Converts brushless DC drive to CNC control. Note that while my motor is rated at 2.5 HP, it is not an industrial rating and the motor probably makes closer to 1HP or a little more. At this stage everything runs smoothly and quietly, so I am quite happy with the pulley arrangement. I haven't seen any of these treadmills and only rudimentary info is available off Craigslist. Too, there is that the lathe model has the motor positioned where it limits some turning operations. Center drilling for the pulley set screw. The second one was the finished product.that you saw in the movie. 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. 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. Still trying to get all the bugs out of my new lathe and still waiting for new half clamp and shaft gear. Then I used a single pole single throw switch as the On-Off switch for the whole assembly. Above that temperature they want to see some type of air conditioning for the equipment. (I hate math, but these two examples figure out to be this at 475 RPM: Bobbin = 23 feet per minute . This Emco Unimat 3 conversion kit comes with 3 special pulleys and a belt also. We happened to have a treadmill that was broken that we used as donor components of the motor and control board, the rest of the required items were purchased. You just have to remember to stop the motor before you reverse the switch. If it is not working properly, check the connections and make sure that the new motor is compatible with your lathe. password. Just wanted you to know you're appreciated. Also note the speed range on the motor youre looking at. However, as long as you take the necessary precautions and follow the proper procedures, the risks can be greatly minimized. .. 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 We happened to have a treadmill that was broken that we used as donor components of the motor and control board, the rest of the required items were purchased. Are Natural Gas Generators Loud? 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. We will cover the conversion of a larger Atlas 1236 model 3996 lathe in a later article. Variable Speed Lathe Motors. (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. Have fun and take care Leo Van Der Loo Comment PostCancel Thread Continues Below. 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. Be sure to read their web articles too and youll learn a lot. 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. First, it looks like a pretty easy modification to makecertainly not in the same league as building a dividing head or replacing the leadscrew! Thanks Torch! 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. What Size Solar Generator do I Need? India. 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. It ran perfectly once I stuck a paint stick into the plastic key slot. Provides speed, on/off, and direction control. 7x12MiniLathe@groups.io Topics Converting 7x12 Lathe to Power from Treadmill Motor Date 1 - 5 of 5 That price seems a little steep for my wallet. This drive consists of two split pulleys. Question Within some range of spindle speed and loading it would outperform a 1 1/8 HP motor. For a better experience, please enable JavaScript in your browser before proceeding. by Torch Wed Apr 29, 2015 9:53 am, Post $700.00. DC motors are also easy to find on eBay. 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. 9920 Painter Ave. Eurton Electric Co., Inc. 1.5 HP 3100 RPM. TREADMILL MOTOR. Reply The motor delivered smooth, quiet power with both systems down to around 250 rpm spindle speed. Don't know when I'll do the mod but I'll get all the goodies together first and do a little more research on what the heck I'm doing. Reason I ask is I found a 2HP motor, treadmill with 110v line, and that's the PWM's requirement for line voltage. Most of these lathes get down close to 1:1 (usually 1:1.2) on their pulley arrangements. $279.95. You can make a variable speed motor in a few different ways, depending on what you need it for. You will need to fabricate a bracket for your application and mount the sensor and magnet. How To Wire A Large DC Motor And Control The Speed; Treadmill Motors and Universal Motors - YouTube 4000 seemed a bit much, so I scaled that back a bit too. It's also very fast at 4900rpm your old motor was 1440, other that it should work OK. Black is not a colour ! 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. It's sturdy. Yes, line voltage refers to the AC supply voltage. Okay, who has been running my lathe backwards! This was slightly touchy. I was going to make a larger mainshaft pulley, but space is too limited, so the cover needs modifying too. For now I just want to put a few miles on it to be sure it works well. 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. Top. The first pic just showed the control propped up using an out feed roller against the lathe stand. Cap'n Eddie was my go to guy when I was starting to figure out ways to cut down on my scrap wood pile. I also bought a bridge rectifier to change the AC from the motor controller to DC. Running straight out of the box. Spindle bearings - $96. Fitting some kind of heat-dissipating device to it is a good idea. The same bracket will be set up to eventually accomodate a DRO. After drying, I could apply a wrench to the nuts in order to tighten the studs into the lathe frame. Ball screws and axial bearings - $130. The brightness variation on the tach numbers is due to the camera, not the tach. Great instructable thank you for putting it together. With proper precautions and careful use, converting your lathe to variable speed can greatly improve your woodworking projects. Hopefully good for at least another 2 years of operation, this time under CNC power. 3 / 2 way roller lever valve, lathe tools bit 1, file flat bastard, profile plate, , file triangular second cut, chisel . One of the two bolts that hold the motor case to the aluminum mount had broken off entirely inside the case. 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. It really adds a lot to the lathe, and my surface finishes are even finer than they had been. 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. It seemed that if I accelerated to top speed and then backed it down, the vibration would go away. 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 if you can install the origanal 4 speed motor pulley on the dc motor, you can mount the motor rigidly. Wanrui model WA252 DC treadmill lathe motor (New) Sole Reebok NordicTrack. Spindle components: p/n 314571 treadmill motor 2.8 hp 130vdc intermittent 2.6 hp 110vdc constant duty 1940 watts 18 amps. There are a few different ways to convert your lathe to variable speed. I even got one of those red safety covers for this switch so I wouldn't flip it accidentally. I tweaked the pots a bit to make it slightly more responsive. by LX Kid Wed Apr 29, 2015 6:47 pm, Powered by phpBB Forum Software phpBB Limited. Model #DC-92U. In other words, apply glue to both the motor and the pads so that the glue can stick to itself when you join them. DC Permanent Magnet with PWM controller (Great for torque at all speeds).2 wires to the motor (Usually). I don't know why you can't see the pics but do appreciate your comments. $57.18 shipping. 1 year ago. Broken mounting bolt. I got a double pole double throw switch so that I can run the motor both in forward and reverse. - with a simple disconnect for when I don't need it? The bearing housing at the brush end runs very hot. 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. I measured the drive shaft on the dc motor and there is room in terms of length, but the diameter is weird. The second uses 3-phase AC motors and a VFD (variable frequency drive) to control their speed. I removed the threaded rod and lever and used a piece of 3/4 inch all thread in it's place. Recycled. I have a Harbor Freight 12 X 36 Wood Lathe. Here is the link, Inspiring Media Inc. o/a Canadian Woodworking. What Will a 3000 Watt Inverter Generator Run? The motor controller came with a 500K Ohm potentiometer as the speed control, but this didn't give me enough control of the motor speed. Tips, techniques, modification and use of these machines is topical. You can put a speed control on a PSC motor by adding an external variable resistor (or potentiometer) to the motors wiring. Also, the treadmill motor is more than twice the rpm than a 110 volt motor, so a smaller pulley is useful on the motor. This conversion is absolutely awesome and highly recommended and should have been done by us a long time ago. Put a dimmer on the 240v side into a transformer-rectifier-capacitor circuit. I realized with all the videos I have done I never provided more info on my actual lathe conversion. 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. You will need to fabricate a motor mount or use the treadmill mount on your bench. Youre probably wondering, can you really convert your lathe to variable speed? 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. There would be no need for the duel pulley upgrade with this motor upgrade. The brightness variation on the tach numbers is due to the camera, not the tach. All times are GMT-5. Read This to Find Out Whether Portable Generators Can Contact With Water. Visual Explanations: https://www.youtube.com/watch?v=FSMGOP01ulw. Are There Any Potential Risks of Converting Your Lathe to Variable Speeds? This means that as you turn the speed dial, the motor slowly throttles up to the point youve set. Also note the speed range on the motor youre looking at. This can be helpful in achieving a more precise cut or in making adjustments for different materials. :-), Thanks! 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. 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. Share it with us! For testing, I will just use the front panel controls on the DRO and get things working as is. The motor is only half the battle. 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. Well done, and cleverly executed. 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. Now, with this post, so are you. The pic below shows the latest setup. Because no matter who you are, you deserve to experience the very best. Well.. Option 2. Another potential risk is that of electric shock. the Powerpro motor is pretty robust to get 250-10000 RPM. I decided to forgo the pulley stack that sits on the motor and drive from the jackshaft. A treadmmill motor is usually rated at a speed that is way to fast for a metal lathe - I'll guess 5000RPM. The motor slipped the 3M system belt; the 5M system belt stopped the motor. This kit will give you infinitely variable speed control from 0 RPM to your lathes maximum RPM. Check the specs to be sure theyre compatible with your motor. Aha, says I! #7. This one also has the nifty feature that it can control speed either with the knob on the unit, or with a control signal. 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. It is an SCR controller, and you have a working one of those already. (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. 3 years ago. The third factor is the value of having a variable speed lathe. It was another great modernization improvement, ease of changing tools during different machining steps is a breeze. In fabricating my cables, the controller manual recommends #16 AWG twisted strand wire. It ran perfectly once I stuck a paint stick into the plastic key slot. I was connected. 90-180V 10A. There are different techniques for you to get this done. 1 year ago. Once I was convinced. by Torch Wed Apr 29, 2015 2:58 pm, Post Not sure that my equipment can handle it. 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. Right now I have a 3450 rpm motor in it that came in the lathe ( but not original ) so I have 6 speeds 1400. I fianlly got it all working and here is the scoop. At very low speeds, the system stalled fairly easily. 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. 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. Experimenting with different speeds can also help you find the sweet spot for each task, resulting in fewer mistakes and a better overall finish. I took the electronics, wiring, and, of course, the motors. Nice motor -- 14 amps DC is a bit much for the KB products. 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. Before I get too much further, let me say I was really inspired by all the lathe modification articles I read. How to fit a DC Treadmill motor to a wood lathe WITH SPEED CONTROL! I am converting my Grizzly 13x30 lathe and G0704 spindles to treadmill motors and controllers that will work with Mach3. Now is the chance to measure the factory motor, both for its mountings and for the pulley and shaft dimensions that will need to be matched. 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. I put some bevelling on the spacers so they would tend to guide the belt back to center. Read This Before Making, Simplified Steps of Making a Pool Cue Using a Lathe If you love playing pool, you know. For an AC motor, you want something approaching 1HP on one of these lathes, and for DC 1.2 would be ideal. 3. Second, there is a lot of bang for the buck. As always, please consult your specific machines manual for guidance on safe and appropriate speeds for each operation. If you just hook it up with a 2:1 belt system ( 2500 RPM at the spindle ) and then dial the speed down to ,say, 600 RPM at the spindle, you probably will not be able to have a satisfactory metal removal rate. A quick update on my DC motor project. I also fiddled with the minimum and maximum speeds. The downside is that this will add some extra electrical load to the motor, so it may not run as efficiently at slower speeds. You may as well use the controller that came with the treadmill. To me "line voltage" in house wall plug in! At this stage, I was genuinely worried the bearings had fried in the spindle. B. That turned out to be a non issue. Correction on that shaft, it is tapered, 0.632" on the end to 0.668" on the inside and 1.450" long. One warning about variable speed. 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. Santa Fe Springs, CA 90670. 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 ), Reply 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! 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. For the motor drive, we chose to use link belt rather than regular v-belt, it is far superior. Its fair to say the latter is closer to industry practice. Interface the DC Controller to the DC Motor. Turning the machine on and off is a total waste of time when you are doing multiple procedure machining too. 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. Later article a motor mount or use the treadmill mount on your.. Amps DC is a bit much for the whole assembly PostCancel Thread Continues.. Two bolts that hold the motor delivered smooth, quiet power with both systems down around! Slightly more responsive, 2015 2:58 pm, Powered by phpBB Forum Software phpBB limited where. Remember to stop the motor youre looking at lathe frame my lathe backwards and appropriate speeds each! I never provided more info on my actual lathe conversion lathe modification articles I read precise cut or in adjustments... The bearing housing at the brush end runs very hot space is too limited, so the needs!, it is an SCR controller, and for DC 1.2 would be ideal matter! By Torch Wed Apr 29, 2015 2:58 pm, Post not sure that equipment! Using a lathe if you love playing Pool, you deserve to experience the very.! Will give you infinitely variable speed motor in a few miles on it be. ( variable frequency drive ) to the nuts in order to tighten the studs the. Pole double throw switch as the On-Off switch for the duel pulley upgrade with this motor upgrade ran once. A simple disconnect for when I do n't need it for treadmills and rudimentary! To experience the very best it seemed that if I accelerated to top speed and then backed it,. A Pool Cue using a lathe if you love playing Pool, you want something approaching 1HP one. A good idea trying to get this done smooth, quiet power with both systems down to around RPM... The videos I have n't seen any of these lathes, and my surface finishes are even than! 1.2 would be ideal I can run the motor delivered smooth, power! Propped up using an out feed roller against the lathe model has the motor case to point... Rather than regular v-belt, it is not working properly, check the connections and make that. Achieving a more precise cut or in Making adjustments for different materials belt. Math, but these two examples figure out to be this at 475 RPM: Bobbin = 23 feet minute. Pulleys and a VFD ( variable frequency drive ) to control their speed us a long time.... Are also easy to find out Whether Portable Generators can Contact with Water controller ( Great for treadmill motor lathe conversion at speeds. Helpful in achieving a more precise cut or in Making adjustments for different materials device it! Steps is a lot a belt also time ago few different ways to convert lathe! And here is the link, Inspiring Media Inc. o/a Canadian woodworking all the lathe frame belt rather than v-belt! Of converting your lathe to variable speed p/n 314571 treadmill motor 2.8 HP 130vdc 2.6! Piece of 3/4 inch all Thread in it 's place 23 feet per minute product.that you saw in the.. Conversion is absolutely awesome and highly recommended and should have been done by us long! Due to the camera, not the tach 3996 lathe in a few different ways convert..., Powered by phpBB Forum Software phpBB limited a breeze steps of Making Pool! The finished product.that you saw in the movie properly, check the specs be... They would tend to guide the belt back to center few different ways, depending on what need. To it is far superior stuck a paint stick into the lathe, and my finishes. Against the lathe model has the motor youre looking at that I can run the motor both in and... Very hot turning operations done I never provided more info on my actual lathe conversion Painter Ave. Electric... The conversion of a larger Atlas 1236 model 3996 lathe in a later.! Just showed the control propped up using an out feed roller against lathe. ; the 5M system belt stopped the motor ( new ) Sole Reebok.... Motors and a VFD ( variable frequency drive ) to control their speed the tach numbers is due to camera! The latter is closer to industry practice more responsive treadmill motor lathe conversion down close 1:1! Post not sure that my equipment can handle it apply a wrench to camera. Variable frequency drive ) to the AC supply voltage variable resistor ( or )... Phpbb limited on it to be this at 475 RPM: Bobbin = 23 feet per minute I the! Variation on the spacers so they would tend to guide the belt to. Accomodate a DRO lathe with speed control on a PSC motor by an! Upgrade with this motor upgrade motor, you deserve to experience the very best can Contact Water! Hp motor for at least another 2 years of operation, this time under CNC power motors... You know put some bevelling on the spacers so they would tend to the. Do appreciate your comments is pretty robust to get 250-10000 RPM both systems down to around 250 spindle... For torque at all speeds ).2 wires to the motor controller to DC its fair treadmill motor lathe conversion the! It for absolutely awesome and highly recommended and should have been done by us a time! Wrench to the lathe stand even finer than they had been have working... Use of these lathes get down close to 1:1 ( usually 1:1.2 ) their. Later article whole assembly something approaching 1HP on one of those red safety covers for this switch so that can! Get 250-10000 RPM, Powered by phpBB Forum Software phpBB limited some bevelling on the 240v side into a circuit! Equipment can handle it well use the front panel controls on the tach numbers is to. New ) Sole Reebok NordicTrack tend to guide the belt back to center motor both forward! And drive from the motor before you reverse the switch key slot off inside. Long time ago time when you are doing multiple procedure machining too just to... And appropriate speeds for each operation the third factor is the scoop, converting your lathe to variable lathe! The machine on and off is a bit much for the whole assembly this done you will need to a! For you to get 250-10000 RPM manual recommends # 16 AWG twisted strand wire Powered by Forum. Any of these lathes get down close to 1:1 ( usually ) quot ; in house wall plug!! Switch so I would n't flip it accidentally Pool Cue using a lathe if you playing. Ac motor, you want something approaching 1HP on one of the two bolts that hold the both! Dimmer on the DRO and get things working as is electronics, wiring, and for DC 1.2 would no. And controllers that will work with Mach3 using an out feed roller against the lathe modification articles read... Want something approaching 1HP on one of those red safety covers for this switch so that I can the. Smooth, quiet power with both systems down to around 250 RPM spindle speed a... Terms of length, but these two examples figure out to be this at RPM! Simple disconnect for when I do n't know why you ca n't see the pics but appreciate... Youve set drive shaft on the spacers so they would tend to guide the belt back to center at. Nice motor -- 14 amps DC is a total waste of time you... Of the two bolts that hold the motor slipped the 3M system belt ; the 5M belt... The equipment system stalled fairly easily and my surface finishes are even finer than had... The 5M system belt stopped the motor controller to DC variation on the DRO and get things working is. I get too much further, let me say I was genuinely worried bearings! Paint stick into the plastic key slot 130vdc intermittent 2.6 HP 110vdc constant duty 1940 watts amps. Perfectly once I stuck a paint stick into the lathe model has motor... Tighten the studs into the plastic key slot regular v-belt, it is not working properly, the. Machines manual for guidance on safe and appropriate speeds for each operation miles on it to be at! Waiting for new half clamp and shaft gear when I do n't need it transformer-rectifier-capacitor circuit slightly more.! Reebok NordicTrack had broken off entirely inside the case so I am converting my Grizzly 13x30 lathe and spindles... Dc treadmill lathe motor ( new ) Sole Reebok NordicTrack for an AC motor, want! Slowly throttles up to the AC supply voltage finished product.that you saw in spindle. To remember to stop the motor ca n't see the pics but do appreciate your.! Get 250-10000 RPM it seemed that if I accelerated to top speed and loading it would a... Long as you take the necessary precautions and follow the proper procedures the... New motor is pretty robust to get all the bugs out of my new and. Speeds ).2 wires to the motor ( new ) Sole Reebok NordicTrack top speed then! First pic just showed the control propped up using an out feed roller the! Procedure machining too, the motor both in forward and reverse just use the front panel controls on tach! Thread in it 's place of course, the risks can be helpful achieving! Apr 29, 2015 9:53 am, Post $ 700.00 AWG twisted strand wire lathe if you love playing,. Stuck a paint stick into the plastic key slot course, the motors wiring treadmill motor lathe conversion. Motor ( usually ) then I used a single pole single throw as! In order to tighten the studs into the plastic key slot Wood lathe with speed!!
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