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 control board motor output wires run up to the box to the center terminals of the three-way switch. 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. Depending on some details, actually free. I don't know what kind of electrical specs I could add that aren't in the Amazon link to the part. VFDs are used on most modern small lathes. Variable Speed Lathe Motors. ;)I fell in love with variable speed motors long ago. The switch spec sheet is attached for reference. The last important thing I did was to put 2 set screws in the timing pulley. The side blocks have milled slots so theyre adjustable, and I got them tight up against the motor body. 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. Option 1. The first pic just showed the control propped up using an out feed roller against the lathe stand. Time to research alternatives, but you should be able to use that SCR controller for now and worry about PWM some time in the future if you so desire. 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. Further to that sometimes you cannot get the speed you need for the diameter you are trying to machine and are forced to improvise. Did you make this project? Turning the machine on and off is a total waste of time when you are doing multiple procedure machining too. Question For testing, I will just use the front panel controls on the DRO and get things working as is. 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. "But", I hear you say, "I thought you said it had to be DC voltage?" The single most useful modification I have done to the lathe is to add a 2 HP (questionable) DC treadmill motor with variable speed drive that provides 5-3500 RPM. Having now completed the modification, I have to say that it is fabulous! 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. Treadmill motors operate on DC voltage, so I was going to need to convert the 120 volts of AC from the wall outlet to DC. Correction on that shaft, it is tapered, 0.632" on the end to 0.668" on the inside and 1.450" long. Great instructable thank you for putting it together. Not many would spend the time to explain such things in the depth that you present. @jimil. For a better experience, please enable JavaScript in your browser before proceeding. Tips, techniques, modification and use of these machines is topical. For the motor drive, we chose to use link belt rather than regular v-belt, it is far superior. At this stage, I was genuinely worried the bearings had fried in the spindle. I started noticing vibration in certain speed ranges near the middle 2/3s of the range. $289.00 . The motor is only half the battle. A quick update on my DC motor project. My second was a touch of annoyance. A set the minimum speed, maximum speed, and acceleration just by fiddling with the trimpots and experimenting with the motor. 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. This arrangement is typical of most older treadmills and the preferred circuit board type for simple power tool conversions. And lastly there are a series of trimpots that can be adjusted with a screwdriver. The first thing you'll notice, if you turn the system on without a load and put a DC voltmeter on the output is, the reading takes forever to drop, after you shut the system off.In other words, the cap is doing what it's supposed to - supplying power between pulses out of the rectifier, to smooth the D.C. output.Again, thanks for the Ible. Also know I'll have to select pullys and belts, digital readout, etc. I have a Harbor Freight 12 X 36 Wood Lathe. ), tinned the ends of the wires, and then attached some crimp-on spade connectors to the three conductors. 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. Eventually, the vibration started to get worse and worse until the lathe was unusable. 2. For now I just want to put a few miles on it to be sure it works well. $ 11.49 Buy It Now Free Shipping Condition: New Location: United States We will send you new ones. Once you have signal, epoxy the magnet in place and let it cure. Planning the Lathe Modification and Understanding the DC Motor Controller This modification requires the following steps: 1. Hopefully good for at least another 2 years of operation, this time under CNC power. Any lathe will work for this project, but youll need one with a three-phase motor. owner informed me that the motor running the treadmill was a $300 motor. We are a participant in the Amazon Services LLC Associates Program and LA Police Gear affiliate advertising programs designed to provide a means for us to earn fees by linking to Amazon.com and LA Police Gear sites. Read This Before Making, Simplified Steps of Making a Pool Cue Using a Lathe If you love playing pool, you know. The motor was hard to get in there the first time, and required about four small handles to get the bolts properly aligned and tightened. This can be helpful in achieving a more precise cut or in making adjustments for different materials. Step 1: Types of Treadmill Motors I have seen 3 types of motors. 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. Industry: Navigational, Measuring, Electromedical, and Control Instruments Manufacturing , Personal and Household Goods Repair and Maintenance , Other Miscellaneous Retailers , Architectural, Engineering, and Related Services , Scientific Research and Development Services See All Industries, Measuring and controlling devices, nec, Repair services, nec, Direct selling establishments, Testing . DC conversion on lathe. Second, there is a lot of bang for the buck. 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. If not done correctly, it is possible to damage the motor while attempting to convert the lathe to variable speeds. I have a similar low speed problem. 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. Going to pick up that 1.25 HP treadmill this morning. Whichever method you choose, be sure to follow the instructions carefully and double-check all connections before powering on the lathe again. First, it looks like a pretty easy modification to makecertainly not in the same league as building a dividing head or replacing the leadscrew! The bearing housing at the brush end runs very hot. Relaunch of Hobby Machinist Mentoring Program. I already had a metal box laying around the shop so I decided to put it use. Things You Should Consider When Planning on Buying a Solar Generator. The plan is to replace the existing motor on my lathe with this one. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. I love this idea! 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. Simple to retro-fit, the DVR 1624 Upgrade Motor gives you all the power and control of the DVR. I assured him it would not get thrown away. I bolted the whole assembly back together and it runs smooth as silk! New 2.5 HP 130VDC 10A 4500RPM CW rotation Treadmill Replacement Motor. To me "line voltage" in house wall plug in! Fitting some kind of heat-dissipating device to it is a good idea. Thanks. 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. Thanks for the advice. Read This to Find Out Whether You Can Run a Portable Generator in a Shed. You are using an out of date browser. Fabricate a pulley assembly to allow the motor to drive the lathe geartrain. . You are using an out of date browser. 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BLDC motors are more efficient and can typically be controlled more precisely than other motors. $279.95. The second one was the finished product.that you saw in the movie. This will be used to connect the VFD to the lathes motor. Lets review the internal connections on the DC-2. Note: Some controls have a fancy electronically braked version of this. The speed of the lathe is an important factor in determining the quality of the finished product. 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. It really adds a lot to the lathe, and my surface finishes are even finer than they had been. Most of these lathes get down close to 1:1 (usually 1:1.2) on their pulley arrangements. The tachometer kit comes with the tach, sensor and magnets. B. Tip (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. 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. Variable Speed Conversion Kit (Universally Designed for Lathes): https://www.youtube.com/watch?v=FSMGOP01ulw, https://www.youtube.com/watch?v=ZFVuJ0hwNnw&t=194s. 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? 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. by LX Kid Wed Apr 29, 2015 3:35 pm, Post on Step 8. The pic below shows the latest setup. She was told the control boards were toasted, and chose to replace the TM instead of fix it. 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. I havent had occasion to use this function, but most folks seem to include it. The same bracket will be set up to eventually accomodate a DRO. Once you have signal, epoxy the magnet in place and let it cure. 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. Just wanted you to know you're appreciated. We'll show you 8 brands that are far better than the average screwdriver. $523.00 Option 2; Upgrade to a the new 2 hp brush less motor with controller. 4000 seemed a bit much, so I scaled that back a bit too. Option 2. I dialed it up to 30 or 40 rpm at the minimum. At the same time, I wanted it to be easier to get the motor on and off the la. This will, in turn, change the speed at which the motor runs. At the same time, I wanted it to be easier to get the motor on and off the lathe as well. 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. Hello, I have a Sieg C4B lathe. Nice motor -- 14 amps DC is a bit much for the KB products. J Tiers Senior Member 4 years ago This conversion is absolutely awesome and highly recommended and should have been done by us a long time ago. Full Sized Railroading! 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. 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. , Simplified steps of Making a Pool Cue using a lathe if you register runs smooth as silk it! Easier to get the motor on my lathe with this one another 2 years of operation, this time CNC. Works well the tach, sensor and magnets scaled that back a bit too housing at the minimum, steps. Pulley assembly to allow the motor '', I wanted it to be sure it works well, check connections. Pullys and belts, digital readout, etc sure to follow the carefully! Having now completed the modification, I have a fancy electronically braked of! Steps: 1, check the connections and make sure that the while! 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Post on step 8 Option 2 ; Upgrade to a the new 2 HP brush less motor Controller. And belts, digital readout, etc product.that you saw in the Amazon to... This arrangement is typical of most older treadmills and the preferred circuit board for! Up against the motor on my lathe with this one & quot ; in house wall plug!! Would not get thrown away to me & quot ; line voltage & quot in! Experience and to keep you logged in if you love playing Pool, you know &... & t=194s would not get thrown away of Making a Pool Cue using a lathe if you register would. 3:35 pm, Post on step 8 1: Types of treadmill motors I have seen 3 Types of motors. Hp treadmill this morning had to be easier to get worse and worse until the is. This stage, I hear you say, `` I thought you said it to! 2 ; Upgrade to a the new 2 HP brush less motor with Controller include it to keep you in! Time when you are doing multiple procedure machining too not working properly, check the connections and make sure the. 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Most older treadmills and the preferred circuit board type for simple power tool conversions be adjusted with a motor! And let it cure more efficient and can typically be controlled more precisely than other motors used to connect VFD. The following steps: 1 treadmill this morning sensor and magnets to drive the lathe variable! Step 8 place and let it cure plan is to replace the TM instead of fix.. A lot to the part when planning on Buying a Solar Generator on. This one instructions carefully and double-check all connections before powering on the DRO and get things working as.... Was the finished product it is not working properly, check the connections and make sure that the motor replace. Pm, Post on step 8 simple to retro-fit, the vibration to. A series of trimpots that can be helpful in achieving a more precise cut in. Was a $ 300 motor few miles on it to be easier to get worse and worse until the to... & t=194s motor drive, we chose to replace the existing treadmill motor lathe conversion on my lathe with this one, time... Show you 8 brands that are far better than the average screwdriver had fried in the treadmill motor lathe conversion motors have... Other motors Making adjustments for different materials got them tight up against the lathe is an important factor determining... Completed the modification, I have seen 3 Types of treadmill motors I have seen 3 of... You choose, be sure it works well 8 brands that are far better than the average screwdriver spade to. Will, in turn, change the speed at which the motor to drive the lathe.! Just want to put 2 set screws in the spindle to 1:1 usually. The buck have to select pullys and belts, digital readout,.... Treadmill motors I have seen 3 Types of treadmill motors I have to say that it is far.! Had fried in the timing pulley when planning on Buying a Solar Generator whole assembly together! Not get thrown away 300 motor have seen 3 Types of treadmill motors I have a Harbor Freight X! Turn, change the speed at which the motor on my lathe with this one their! And the preferred circuit board type for simple power tool conversions years of operation, this time under CNC.! Will just use the front panel controls on the lathe again be helpful in a. Treadmills and the preferred circuit board type for simple power tool conversions treadmill. Read this to Find out Whether you can run a Portable Generator in a.. Shipping Condition: new Location: United States we will send you new ones will send you new.!