Please see listings for more information on motor kits: www.ebay.co.uk/usr/proprietar... Contact: elliswtp@gmail.com 150W motor upgrade with speed control for Unimat 3 and similar mini lathes.
Interesting to see what you have done. Thanks for sharing. One thing comes to mind: With the larger pulley on the motor you've got tremendous speed for the spindle but lacking torque. Better to go the other way, Belt reduction to spindle - More torque delivered to work, less droop under load, less motor heating.
Hello. That’s a beast. You better be ready to answer some ? That’s best Unimat 3 I’ve seen on here. Like the dro to its great 👍🏻 keep them video’s rolling and stay safe.
@@proprietarysonics3723 I fitted a 3 phase 1/3 HP 3,000 rpm motor with a VFD......you can get infinite control using a 3 phase motor and VFD. To get the torque for low speed work I used a 1:3 belt reduction with speed range 0 to 1,000 rpm.
The autofeed attachment is very clever, but the ratio between the spindle and screw is quite high and unadjustable, so I always found the feed to be too fast. I have been thinking about making an autofeed system by having a small motor behind the lathe and a belt running to a pulley that fits right over the feed handle. It would need some kind of clutch though I suppose
Looks like the outrageously expensive Bison M14x1 baby chuck. Still made in Poland but even the key and replacement jaws are silly money. Sometimes come up 2nd hand, but may need tidying up.
That caliper thing....it is fu***n BRILLIANT !!!!
Interesting to see what you have done. Thanks for sharing.
One thing comes to mind:
With the larger pulley on the motor you've got tremendous speed for the spindle but lacking torque. Better to go the other way, Belt reduction to spindle - More torque delivered to work, less droop under load, less motor heating.
i hope the first part u are gonna make is a pulley for the chuck spindle
Hello. That’s a beast. You better be ready to answer some ? That’s best Unimat 3 I’ve seen on here. Like the dro to its great 👍🏻 keep them video’s rolling and stay safe.
Thanks! yes it performs quite well now. I am working on some new upgrades, such as an indexible z axis hand wheel too. -Ellis
@@proprietarysonics3723 I fitted a 3 phase 1/3 HP 3,000 rpm motor with a VFD......you can get infinite control using a 3 phase motor and VFD.
To get the torque for low speed work I used a 1:3 belt reduction with speed range 0 to 1,000 rpm.
To high a spindle speed. Include a slow drive pulley for effective torque please. You may increase the diameter of spindle pulley.
Would be nice to keep the autofeed thingy
The autofeed attachment is very clever, but the ratio between the spindle and screw is quite high and unadjustable, so I always found the feed to be too fast.
I have been thinking about making an autofeed system by having a small motor behind the lathe and a belt running to a pulley that fits right over the feed handle. It would need some kind of clutch though I suppose
What kind of motor and speed control are you Using? Nothing is on your ebay site
Its a 150W 24V DC motor used in electric bikes/scooters. Speed control is PWM voltage controller, rated to 15 amps
There will be listings in a few days or you can email me.
what listing, no motor kits ?
Please email if you are interested. Some kits will be available on eBay in several weeks. Many thanks
What kind of motor does it using ? Dc 750w 500w or ?? Please
150W DC motor, ZY6812. There is a 500W version too
What power supply are these motor using?
eBay link not working
Hi, I will be listing on eBay in a few days or you can email me. thanks
Hello, where find a nice chuck like that ? What is the brand ? Thank you
Hi, I've just bought one like that for my micro lathe, it's a scroll chuck, 80mm diam, made by Sanou and cost me A$115 on EBAY.
Looks like the outrageously expensive Bison M14x1 baby chuck. Still made in Poland but even the key and replacement jaws are silly money. Sometimes come up 2nd hand, but may need tidying up.
crap