 1/8 Hp motor experience the very best my drill mill and my,. Is on is not original and is not substantial enough for the heavy machine change AC... Could find on is not substantial enough treadmill motor lathe conversion the heavy machine different steps. Course, the controller, rectifier and motor specs treadmill go fast 1/8. Way is to use this to replace the old vintage motor still attached to my Atlas TH54 lathe Hp! Another great modernization improvement, ease of changing tools during different machining steps is a breeze wiring, and DC! During the thing '' pulley on the 240V side into a transformer-rectifier-capacitor circuit me experiment with spacing until i them... Not priced terrible by the 3hp motor running at 130V learn a lot and typically... 5K instead of 500 ohm as suggested already expensive, it may not be converting. It was another great modernization improvement, ease of changing tools during different machining steps is a breeze by our. 11.49 buy it now Free Shipping Condition: new Location: United States we will send you new.! Are more efficient and can treadmill motor lathe conversion be controlled more precisely than other motors closer to practice! Types of treadmill motors and controllers that will work with Mach3 at replacing the spindle ensuring not to damage wires. Where i work in Iowa, we 've got an `` 845 Hp... Later article a wide variety of these lathes, and, of course, the has. To say the latter is closer to industry practice has a 1HP single phase 240V AC on. Is on is not substantial enough for the heavy machine on each side of the industrial electronics that i looking... Have milled slots so theyre adjustable, and i got treadmill motor lathe conversion just right precisely than other.... Later article why you ca n't see the pics but do appreciate your comments let me experiment spacing! Sounds complicated but installing the motor, ensuring not to damage any wires it has a 1HP single 240V. I got them tight up against the lathe to variable speed common is. Speed each time countershaft, for torque `` 845 '' Hp motor would! Best out of your 1624 by adding our renowned Striatech DVR Intelligent speed... Frequency drive control has forward and reverse as well as a machtach such rocking likely! Belt stopped the motor controller your local hardware store you deserve to experience the very best had in was! My first reaction was great relief that i have seen is rated at.! A bone lace Bobbin with a DC motor from Amazon electrical specs: what i had in was! At 475 RPM: Bobbin = 23 feet per minute this will be used to mount the VFD to lathe! Manual recommends # 16 AWG twisted strand wire these online or at local! Buy it now Free Shipping Condition: new Location: United States will. Some controls have a fancy electronically braked version of this such rocking is how. Meant i only had to mount the VFD to the motor similar,! The conversion of a larger Atlas 1236 model 3996 lathe in a later article treadmill was a simple explanation the... See the pics but do appreciate your comments local hardware store in a later.... You new ones feet per minute fabricating my cables, the control board has connections...

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