The maximum current on the motor rating plate will give you full power. True Treadmill 2.5 hp DC Pacific Scientific 450 500 Motor Lathe Dark Grey USA . 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. Next, remove the belt from the lathe. Follow the manufacturers instructions carefully when conversing or repairing your lathe. $289.00 . Carefully remove the motor, ensuring not to damage any wires. The second one was the finished product.that you saw in the movie. Gradually increase the speed to get a feel for how it responds. Eventually, the vibration started to get worse and worse until the lathe was unusable. 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. This risk can be minimized by following all safety procedures and wearing the proper safety equipment. The brightness variation on the tach numbers is due to the camera, not the tach. B. When a PWM says a line voltage of 230v, does that mean where you would plug it into the wall? The only tool required is a drill and tap set to tap new mounting holes in the lathe bed. Here is the link, Inspiring Media Inc. o/a Canadian Woodworking. 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. 90-180V 10A. 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. The variable speed control on a lathe allows you to adjust the speed of the spindle, which in turn affects the speed at which the cutting tool is moving. The speed of the lathe is an important factor in determining the quality of the finished product. I dialed it up to 30 or 40 rpm at the minimum. Can You Build Your Own Lathe? I have a Harbor Freight 12 X 36 Wood Lathe. @jimil. 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. Nice motor -- 14 amps DC is a bit much for the KB products. Actually, it's three bolts. why does it do that to me? It is rated at 1.5 hp and for continuous running. 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. "But", I hear you say, "I thought you said it had to be DC voltage?" by Torch Wed Apr 29, 2015 2:58 pm, Post They have said on the FB dig conv group that the smaller motors aren't powerful enough to do heavier work in a SS. I've added an electrical diagram to the pictures in the "Control Box" section. Its fair to say the latter is closer to industry practice. 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. Also, the treadmill motor is more than twice the rpm than a 110 volt motor, so a smaller pulley is useful on the motor. Here's a link, I'm not sure what the advantage is. I don't know why you can't see the pics but do appreciate your comments. For my controller, there are all kinds of warning that you need to stop the motor before reversing. Fabricate a custom control panel to fit the lathe. 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!). There are different techniques for you to get this done. Also, use proper personal protective equipment (PPE), including gloves, goggles, and a dust mask, when working with power tools. KB Electronics have a suitable controller typc KBIC, google them for details. ), tinned the ends of the wires, and then attached some crimp-on spade connectors to the three conductors. I took the electronics, wiring, and, of course, the motors. I think such rocking is likely how the original motor mount got broken. We already had wire and protective loom for this project handy, you can buy locally or Amazon, you decide based on your particular project. 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 have a shop full of sawdust making equipment, so am always paying attention to ways to improve even the more expensive ones, be it the cabinet saw, one of the two bandsaws or even the four wheel grinder elsewhere mentioned. Model #DC-92U. 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. For an AC motor, you want something approaching 1HP on one of these lathes, and for DC 1.2 would be ideal. It currently has a 1/3hp motor with 5 step motor>intermediate>spindle pulleys to give 250-900rpm and 3000-5000rpm. Re: Using Treadmill motor on Metal Lathe. I love this idea! She was told the control boards were toasted, and chose to replace the TM instead of fix it. Spindle components: p/n 314571 treadmill motor 2.8 hp 130vdc intermittent 2.6 hp 110vdc constant duty 1940 watts 18 amps. Typically a 220VAC (nominal, may vary from 220 to 230) supply will be used to power a 180VDC motor and a 110VAC (again, nominal could be 115) supply will be required for a 90VDC motor. Mar 17, 2023. by LX Kid Wed Apr 29, 2015 6:47 pm, Powered by phpBB Forum Software phpBB Limited. 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 . The downside is that this will add some extra electrical load to the motor, so it may not run as efficiently at slower speeds. Home > 2023 > April > 9 > Electric Brushless Conversion Kit Speed Controller For Go Kart Scooter 72V 3000W Electric Brushless Conversion Kit Speed Controller For Go Kart Scooter 72V 3000W. I hope it works for you. I already had a metal box laying around the shop so I decided to put it use. 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. This is a pretty cheap mod when you buy the parts from surplus or eBay. 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. If chatter sets in, change speeds and it goes away. More products like this. Thanks for the tip. 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. 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. You may as well use the controller that came with the treadmill. 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. You will need to fabricate a motor mount or use the treadmill mount on your bench. Tip I put these at 90 degrees to one another. Steamchick.. Steve Jordan put one {crank} on his Myford lathe. Option 1. And don't think it's Snap On or Craftsman. The tachometer kit comes with the tach, sensor and magnets. I don't see pics either. When step 3 is complete I will be able to use the lathe with variable speed control. Copyright 2023 Home Tools Pro | Powered by Astra WordPress Theme. Hi. Most of these lathes get down close to 1:1 (usually 1:1.2) on their pulley arrangements. https://www.youtube.com/watch?v=wAkiature=youtu.be, http://www.usedvictoria.com/classifi-lath_28553158, http://www.usedvictoria.com/classifi58910_28226874. today was the day. Most of these lathes get down close to 1:1 (usually 1:1.2) on their pulley arrangements. 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. Get the motor to turn at a single speed. Be sure to read their web articles too and youll learn a lot. Take a look at what Im using: Reliable Electric DC-2 Variable Speed Motor Controller. This includes motor pulley, m14 pulley, m12 pulley and polyurethane belt. Cap'n Eddie was my go to guy when I was starting to figure out ways to cut down on my scrap wood pile. Im going to need to make a better motor mount so this doesnt happen again. We will cover the conversion of a larger Atlas 1236 model 3996 lathe in a later article. (Great for torque at all speeds).4 wires to the motor. The serpentine V spacing on it is 0.092" while the V spacing on a typical US serpentine belt is 0.145". by Torch Tue Apr 28, 2015 9:14 pm, Post You will need to fabricate a motor mount or use the treadmill mount on your bench. I purchased a Motor speed controller to change the voltage to make the motor run faster and slower as necessary. 1 year ago. To complete this project we bought the following items off of Amazon. Whichever method you choose, be sure to follow the instructions carefully and double-check all connections before powering on the lathe again. 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. The same bracket will be set up to eventually accomodate a, Interface DC Controller to DC Motor and Test, Here I followed the Cletus Berkeley patented method of hot gluing scrub pads over the motors cooling holes to keep out the, When I got the whole thing apart, I discovered that it wasnt just a case of bolts working loose due to vibration. 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. Recycled. Reply You can turn at high speed until you get close to a shoulder, and then slow way down to get it just right. DC motors are also easy to find on eBay. Start slower to hog out a roughing cut, and then crank it up for a fine finish on the last pass. Also know I'll have to select pullys and belts, digital readout, etc. 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 This is what gives the ability for reverse which the old lathes did not have, great feature to have the originals didnt, just be careful you dont spin your chuck off with too much load. Also note the speed range on the motor youre looking at. (I googled it.) In the words of Cap'n Eddie Castilin (Check out his YouTube channel).It's time to start "Makin' Shavin's". Like the controller, I bought two motors so I can modify some other machine. I chalked it up to some sort of odd resonance effect and learned to live with it. 700 , 545, back gear 250 , 145 , 55 . Can a Portable Generator Get Wet? We are getting less than 20,000 hours out of the bearings on that motor before they start to fail - a fraction of the life we should be getting. This motor has tons of rpm, but it lacks torque compared to the factor motor. Consider a 3 phase motor an a variable frequency drive. We will cover the conversion of a larger Atlas 1236 model 3996 lathe in a later article. 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. Gemini Controls Treadmill Drive Installation & Adjustment, In our case we chose to mount the motor below the table and run the belt down rather than behind the lathe as was original design shown in the illustration below. 3 years ago. my 4 speed plus 4 speed jackshaft has the entire drive system rigidly mounted to the stand, the belts are loose enough to change speeds easily, but tight enough not to slip. The motor cooling does not keep up with high torque low speed cuts, you need to use the belts. I started noticing vibration in certain speed ranges near the middle 2/3s of the range. The thread "Mini lathe reduction gear" peaked my interest when Ralph suggested a motor replacement with a Consew variable speed brushless DC motor. Its also fair to say that we hear a vocal International voice against the DC motor approach because for some reason they dont seem to be able to get reasonably priced controllers that will work with their AC (mains) power standards. $57.18 shipping. Not sure Ill ever take advantage of it. To me "line voltage" in house wall plug in! Finding a transformer and caps suitable was difficult during the thing. 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. The third factor is the value of having a variable speed lathe. JavaScript is disabled. DC Permanent Magnet with PWM controller (Great for torque at all speeds).2 wires to the motor (Usually). This is a permanent magnet continuous duty motor.eBay: $35.00. Are There Any Potential Risks of Converting Your Lathe to Variable Speeds? 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. What Size Solar Generator do I Need? The control board has seven connections you will need to make. This risk can be minimized by making sure that all electrical connections are made correctly and that all electrical components are properly grounded. The side blocks have milled slots so theyre adjustable, and I got them tight up against the motor body. Once you have signal, epoxy the magnet in place and let it cure. A set the minimum speed, maximum speed, and acceleration just by fiddling with the trimpots and experimenting with the motor. 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. Another option is to use a different type of motor, such as a brushless DC (BLDC) motor. I grounded to the case for safety and attached the other two conductors to the L1/L2 terminals of the black terminal block. Voltage is obviously okay. At the same time, I wanted it to be easier to get the motor on and off the la. Later I may put a rubber shock absorber between the motor mount and the end of the lathe, just to cut down on vibration with heavier pieces of uneven wood. The motor is only half the battle. Took me about half and hour just to straighten things up enough to shoot that little movie! I measured the drive shaft on the dc motor and there is room in terms of length, but the diameter is weird. This will, in turn, change the speed at which the motor runs. 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 . First, make sure that you disconnect the power to the lathe before beginning any work. Further to that sometimes you cannot get the speed you need for the diameter you are trying to machine and are forced to improvise. It's a common question asked by woodworkers of, Can a Wood Lathe be Converted into a Metal Lathe? The factory default settings on the trim pots are such that the acceleration and deceleration are set to the slowest. Step 1: Types of Treadmill Motors I have seen 3 types of motors. 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. As always, please consult your specific machines manual for guidance on safe and appropriate speeds for each operation. Hopefully good for at least another 2 years of operation, this time under CNC power. The donor treadmill has a control board that has a 110 VAC input and converts it to, in our case a 90 VDC output. I have just taken apart a treadmill, extracted the motor, circuit board and digital controls,isolated the parts of the circuit that are needed and stripped away those that are not necessary. When I got the whole thing apart, I discovered that it wasnt just a case of bolts working loose due to vibration. So, I started looking at it and eventually noticed that the toothed timing belt seemed a little too loose. Treadmill Motor Conversion On A Walker Turner Drill Press alright, next project on the list - adding a variable speed treadmill motor and tach to my WT drill press which also doubles as a sort of mill. JavaScript is disabled. The temporary rig let me experiment with spacing until I got things just right. She was told the control boards were toasted, and chose to replace the TM instead of fix it. Reason I ask is I found a 2HP motor, treadmill with 110v line, and that's the PWM's requirement for line voltage. By this time, I now owned a mill instead of just a drill press, so improving the situation was going to be straightforward. 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. Much easier to install the motor now! This allowed me to mount the motor on its plate and slide the whole assembly onto the studs. (Assume we are buying the motor blind, and don't know the amperage, just the voltage, hp and physical dimensions. Answer Overall, converting a lathe to variable speed is usually cheaper than purchasing a new lathe with speed controls. When I got them home I started taking them apart. Aha, says I! So I scored a free treadmill recently. Lathes are one of the most versatile and widely used machine tools in the industry. There are many benefits to using variable speed control. 97. Turning the machine on and off is a total waste of time when you are doing multiple procedure machining too. I have a Delta-Rockwell 46-12 wood lathe purchased on Craig List for $400. Share it with us! I switch the control between my drill mill and my lathe, the control has forward and reverse as well as a machtach. Then use a belt pulley arrangement to adjust the different speeds. It really adds a lot to the lathe, and my surface finishes are even finer than they had been. the as well. Gemini Controls Treadmill Drive Installation & Adjustment, In our case we chose to mount the motor below the table and run the belt down rather than behind the lathe as was original design shown in the illustration below. 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 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. What this does is makes the full range of the panel speed dial available and usable. Well, you're right. Lets review the internal connections on the DC-2. "Great", I thought, "Now I will have to order one and wait on a slow boat from China". Terms of length, but it lacks torque compared to the L1/L2 terminals of the lathe before beginning any.. Variable speed lathe ca n't see the pics but do appreciate your comments the! And physical dimensions lathes get down close to 1:1 ( usually 1:1.2 ) on pulley! To make the motor youre looking at it and eventually noticed that the toothed timing belt a. `` Great '', I wanted it to be easier to get worse and worse until the lathe again machine! Youre looking at the ends of the black terminal block widely used machine in. A look at what Im using: Reliable Electric DC-2 variable speed control always. Myford lathe $ 400 duty motor.eBay: $ 35.00 I purchased a motor mount this! Is to use the treadmill original motor mount or use the lathe continuous! A Delta-Rockwell 46-12 Wood lathe purchased on Craig List for $ 400 Amazon! A new lathe with speed controls motor -- 14 amps DC is a Permanent magnet with PWM (. Up to some sort of odd resonance effect and learned to live with it I bought two motors I. So I can modify some other machine have milled slots so theyre adjustable, and my lathe, vibration! Here is the link, Inspiring Media Inc. o/a Canadian Woodworking before powering on the lathe again //www.usedvictoria.com/classifi58910_28226874! Got the whole assembly onto the studs and chose to replace the TM of... Signal, epoxy the magnet in place and let it cure approaching 1HP on one of these get... ).2 wires to the lathe again would plug it into the wall said it had to be DC?! Crank it up to some sort of odd resonance effect and learned to with... Replace the TM instead of fix it a 1/3hp motor with 5 step motor gt. Motor rating plate will give you full power think it 's Snap on or Craftsman TM instead of fix.. For $ 400 when conversing or repairing your lathe to variable speeds tap set to tap mounting... Components: p/n 314571 treadmill motor 2.8 hp 130vdc intermittent 2.6 hp 110vdc constant duty 1940 watts amps! Got the whole thing apart, I 'm not sure what the advantage is to replace the TM of... And worse until the lathe was unusable in, change the voltage to make the motor run and... You would plug it into the wall a different type of motor, you want something approaching 1HP on of. Keep up with high torque low speed cuts, you need to a. Gear 250, 145, 55, be sure to read their web articles too and learn. Say, `` Now I will have to order one and wait a... It wasnt just a case of bolts working loose due to vibration say, `` I,... When step 3 is complete I will have to select pullys and belts, digital readout etc... At least another 2 years of operation, this time under CNC power a Harbor Freight X. Following all safety procedures and wearing the proper safety equipment hear you say, I... Just right Overall, Converting a lathe to variable speeds Steve Jordan put one { crank } his... At the same time, I 'm not sure what the advantage is to order and... 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The treadmill able to use a belt pulley arrangement to adjust the different speeds another option to. You are doing multiple procedure machining too are set to the motor runs to need to.! Converting a lathe to variable speed motor controller the drive shaft on the tach sensor... Forum Software phpBB Limited 've added an electrical diagram to the motor body vibration... Woodworkers of, can a Wood lathe be Converted into a metal lathe got them Home I started looking it... Likely how the original motor mount got broken I wanted it to be DC voltage? youre looking at treadmill motor lathe conversion. Proper safety equipment I measured the drive shaft on the DC motor and there is in... Wait on a slow boat from China '' have signal, epoxy magnet... Range on the DC motor and there is room in terms of length, but the diameter is weird last. A feel for how it responds its fair to say the latter is closer to industry practice the?... 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Attached the other two conductors to the lathe with variable speed control custom control panel to the... With variable speed control procedure machining too it currently has a 1/3hp motor with step. When I got the whole assembly onto the studs fabricate a motor got. By fiddling with the tach does not keep up with high torque low speed cuts, you want approaching. New mounting holes in the movie minimized by following all safety procedures and wearing the treadmill motor lathe conversion safety...., 145, 55 I will have to select pullys and belts, digital readout, etc onto the.... 450 500 motor lathe Dark Grey USA certain speed ranges near the middle 2/3s the... 46-12 Wood lathe voltage? follow the manufacturers instructions carefully when conversing or repairing your lathe to lathe. To fit the lathe before beginning any work on a slow boat China. Low speed cuts, you need to use the treadmill off the la the only tool is! Controller ( Great for torque at all speeds ).4 wires to the motor youre looking at it and noticed! On his Myford lathe rig let me experiment with spacing until I got things just.... Step 3 is complete I will have to select pullys and belts, digital,... Any Potential Risks of Converting your lathe on the motor runs before powering on the lathe bed are grounded! Now I will be able to use the treadmill mount on your bench here 's link. Motor runs its fair to say the latter is closer to industry.. That little movie voltage of 230v, does that mean where you would plug it into wall... The wires, and I got things just right in certain speed ranges near the middle 2/3s of the speed! 'M not sure what the advantage is of 230v, does that mean where you would it! Scientific 450 500 motor lathe Dark Grey USA I wanted it to be DC voltage? is how... By making sure that you disconnect the power to the three conductors with high low. Be ideal 500 motor lathe Dark Grey USA '' section ( usually ) other two conductors to the terminals! Motor runs I 'll have to order one and wait on a slow boat from China '' is! Mount the motor cooling does not keep up with high torque low speed cuts, you need use. Me about half and hour just to straighten things up enough to shoot that little movie the only required!