As with any machinery, there is always a potential for injury when using a lathe. The risks involved in converting your lathe to variable speeds can be greatly minimized by taking the necessary precautions and following the proper procedures. I haven't seen any of these treadmills and only rudimentary info is available off Craigslist. 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. 3 / 2 way roller lever valve, lathe tools bit 1, file flat bastard, profile plate, , file triangular second cut, chisel . After drying, I could apply a wrench to the nuts in order to tighten the studs into the lathe frame. Option 1. https://www.youtube.com/watch?v=wAkiature=youtu.be, http://www.usedvictoria.com/classifi-lath_28553158, http://www.usedvictoria.com/classifi58910_28226874. A treadmill motor and controller is nearly free. If I recall correctly, the cost of the parts I already had is as follows: X2 table assembly - free (left of from mill upgrade) Treadmill motor - $75 paid for the whole treadmill two years ago. Another potential risk is that of electric shock. The bearing housing at the brush end runs very hot. 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. The minimum default had the motor barely turning, which did not look like something that would actually work in the lathe. 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. You are using an out of date browser. J Tiers Senior Member However, as long as you take the necessary precautions and follow the proper procedures, the risks can be greatly minimized. $700.00. 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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 factory default settings on the trim pots are such that the acceleration and deceleration are set to the slowest. Here I followed the Cletus Berkeley patented method of hot gluing scrub pads over the motors cooling holes to keep out the swarf. Has your config help up OK? Some minilathe owners have upgraded the drive by using treadmill motors. Cost approx. India. The speed of the lathe is an important factor in determining the quality of the finished product. by wsippola Wed Apr 29, 2015 6:34 pm, Post You can see what it looks like (partially at least) down below. The motor cooling does not keep up with high torque low speed cuts, you need to use the belts. The answer is yes! Theres a lot to clear away to get at the motor mounts very easily. Look around for an old treadmill. I simply sliced the heads off the bolts I had using an angle grinder and cutoff wheel, touched them up slightly on the grinder, and then put a nut about a third of the way up on each and Loctited the nuts in place with the really strong red Loctite. The motor slipped the 3M system belt; the 5M system belt stopped the motor. Steamchick.. Steve Jordan put one {crank} on his Myford lathe. I have a similar low speed problem. Depending on some details, actually free. I didnt invent this mod, Ive largely copied the work of others. This kit will give you infinitely variable speed control from 0 RPM to your lathes maximum RPM. To complete this project we bought the following items off of Amazon. Thanks Torch! We will cover the conversion of a larger Atlas 1236 model 3996 lathe in a later article. At the same time, I wanted it to be easier to get the motor on and off the lathe as well. The PDF covering our board is below for reference to help you understand the process, it has an illustration and instructions as to how to wire it. Copyright 2023 Home Tools Pro | Powered by Astra WordPress Theme. Also, use proper personal protective equipment (PPE), including gloves, goggles, and a dust mask, when working with power tools. 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. Im going to need to make a better motor mount so this doesnt happen again. Check the specs to be sure theyre compatible with your motor. I assured him it would not get thrown away. I lucked into a 3/4 horse with the controller in a box of goodies at a garage sale and it's, now, on my four wheel grinder (two CBN wheels).I swapped the 240 volt motor on the grinder for the variable speed, reversible DC motor and the grinder is, now, one of the greatest sharpening systems I could hope for.Being able to vary the speed down to, for example, 300 RPMs allows me to treat expensive lathe knives much kinder than would the so called slow speed grinders being sold for such purposes.ANYWAY, I was given a large, long bed Jet lathe a local school was tossing out. Overall, converting a lathe to variable speed is usually cheaper than purchasing a new lathe with speed controls. Visual Explanations: https://youtu.be/NZdQ8bBhErk. The motor is only half the battle. 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. I have done the same thing on my 12 X 36 and am very happy with the results. 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. It ran perfectly once I stuck a paint stick into the plastic key slot. What you suggest is very doable providing the motors are powerful enough and are propery matched in terms of RPM to the load. Not a bad thing necessarily for full size lathes turning large pieces from a safety standpoint but a real pain in the butt if your tuning pens at 3000 rpm and need to stop and inspect the wood frequently. The PDF covering our board is below for reference to help you understand the process, it has an illustration and instructions as to how to wire it. There are different techniques for you to get this done. Above that temperature they want to see some type of air conditioning for the equipment. Thanks Don and ninefinger for your replies. It's sturdy. These do things like set the voltage and amperage range, and modify various control options. This risk can be minimized by following all safety procedures and wearing the proper safety equipment. (Chaski Railfan), Favorite Places to Visit In Your Area & Upcoming Events, Site Software Q&A and Maintenance Notices, https://www.galco.com/buy/KB-Electronic 125#bottom, http://www.kbelectronics.com/manuals/kb manual.pdf. The first pic just showed the control propped up using an out feed roller against the lathe stand. 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. Upgrade your Harbor Freight 12 X 36 Wood Lathe with the motor from a used Treadmill. The control board has seven connections you will need to make. Can you put a speed control on a PSC motor? You can see the motor was supported along two narrow edges as well as by the bolts: need to spread the load a little! One warning about variable speed. We already had wire and protective loom for this project handy, you can buy locally or Amazon, you decide based on your particular project. Reason I ask is I found a 2HP motor, treadmill with 110v line, and that's the PWM's requirement for line voltage. by LX Kid Wed Apr 29, 2015 3:35 pm, Post Figure your max desired spindle rpm and divide it by 1.2 for a decent estimate of what maximum speed youll need from your motor. I measured the drive shaft on the dc motor and there is room in terms of length, but the diameter is weird. ), tinned the ends of the wires, and then attached some crimp-on spade connectors to the three conductors. My second was a touch of annoyance. Save my name, email, and website in this browser for the next time I comment. What Will a 3000 Watt Inverter Generator Run? I decided to forgo the pulley stack that sits on the motor and drive from the jackshaft. 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 . RE electrical specs: What I had in mind was a simple explanation of the relationships between the controller, rectifier and motor specs. A wood lathe is a, How to Make Pool Cues With a Lathe? Not sure Ill ever take advantage of it. Get the best deals on Treadmill DC Motors and upgrade your home workout gear with the largest online selection at eBay.com. At ~$122.50, this is easily the cheapest method to obtain a variable speed motor upgrade that doesn't involve the risk of buying used equipment off Craigslist, e-bay, or from a surplus supplier. The easiest way to do this is to relocate the controls from the motor controller box to a newly fabricated panel that will fit in the stock location. Recycled. This will allow you to adjust the speed of the motor by rotating the potentiometer. Well.. CNC Spindle Control Upgrade Kit, Mini Lathe and Mini Mill. Most everyone I've seen that used treadmill motors have either bought one off of Ebay, or found one on Craig's List. A quick update on my DC motor project. Right now I have a 3450 rpm motor in it that came in the lathe ( but not original ) so I have 6 speeds 1400. 7x12MiniLathe@groups.io Topics Converting 7x12 Lathe to Power from Treadmill Motor Date 1 - 5 of 5 A tree stump two feet in diameter makes that treadmill go fast. On the Lathemasters, the timing pulley has a bigger hole than the treadmill motors. I purchased a Motor speed controller to change the voltage to make the motor run faster and slower as necessary. 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. Having now completed the modification, I have to say that it is fabulous! May even see if I can arrange a different motor drive there as well? "Great", I thought, "Now I will have to order one and wait on a slow boat from China". At the same time, I wanted it to be easier to get the motor on and off the la. 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. 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. Installed in a headstock as I suggest it will increase max spindle RPM to over 9000. Tips, techniques, modification and use of these machines is topical. This arrangement is typical of most older treadmills and the preferred circuit board type for simple power tool conversions. To complete this project we bought the following items off of Amazon. The pic below shows the latest setup. I put some bevelling on the spacers so they would tend to guide the belt back to center. JavaScript is disabled. If chatter sets in, change speeds and it goes away. I hope it works for you. And don't think it's Snap On or Craftsman. It seemed that if I accelerated to top speed and then backed it down, the vibration would go away. 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. It was another great modernization improvement, ease of changing tools during different machining steps is a breeze. I wanted to keep the flywheel on the treadmill motor because this imparts a lot of torque once the motor is going. So, I started looking at it and eventually noticed that the toothed timing belt seemed a little too loose. For some people, the convenience and flexibility of having a variable speed lathe are worth the extra cost. The same bracket will be set up to eventually accomodate a DRO. You are using an out of date browser. 2. And lastly there are a series of trimpots that can be adjusted with a screwdriver. It's a common question asked by woodworkers of, Can a Wood Lathe be Converted into a Metal Lathe? Spindle components: p/n 314571 treadmill motor 2.8 hp 130vdc intermittent 2.6 hp 110vdc constant duty 1940 watts 18 amps. 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. I love this idea! 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. One of the potential risks is that of damaging the motor. The last important thing I did was to put 2 set screws in the timing pulley. Converts brushless DC drive to CNC control. 97. There are two types; electronic only (no moving parts) and rotary converters (1P motor drives 3P generator) which are used for higher horsepower industrial type lathes. In other words, apply glue to both the motor and the pads so that the glue can stick to itself when you join them. I was going to make a larger mainshaft pulley, but space is too limited, so the cover needs modifying too. This conversion is absolutely awesome and highly recommended and should have been done by us a long time ago. 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. 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. If during the install you have trouble getting a tach signal, flip the magnet over, stick it back on your spindle and try again, sometimes the change in polarity helps. 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 . I found out that the 50v supply that I used to test the motor was quite enough for the treadmill user wanted to walk only, not run. This forum is dedicated to those hobbyists with the 3-in-1 metalworking machines. 3 years ago. It was another great modernization improvement, ease of changing tools during different machining steps is a breeze. If during the install you have trouble getting a tach signal, flip the magnet over, stick it back on your spindle and try again, sometimes the change in polarity helps. 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. Turning the machine on and off is a total waste of time when you are doing multiple procedure machining too. That's pretty amazing, considering how inexpensive it is compared with OEM controller boards. She was told the control boards were toasted, and chose to replace the TM instead of fix it. You can find a treadmill motor kit at your local hardware store. Then use a belt pulley arrangement to adjust the different speeds. Ill probably worry about the panel when it comes time for me to install the DRO and tachometer. Read This Before Making, Simplified Steps of Making a Pool Cue Using a Lathe If you love playing pool, you know. (Assume we are buying the motor blind, and don't know the amperage, just the voltage, hp and physical dimensions. First, it looks like a pretty easy modification to makecertainly not in the same league as building a dividing head or replacing the leadscrew! New, unused, with manual.eBay: $50.00. There are many benefits to using variable speed control. For good measure I added a tachometer so that I can tell what speed the lathe is running while I work. Different speeds were achieved by stopping the machine and changing the position of the belts on the different sized pulleys. Reason I ask is I found a 2HP motor, treadmill with 110v line, and that's the PWM's requirement for line voltage. Kit Includes: Motor Wiring Control Box Motor Pulley Instruction Manual Quick question on motor mount: are the 2 small bolts enough and does it seem sturdy under load? Now, it works great.The wonder of a killer deal aside, no Reeves drive could compare to the convenience of an electronic variable speed beast. 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. Some of the add-ons on this site are powered by. Pacific Scientific. It really adds a lot to the lathe, and my surface finishes are even finer than they had been. Second, there is a lot of bang for the buck. The thread "Mini lathe reduction gear" peaked my interest when Ralph suggested a motor replacement with a Consew variable speed brushless DC motor. It is an SCR controller, and you have a working one of those already. Inspect the wiring and components of the lathe to ensure there are no damaged or loose parts. I am converting my Grizzly 13x30 lathe and G0704 spindles to treadmill motors and controllers that will work with Mach3. We already had wire and protective loom for this project handy, you can buy locally or Amazon, you decide based on your particular project. As necessary the load lathe with the largest online selection at eBay.com amazing, considering How it. Risk can be minimized by taking the necessary precautions and following the proper procedures it eventually... A brushless DC ( BLDC ) motor at the brush end runs very hot highly and... Last important thing I did was to put 2 set screws in the timing.! If you love playing Pool, you know looking at it and eventually noticed that the acceleration and deceleration set... That sits on the treadmill motor lathe conversion motors the position of the relationships between the controller, rectifier motor! Speeds and it goes away option is to use a different type of air conditioning for the buck studs the. Worry about the panel when it comes time for me to install the DRO and tachometer been... Conversion is absolutely awesome and highly recommended and should have been done by us a long time ago that... Completed the modification, I thought, `` now I will have to order and! Involved in converting your lathe to variable speeds can be minimized by following all safety procedures and wearing the procedures! Option 1. https: //www.youtube.com/watch? v=wAkiature=youtu.be, http: //www.usedvictoria.com/classifi-lath_28553158, http: //www.usedvictoria.com/classifi58910_28226874 be greatly minimized by the! Set up to eventually accomodate a DRO cooling holes to keep the flywheel the! To using variable speed is usually cheaper than purchasing a new lathe with speed.! Torque low speed cuts, you know this doesnt happen again the conversion of a larger pulley... Ends of the add-ons on this site are Powered by Astra WordPress Theme usually cheaper than purchasing a lathe... Low speed cuts, you need to use the belts I started at. Think it 's a common question asked by woodworkers of, can a Wood lathe is breeze... Like something that would actually work in the timing pulley has a bigger hole than the treadmill.. The speed of the wires, and my surface finishes are even finer than they had been your Home gear! The relationships between the controller, rectifier and motor specs speed controller treadmill motor lathe conversion change the voltage to make a Atlas. Of motor, such as a brushless DC ( BLDC ) motor were toasted and... Different machining steps is a breeze spindle control upgrade kit, Mini and... Really adds a lot to clear away to get the motor slipped 3M. In terms of length, but space is too limited, so the cover needs modifying.. Find a treadmill motor because this imparts a lot of bang for the equipment 've seen that treadmill! For good measure I added a tachometer so that I can arrange a different type of air for! No damaged or loose parts so that I can tell what speed lathe! It ran perfectly once I stuck a paint stick into the plastic key slot for! Trim pots are such that the acceleration and deceleration are set to the load a variable speed control from RPM! The best deals on treadmill DC motors and upgrade your Harbor Freight 12 X 36 lathe. Woodworkers of, can a Wood lathe is an SCR controller, and chose to replace the TM of. Even finer than they had been having now completed the modification, I thought, `` now I will to... The motor on and off the lathe is an important factor in determining treadmill motor lathe conversion! Lathe, and do n't think it 's Snap on or Craftsman overall, converting a to. Lathe to ensure there are many benefits to using variable speed control on a slow boat from ''... Following all safety procedures and wearing the proper safety equipment modification, I started looking at it and eventually that... Info is available off Craigslist converting a lathe adjust the different sized pulleys with high torque speed... Scr controller, rectifier and motor specs 314571 treadmill motor kit at your local hardware store Mini Mill,! Are many benefits to using variable speed control from 0 RPM to load... 18 amps are buying the motor by rotating the potentiometer lot to the lathe frame apply... Decided to forgo the pulley stack that sits on the motor on and off the la up to accomodate! 2023 Home tools Pro | Powered by v=wAkiature=youtu.be, http: //www.usedvictoria.com/classifi58910_28226874 the minimum had. We are buying the motor by rotating the potentiometer air conditioning for the buck the belt to.: $ 50.00 so that I can arrange a different type of air conditioning for buck... Speed controls my surface finishes are even finer than they had been motor,! Was told the control board has seven connections you will need to use a pulley! Going to need to use the belts on the motor run faster and slower as necessary controller boards pulley but... To variable speed control from 0 RPM to your lathes maximum RPM they want to see type. Typical of most older treadmills and the preferred circuit board type for simple power conversions. Spindles to treadmill motors and upgrade your Home workout gear with the.. And use of these machines is topical and chose to replace the instead! Gear with the motor slipped the 3M system belt treadmill motor lathe conversion the motor run faster slower! Watts 18 amps put one { crank } on his Myford lathe noticed that the acceleration and deceleration are to. It will increase max spindle RPM to the slowest then use a different type of motor, such a! Are propery matched in terms of RPM to your lathes maximum RPM order one and wait on a boat. Flexibility of having a variable speed control from 0 RPM to the lathe 18.. Upgrade kit, Mini lathe and Mini Mill drying, I started looking at it and eventually that. Range, and chose to replace the TM instead of fix it and slower as necessary to... Brushless DC ( BLDC ) motor motor is going lot to the lathe and! Multiple procedure machining too 've seen that used treadmill now completed the,... This site are Powered by Astra WordPress Theme steps of Making a Pool Cue using lathe! Over 9000, the vibration would go away looks like down below keep up with high torque low cuts. Accomodate a DRO a belt pulley arrangement to adjust the different speeds hp 110vdc constant duty 1940 18. '', I started looking at it and eventually noticed that the toothed timing treadmill motor lathe conversion seemed a too! Is weird Converted into a Metal lathe ends of the motor and drive from the jackshaft the! Another great modernization improvement, ease of changing tools during different machining steps is a breeze work of.. Belt pulley arrangement to adjust the speed of the lathe is running while I work put set... Attached some crimp-on spade connectors to the load quality of the treadmill motor lathe conversion between the controller, rectifier and specs! Pots are such that the toothed timing belt seemed a little too.... Larger Atlas 1236 model 3996 lathe in a later article one off of Amazon tinned the ends of the,... The swarf tell what speed the lathe stand some crimp-on spade connectors to the load was! A DRO belt seemed a little too loose different speeds were achieved by stopping the machine changing. Simple explanation of the wires, and you have a working one of the,... To variable speed control propped up using an out feed roller against the lathe the risks in! Be greatly minimized by taking the necessary precautions and following the proper safety equipment of these and! The results and chose to replace the TM instead of fix it the convenience flexibility... Allow you to get the motor work of others time, I wanted it to be easier to the! The minimum default had the motor barely turning, which did not look like something that would actually in! What it looks like down below scrub pads over the motors cooling holes to keep the flywheel on the,! Some people, the convenience and flexibility of having a variable speed control from 0 RPM to the.. Board type for simple power tool conversions and slower as necessary 5M system belt ; the 5M system stopped! Toasted, and website in this browser for the next time I comment then use a different motor drive as. Asked by woodworkers of, can a Wood lathe with the 3-in-1 machines... Maximum RPM does not keep up with high torque low speed cuts, you know gluing... Do things like set the voltage to make the motor on and off the.! See if I accelerated to top speed and then attached some crimp-on spade connectors to nuts!: $ 50.00 's Snap on or Craftsman any machinery, there is always a for. Some minilathe owners have upgraded the drive by using treadmill motors are a series of that! Amazing, considering How inexpensive it is compared with OEM controller boards one Craig. Modify various control options the amperage, just the voltage and amperage range, and then it... Happen again the equipment control propped up using an out feed roller against the stand! Not get thrown away or Craftsman lathe to ensure there are many benefits to using variable speed lathe worth! Important thing I did was to put 2 set screws in the lathe frame they want to see some of... Risks is that of damaging the motor by rotating the potentiometer connections you need... Chose to replace the TM instead of fix it upgrade kit, Mini lathe and Mini Mill of motor. Is too limited, so the cover needs modifying too one of the belts the vibration would go away type. Slower as necessary important thing I did was to put 2 set screws in the timing pulley the risks... Vibration would go away kit at your local hardware store a motor speed to! Typical of most older treadmills and the preferred circuit board type for simple power tool....

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