Hey thanks so much for your great question, I did get a couple of questions asking for models for specific parts, but you are the first to ask for the full list. I have now created a detailed list of all the parts that I have used and included them in the description of the episode 11 of this series. Please check it out, and let me know if you have any further questions.
Wow! First comment of the series, thanks! In this episode I was just checking if the motor worked at all. In episode 3 the cover for the motor compartment is added, along with some other motor related stuff. Check it out if you like!
Don't know if they're commonly available but maybe have a look for a planetary gearbox for the front of that motor. They just bolt straight on and you can get them with the same output shaft generally. I honestly think you need to gear this down a bit. You're in low gear on the head stock there and it's doing pretty high RPM. For many lathe operations you want low speed and heaps of torque. An example is when you have unballanced stock in the chuck for face machining (making anything square or rectangular). Also for threading you generally want torque at low speed. Just from looking at it I think you could gear that down about 10:1 or 20:1. The high speed of the mini lathes is not as useful as low end torque IMHO. I understand why you're changing the motor, I blew mine up years ago, thought about replacing it with a treadmill motor but ended up buying a decent sized lathe. If you decide to do the same and like machining don't sell your mini lathe if you ever want to buy a decent sized milling machine, the headstocks on these make an awesome 4th axis on a mill ;).
Thanks for the comment Mr. Munns. My idea was to try to match the original speed specs of the Mini-Lathe specs as much as possible, but I wanted to get a bit more power and stable speed control. The brushless motor I chose also had to be simple, solid but cheap. I often do pretty small stuff down to 3mm if the past, so I don't mind having the RPM's available to get a nice surface finish. Don't use the high gear all that often, but it's nice to have it on hand. I reckon I am seeing at least 4 times or more torque with that compared to the original motor, so it's pretty nice. Really the only thing I will likely change at sometime in the future is changing the BESC to be of the sensored type. That should give me access to even lower speeds and smooth startup under any scenario. Sensorless brushless motors can be a bit jumpy to start in some conditions. It's probably important to note that it looks like there is nearly enough torque in that motor to rip to tool post off the compound.. so as much as I would like even more torque, I suspect it would be pushing that little mini-lathe too far, and it would likely end in tears (and injury maybe). As for a big lathe or a mill.. I could only dream.. Sadly I live in the middle of a big city in Japan where space is a premium.. Maybe I will move to the country in retirement and be able to get one then. One can always dream!
@@ForOurGood No worries, thanks for the videos, enjoyed your journey with this. I hope to get over to Japan some day. My mate went over a few years back, he said it was an awesome place.
@@edmunns8825 Thanks for taking the time to watch the series, and happy to hear you found them interesting! Maybe I will do a few more videos on the mini-lathe soon, I seem to be bouncing around with various topics lately.
@@ForOurGood so I’m basically following you step for step for my own watchmakers lathe…. But I got a 12v power supply and the motor really doesn’t like something. And I’m guessing that’s it
@@simmssg 12V should spin up good enough assuming it can put out decent amps. But the max RPM will be about a half. What is the KV rating of your motor and how many amps can your 12V PSU put out?
@@ForOurGood so I think I got the same motor as you 6364-200kv and the power supply says 10amps… thank you again for being so helpful…. If it helps you help me… I could send you a quick video of my set up with it “running” Thanx again
@@simmssg Sure, take the video and I will take a look. Actually I had allot of trouble with the cheap BESC I am using, so I ended up using some old 60A RC helicopter BESC I had to check the motor using 11.1V LiPo battery, it span up fine and smoothly. ( I would not put it under super heavy load however). Anyway, I generally have not found the motor to cause a problem so far. I suggest you take it out of the lathe and bench test some different combinations of BESC and power source if you can, and do some testing. For me I used leather gloved well protected hand to vary the startup load (some danger involved of course, do at your own risk!), and load when spinning, to check how the motor behaved. Once you feel confident with what you are seeing then stick it back in the lathe, assuming your gear train is spinning freely it should work. Also, a 10A @ 12v PSU is only going to give you theoretical max power of 120watts, throw in some margin and you probably should expect maybe max 80W usable power. Now it's going have to be a pretty tiny lathe with super light loads for that to be usable amount of power. For your reference I am using a 1500W 24V power supply, expecting to get a usable 800W. To date I have only measured peak loads of maybe 500W. (Hindsight tells me a 1000W PSU maybe would have been fine, but better to many than too few watts). As stated before higher volts will definitely give you higher max RPM (maxRPM = KV x Volts), but as long as your PSU can stably provide enough amps to reach that maxRPM under loaded conditions, then using the 12V should not be consequential for allowing a smooth spin up of the lathe. (Well at least as per my experience)
Huh, your right, in some shots it looks like the chuck is spinning backwards. But it's actually spinning the right way. This must be a camera shutter effect which is more noticeable at some speeds. Thanks for the comment!
Could you share part numbers and/or links if you have time? Interested in a similar upgrade, but unsure of specific components. Thank you!
Hey thanks so much for your great question, I did get a couple of questions asking for models for specific parts, but you are the first to ask for the full list. I have now created a detailed list of all the parts that I have used and included them in the description of the episode 11 of this series. Please check it out, and let me know if you have any further questions.
@@ForOurGood Thank you!
Looks good. I would design some kind of shield around that motor to keep the chips and other debris out of it.
Wow! First comment of the series, thanks! In this episode I was just checking if the motor worked at all. In episode 3 the cover for the motor compartment is added, along with some other motor related stuff. Check it out if you like!
Don't know if they're commonly available but maybe have a look for a planetary gearbox for the front of that motor. They just bolt straight on and you can get them with the same output shaft generally. I honestly think you need to gear this down a bit. You're in low gear on the head stock there and it's doing pretty high RPM. For many lathe operations you want low speed and heaps of torque. An example is when you have unballanced stock in the chuck for face machining (making anything square or rectangular). Also for threading you generally want torque at low speed. Just from looking at it I think you could gear that down about 10:1 or 20:1. The high speed of the mini lathes is not as useful as low end torque IMHO. I understand why you're changing the motor, I blew mine up years ago, thought about replacing it with a treadmill motor but ended up buying a decent sized lathe. If you decide to do the same and like machining don't sell your mini lathe if you ever want to buy a decent sized milling machine, the headstocks on these make an awesome 4th axis on a mill ;).
Thanks for the comment Mr. Munns. My idea was to try to match the original speed specs of the Mini-Lathe specs as much as possible, but I wanted to get a bit more power and stable speed control. The brushless motor I chose also had to be simple, solid but cheap. I often do pretty small stuff down to 3mm if the past, so I don't mind having the RPM's available to get a nice surface finish. Don't use the high gear all that often, but it's nice to have it on hand. I reckon I am seeing at least 4 times or more torque with that compared to the original motor, so it's pretty nice. Really the only thing I will likely change at sometime in the future is changing the BESC to be of the sensored type. That should give me access to even lower speeds and smooth startup under any scenario. Sensorless brushless motors can be a bit jumpy to start in some conditions. It's probably important to note that it looks like there is nearly enough torque in that motor to rip to tool post off the compound.. so as much as I would like even more torque, I suspect it would be pushing that little mini-lathe too far, and it would likely end in tears (and injury maybe). As for a big lathe or a mill.. I could only dream.. Sadly I live in the middle of a big city in Japan where space is a premium.. Maybe I will move to the country in retirement and be able to get one then. One can always dream!
@@ForOurGood No worries, thanks for the videos, enjoyed your journey with this. I hope to get over to Japan some day. My mate went over a few years back, he said it was an awesome place.
@@edmunns8825 Thanks for taking the time to watch the series, and happy to hear you found them interesting! Maybe I will do a few more videos on the mini-lathe soon, I seem to be bouncing around with various topics lately.
How many Volts is your power supply out put
It's a 24V and supposedly 1500W. It has some adjustability so I think I pumped it up to 24.6V. Thanks for the question!
@@ForOurGood so I’m basically following you step for step for my own watchmakers lathe…. But I got a 12v power supply and the motor really doesn’t like something. And I’m guessing that’s it
@@simmssg 12V should spin up good enough assuming it can put out decent amps. But the max RPM will be about a half. What is the KV rating of your motor and how many amps can your 12V PSU put out?
@@ForOurGood so I think I got the same motor as you 6364-200kv and the power supply says 10amps… thank you again for being so helpful…. If it helps you help me… I could send you a quick video of my set up with it “running”
Thanx again
@@simmssg Sure, take the video and I will take a look. Actually I had allot of trouble with the cheap BESC I am using, so I ended up using some old 60A RC helicopter BESC I had to check the motor using 11.1V LiPo battery, it span up fine and smoothly. ( I would not put it under super heavy load however). Anyway, I generally have not found the motor to cause a problem so far. I suggest you take it out of the lathe and bench test some different combinations of BESC and power source if you can, and do some testing. For me I used leather gloved well protected hand to vary the startup load (some danger involved of course, do at your own risk!), and load when spinning, to check how the motor behaved. Once you feel confident with what you are seeing then stick it back in the lathe, assuming your gear train is spinning freely it should work. Also, a 10A @ 12v PSU is only going to give you theoretical max power of 120watts, throw in some margin and you probably should expect maybe max 80W usable power. Now it's going have to be a pretty tiny lathe with super light loads for that to be usable amount of power. For your reference I am using a 1500W 24V power supply, expecting to get a usable 800W. To date I have only measured peak loads of maybe 500W. (Hindsight tells me a 1000W PSU maybe would have been fine, but better to many than too few watts). As stated before higher volts will definitely give you higher max RPM (maxRPM = KV x Volts), but as long as your PSU can stably provide enough amps to reach that maxRPM under loaded conditions, then using the 12V should not be consequential for allowing a smooth spin up of the lathe. (Well at least as per my experience)
Its running backwards?!
Huh, your right, in some shots it looks like the chuck is spinning backwards. But it's actually spinning the right way. This must be a camera shutter effect which is more noticeable at some speeds. Thanks for the comment!
Sadly a little bit to less torque at output. Maybe you can work out foam with this lathe xD
Yes, your correct, it cuts foam just fine. Thanks for your comment and support ;-)