The jackshaft gives it a 2:1 ratio to help that out. 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. Mar 17, 2023. 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? The last important thing I did was to put 2 set screws in the timing pulley. I will likely be locating the controller unobtrusively behind the lathe where it is out of sight and out of mind. You can see what it looks like down below. With proper precautions and careful use, converting your lathe to variable speed can greatly improve your woodworking projects. I even got one of those red safety covers for this switch so I wouldn't flip it accidentally. 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. Installed in a headstock as I suggest it will increase max spindle RPM to over 9000. The second one was the finished product.that you saw in the movie. With the completion of this project we also added a Shars tools Quick Change ToolPost and Accusize Tools Carbide tooling set. MUZHI 6pcs Rocker Switch ON/Off 2pin Round Toggle SPST Switch with Wires AC 2. There would be no need for the duel pulley upgrade with this motor upgrade. I started noticing vibration in certain speed ranges near the middle 2/3s of the range. Alternatively, it may be possible to modify the DC motor to fit the stock pulley stack. It may not display this or other websites correctly. I swapped the flywheel pulley to the other end of the shaft and used a v-belt pulley in its place. Reply You want something with this kind of horsepower and voltage ratings. I am building a new stand since the one it is on is not original and is not substantial enough for the heavy machine. Wanrui model WA252 DC treadmill lathe motor (New) Sole Reebok NordicTrack. I don't think your going to find that in any treadmill motor. There is a big black terminal black near the center of the circuit board, and a series of three smaller brown blocks along the bottom: Wiring for Start/Stop/Jog uses these three: Once the various power in/out and control connections are made, there are a number of jumpers to consider in order to configure the controller properly to our application. This forum is dedicated to those hobbyists with the 3-in-1 metalworking machines. Still fishing for a treadmill motor that KB Electronics supports with a PWM controller. You are using an out of date browser. At this stage its really easy to test the motor, and I must say I was very gratified when it fired up. Youre probably wondering, can you really convert your lathe to variable speed? It is an SCR controller, and you have a working one of those already. Are There Any Potential Risks of Converting Your Lathe to Variable Speeds? There have been some really bad motor controllers that couldn't handle that situation (hopefully all in the past). 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. It currently has a 1/3hp motor with 5 step motor>intermediate>spindle pulleys to give 250-900rpm and 3000-5000rpm. 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. By this time, I now owned a mill instead of just a drill press, so improving the situation was going to be straightforward. Interface the DC Controller to the DC Motor. Consider a 3 phase motor an a variable frequency drive. As always, please consult your specific machines manual for guidance on safe and appropriate speeds for each operation. $523.00 Option 2; Upgrade to a the new 2 hp brush less motor with controller. 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. 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. The thread "Mini lathe reduction gear" peaked my interest when Ralph suggested a motor replacement with a Consew variable speed brushless DC motor. Even with a DC motor, you would still probably want a countershaft, for torque. Where I work in Iowa, we've got an "845"Hp motor on a large air compressor. Most of these lathes get down close to 1:1 (usually 1:1.2) on their pulley arrangements. Fabricate a pulley assembly to allow the motor to drive the lathe geartrain. Not many would spend the time to explain such things in the depth that you present. 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. This conversion is absolutely awesome and highly recommended and should have been done by us a long time ago. Maybe that has something to do with it. Turning the machine on and off is a total waste of time when you are doing multiple procedure machining too. As a temporary measure, I machined these pieces using just a set of washers and an ordinary shaft collar to hold the timing pulley in place: Temporary rig to machine the pulley spacers with. 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. DC motor with Armature-voltage DC Motor Control. 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. RE electrical specs: What I had in mind was a simple explanation of the relationships between the controller, rectifier and motor specs. Instead of trying to find or modify a pulley to go on the shaft of the lathe, I decided to keep the Reeves Drive pulley on the lathe headstock shaft. 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. ), Reply The plan is to replace the existing motor on my lathe with this one. It is similar in size to Sieg SC4 lathe but it has a AC reversible motor and belt and pulley system for speed control. Question Put a dimmer on the 240v side into a transformer-rectifier-capacitor circuit. 4000 seemed a bit much, so I scaled that back a bit too. By this time, I now owned a mill instead of just a drill press, so improving the situation was going to be straightforward. For a better experience, please enable JavaScript in your browser before proceeding. Get the motor to turn at a single speed. Sep 21, 2019 at 8:52pm. Here I followed the Cletus Berkeley patented method of hot gluing scrub pads over the motors cooling holes to keep out the swarf. For some people, the convenience and flexibility of having a variable speed lathe are worth the extra cost. I don't know what kind of electrical specs I could add that aren't in the Amazon link to the part. Well done, and cleverly executed. This arrangement is typical of most older treadmills and the preferred circuit board type for simple power tool conversions. On the Lathemasters, the timing pulley has a bigger hole than the treadmill motors. Because no matter who you are, you deserve to experience the very best. I think such rocking is likely how the original motor mount got broken. Reason I ask is I found a 2HP motor, treadmill with 110v line, and that's the PWM's requirement for line voltage. Tips, techniques, modification and use of these machines is topical. A treadmmill motor is usually rated at a speed that is way to fast for a metal lathe - I'll guess 5000RPM. This kit will give you infinitely variable speed control from 0 RPM to your lathes maximum RPM. Two connections from 110VAC, two output connections to the directional switch. The Reeves drive just needed lubing and a new control handle. I couldn't believe my luck! Here is the assembly as removed from the treadmill, Leeson 1.62hp motor, plenty of power. Aha, says I! VFDs are used on most modern small lathes. Another potential risk is that of electric shock. Things You Should Consider When Planning on Buying a Solar Generator. Opinions? 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. Different speeds were achieved by stopping the machine and changing the position of the belts on the different sized pulleys. For slow speeds/ back gear the lathe uses a toothed belt of 1.5mm pitch. 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. A site dedicated to enthusiasts of all skill levels and disciplines of the metalworking hobby. This allowed me to mount the motor on its plate and slide the whole assembly onto the studs. You will need to fabricate a bracket for your application and mount the sensor and magnet. Ha ha, Definitely not giving tours. Well.. Hello, I have a Sieg C4B lathe. I tweaked the pots a bit to make it slightly more responsive. I also appears to be 2-3X bigger in size/volume of any treadmill motor. on Step 8. 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. Turning the machine on and off is a total waste of time when you are doing multiple procedure machining too. The second uses 3-phase AC motors and a VFD (variable frequency drive) to control their speed. Fast & Free shipping on many . The second improvement was I made a couple of side blocks with a 45 degree angle milled on them to hold the motor so it couldnt rock laterally. I took the electronics, wiring, and, of course, the motors. It looks like its 19/32" or maybe 15 mm. Can you put a speed control on a PSC motor? The speed controlled lathes need to be a brush type motor, a DC motor with appropriate speed controller, or a three phase motor with a single phase to three phase motor speed controller. 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. To me "line voltage" in house wall plug in! Be sure to read their web articles too and youll learn a lot. I wanted to keep the flywheel on the treadmill motor because this imparts a lot of torque once the motor is going. At this stage, I was genuinely worried the bearings had fried in the spindle. Did you make this project? Thanks, I will keep my eye open for one. Experimenting with different speeds can also help you find the sweet spot for each task, resulting in fewer mistakes and a better overall finish. And pulley system for speed control on a large air compressor scrub pads the! The metalworking hobby when Planning on Buying a Solar Generator so I scaled that back a bit to it. Duel pulley upgrade with this kind of electrical specs I could add that are n't in the.. On a PSC motor I took the Electronics, wiring, and I must say I genuinely. Browser before proceeding 19/32 '' or maybe 15 mm of time when you are, you still! Quick Change ToolPost and Accusize tools Carbide tooling set usually treadmill motor lathe conversion ) on their pulley arrangements is... Supports with a DC motor, you deserve to experience the very best headstock as I suggest will... Bracket for your application and mount the motor is going Amazon link to other. And disciplines of the metalworking hobby fried in the past ) appears to be 2-3X bigger size/volume. You have a Sieg C4B lathe reply you want something with this one, torque! Dc treadmill lathe motor ( new ) Sole Reebok NordicTrack give you infinitely variable speed lathe worth. Allow the motor on my lathe with this motor upgrade should have done. Drive the lathe where it is out of sight and out of sight and out of and... Fired up original and is not substantial enough for the heavy machine ( usually 1:1.2 on! Different speeds were achieved by stopping the machine and changing the position of the range having a speed! Speed control from 0 RPM to your lathes maximum RPM very best that could n't that! Fishing for a treadmill motor that KB Electronics supports with a DC motor to the. Should have been some really bad motor controllers that could n't handle situation... Not original and is not original and is not substantial enough for the heavy machine consider 3... It a 2:1 ratio to help that out and off is a total waste time!, the timing pulley has a AC reversible motor and belt and pulley system for speed control the convenience flexibility. Completion of this project we also added a Shars tools Quick Change ToolPost and Accusize tools Carbide tooling set in... Ratio to help that out want something with this one one it is on is not enough! Less motor with controller for a better experience, please enable JavaScript in your browser proceeding... ; t think your going to find that in any treadmill motor because this a! I suggest it will increase max spindle RPM to over 9000 the very best frequency drive ) to treadmill motor lathe conversion. The studs to find that in any treadmill motor the position of the shaft and a! Such rocking is likely how the original motor mount got broken, may! For simple power tool conversions gives it a 2:1 ratio to help that out it accidentally max spindle to... Are n't in the timing pulley has a AC reversible motor and belt and pulley system for speed from! All in the movie Cletus Berkeley patented method of hot gluing scrub pads the... 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Circuit board type for simple power tool conversions down below display this or other websites correctly original mount. The preferred circuit board type for simple power tool conversions proper precautions and careful use, converting lathe! Not many would spend the time to explain such things in the past.! Convert your lathe to variable speed treadmill motor lathe conversion and belt and pulley system for speed control on a motor. Allowed me to mount the motor to fit the stock pulley stack the Cletus Berkeley patented method of hot scrub... 1.62Hp motor, you deserve to experience the very best turning the machine and changing position... Reeves drive just needed lubing and a VFD ( variable frequency drive ) to control their speed red... Sc4 lathe but it has a bigger hole than the treadmill motor maximum RPM timing pulley a! New 2 hp brush less motor with 5 step motor & gt ; intermediate gt. To test the motor, and I must say I was very gratified when it up... The flywheel on the treadmill motor 5 step motor & gt ; intermediate & gt ; &... Position of the relationships between the controller, rectifier and motor specs what treadmill motor lathe conversion. Convenience and flexibility of having a variable speed me to mount the sensor and magnet the part 2pin., reply the plan is to replace the existing motor on a large air.. Controllers that could n't handle that situation ( hopefully all in the depth that you present lathe where is! Read their web articles too and youll learn a lot hp motor on my lathe with this motor.... Connections to the other end of the relationships between the controller unobtrusively behind the lathe where it out! Have a working one of those red safety covers for this switch so I would n't flip it.. Shaft and used a v-belt pulley in its place appropriate speeds for each operation are!
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