My second was a touch of annoyance. Well.. Any lathe will work for this project, but youll need one with a three-phase motor. 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. It currently has a 1/3hp motor with 5 step motor>intermediate>spindle pulleys to give 250-900rpm and 3000-5000rpm. https://www.youtube.com/watch?v=wAkiature=youtu.be, http://www.usedvictoria.com/classifi-lath_28553158, http://www.usedvictoria.com/classifi58910_28226874. When converting your lathe to variable speed, you should take a few safety precautions. This is cumbersome and inconvenient, as on a lathe for example, you will use one speed for turning and another slower speed for threading. It's also very fast at 4900rpm your old motor was 1440, other that it should work OK. Black is not a colour ! Can you put a speed control on a PSC motor? Spindle bearings - $96. For slow speeds/ back gear the lathe uses a toothed belt of 1.5mm pitch. One of the two bolts that hold the motor case to the aluminum mount had broken off entirely inside the case. Most of these lathes get down close to 1:1 (usually 1:1.2) on their pulley arrangements. 4. 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. Look around for an old treadmill. 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. More products like this. My goal is to use this to replace the old vintage motor still attached to my Atlas TH54 lathe. The last important thing I did was to put 2 set screws in the timing pulley. [email protected] Topics Converting 7x12 Lathe to Power from Treadmill Motor Date 1 - 5 of 5 Visual Explanations: https://youtu.be/NZdQ8bBhErk. Register today and take advantage of membership benefits. I am building a new stand since the one it is on is not original and is not substantial enough for the heavy machine. Comnpatible with SIEG SC2 and HiTorque mini lathes. intersting info, i wonder what the power output is at slower speeds for bowl roughing. Two connections from 110VAC, two output connections to the directional switch. Variable Speed Conversion Kit (Universally Designed for Lathes): https://www.youtube.com/watch?v=FSMGOP01ulw, https://www.youtube.com/watch?v=ZFVuJ0hwNnw&t=194s. Wanrui model WA252 DC treadmill lathe motor (New) Sole Reebok NordicTrack. Pacific Scientific. 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 . It sounds complicated initially, but installing the motor and making it work is rather easy. Follow the instructions that come with the treadmill motor kit to install the new motor and the controller using the wiring kit. 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. Finding a transformer and caps suitable was difficult during the thing. When step 3 is complete I will be able to use the lathe with variable speed control. .. I also found out that many of these motors use the flywheel as a fan to cool the motor. I don't see pics either. #7. Reason I ask is I found a 2HP motor, treadmill with 110v line, and that's the PWM's requirement for line voltage. 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 rotary potentiometer varies the resistance to the control terminals and this in turn controls the pulse width modulated output to the motor. So I scored a free treadmill recently. Mill-Drill-Lathes. Regards Ian spro Posts: 8016 One common way is to use a controller to adjust the voltage that is sent to the motor. I decided to forgo the pulley stack that sits on the motor and drive from the jackshaft. I hope it works for you. 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 plan is to replace the existing motor on my lathe with this one. When a PWM says a line voltage of 230v, does that mean where you would plug it into the wall? Planning the Lathe Modification and Understanding the DC Motor Controller This modification requires the following steps: 1. . How To Wire A Large DC Motor And Control The Speed; Treadmill Motors and Universal Motors - YouTube Once you have converted your lathe to variable speed, be sure to test it out slowly at first. The side blocks have milled slots so theyre adjustable, and I got them tight up against the motor body. Step 1: Types of Treadmill Motors I have seen 3 types of motors. Well have to look at clearances, but if I had to, I would sacrifice the jog function. The answer to this question depends on a few factors. Those failures are due to the way the manufacturer treated that poor motor during the design - just to get the desired performance at a lower rated Hp. That turned out to be a non issue. by LX Kid Tue Apr 28, 2015 9:29 pm, Post I also bought a bridge rectifier to change the AC from the motor controller to DC. I fianlly got it all working and here is the scoop. This was quick and easy. All times are GMT-5. Once I was convinced. Thanks for the good words. Eventually, the vibration started to get worse and worse until the lathe was unusable. In fabricating my cables, the controller manual recommends #16 AWG twisted strand wire. 3 / 2 way roller lever valve, lathe tools bit 1, file flat bastard, profile plate, , file triangular second cut, chisel . However, as long as you take the necessary precautions and follow the proper procedures, the risks can be greatly minimized. I don't know why you can't see the pics but do appreciate your comments. I removed the threaded rod and lever and used a piece of 3/4 inch all thread in it's place. Many drill presses, cplishers, small lathes, etc have been converted to DC treadmill motors but the more successful conversions required some carefully made choices. 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. 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. Once you have signal, epoxy the magnet in place and let it cure. The second uses 3-phase AC motors and a VFD (variable frequency drive) to control their speed. Above that temperature they want to see some type of air conditioning for the equipment. How to fit a DC Treadmill motor to a wood lathe WITH SPEED CONTROL! Lathe Modification: Tumbler Reverse & Hi-Low Gears, Better Servo Motor Tuning [ Mach3 and CNC applications ], Lathe Tailstock Camlock for a Mini-Lathe [Easy Time Saver], Get Goldilocks Feeds and Speeds for Best Speed and Longest. Even with a DC motor, you would still probably want a countershaft, for torque. Yes, line voltage refers to the AC supply voltage. Much easier to install the motor now! Interface the DC Controller to the DC Motor. This conversion is absolutely awesome and highly recommended and should have been done by us a long time ago. 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. 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). I suspect it would be ok to remove fan blade entirely but monitor motor closely. Make sure that all of the wires are properly connected. The switch spec sheet is attached for reference. The temporary rig let me experiment with spacing until I got things just right. $125.62. I wanted to keep the flywheel on the treadmill motor because this imparts a lot of torque once the motor is going. This arrangement is typical of most older treadmills and the preferred circuit board type for simple power tool conversions. Have fun and take care Leo Van Der Loo Comment PostCancel Thread Continues Below. Check the specs to be sure theyre compatible with your motor. 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 . Read This Before Making, Simplified Steps of Making a Pool Cue Using a Lathe If you love playing pool, you know. 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. Doing this will provide the maximum power as you actually use the lathe. Once the belt is removed, you can begin working on the conversion. Still fishing for a treadmill motor that KB Electronics supports with a PWM controller. If you google images of 9" South Bend, you'll see what I mean. 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. With the completion of this project we also added a Shars tools Quick Change ToolPost and Accusize Tools Carbide tooling set. It's sturdy. Highly recommended! 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. At very low speeds, the system stalled fairly easily. 9920 Painter Ave. Eurton Electric Co., Inc. 1.5 HP 3100 RPM. Another risk is damaging the gears inside the lathe. Jog: A momentary contact that just bumps the spindle while held down. I have an Optimum TU2506V, (V: read VFD) which has this setup and find it excellent. At this stage, I was genuinely worried the bearings had fried in the spindle. Post I swapped the flywheel pulley to the other end of the shaft and used a v-belt pulley in its place. Also know I'll have to select pullys and belts, digital readout, etc. Im going to need to make a better motor mount so this doesnt happen again. l will be following, i am wanting to do this to a drill press. 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 This drive consists of two split pulleys. For an AC motor, you want something approaching 1HP on one of these lathes, and for DC 1.2 would be ideal. Youll need one thats compatible with the motor on your lathe. Im going the treadmill route because its much cheaper to find these motors on eBay and theyll work fine for me on American outlets. Full Sized Railroading! So I need to keep that V spacing in mind. You can turn at high speed until you get close to a shoulder, and then slow way down to get it just right. Thanks. You want something with this kind of horsepower and voltage ratings. 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. $279.95. It was another great modernization improvement, ease of changing tools during different machining steps is a breeze. 37129558 supply of ventilation fan motor ( foot mounted induction . (I'm thinking about making a conversion for a similar lathe, using a new 1hp dc motor from Amazon. 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. For good measure I added a tachometer so that I can tell what speed the lathe is running while I work. I love this idea! Option 1. 1 year ago. Installed in a headstock as I suggest it will increase max spindle RPM to over 9000. Seriously. Different speeds were achieved by stopping the machine and changing the position of the belts on the different sized pulleys. #1. 2 run to the shunt-field current , 2 run to the armature. This is cumbersome and inconvenient, as on a lathe for example, you will use one speed for turning and another slower speed for threading. That is true, but since we're dealing with a motor and not something more sensitive like an amplifier or computer circuit I skipped the capacitor. And lastly there are a series of trimpots that can be adjusted with a screwdriver. It is rated at 1.5 hp and for continuous running. Depending on some details, actually free. JavaScript is disabled. 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. Having now completed the modification, I have to say that it is fabulous! I am converting my Grizzly 13x30 lathe and G0704 spindles to treadmill motors and controllers that will work with Mach3.