I was hoping for some information what motor, gearing or controller...but I got/heard NOTHING...NO INFO AT ALL...An almost useless video...Really...who has not already see a lathe run/ cut......
very satisfying sound, smooth. The DC motor is quiet and smooth running. I have the original motor on mine and it hums and periodically the sound goes up and down. Must be the bearings so will change those out. Want to keep the original as long as I can. But I must say changing the speed on a fly with VFD is neat, I dont much like changing them O ring belts but its not too bad. Great little true running machine.
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'm considering buying this lathe used as I'm interested in machining. Does anyone know if this lathe would be a good lathe to learn on? I'm 22 and a student so the cheap price would make it really convenient. And then i could swap the motor down the road. Great video👍
Yes I bought this when I was a student and it was very helpful. You can cut up to 50mm diameter in soft metal/plastics. The best point for me is the compact size, it can be moved by hand unlike other lathes. That being said, these machines are quite expensive now. I believe I would rather go for a larger, older lathe you could find locally on Facebook or something similar. You will get a much more capable machine for a few hundred £. When I bought this Emco they were reasonably priced still. You could get a Myford/boxford or similar for what they cost now. Regardless, having a lathe will really help you improve skills as a student, as it did with me a few years back
It have power but it can make the feed spindle therad be damage for sure. Imaked exactly like this but its wrong . Normally small lathes are for small parts so if you like to see big cheaps irecomend buy one big machine. Ilive in Austria also iworked in emco company more then 8 years.
uk.rs-online.com/web/p/timing-belts/1821305 I used a 9mm wide version but any will do. I suggest using rubber pulleys though as they are very smooth running and have lots of grip. They can be made to any size easily
I put a 100 watt 120VDC DCPM motor with variable speed control box on my Unimat SL1000/DB200. what a difference! but now I have an unused unimat motor and two pulley plates and pulleys just sitting around. no matter. good vid. also, like the digital caliper axis scales. you make them or where did you get them?
Nice work, yeah it makes the lathe quite a bit more effective I've found. The scales are just 150mm £10 callipers which I cut up and drilled into. The hardest part was finding somewhere to tap and fit them to the lathe/crossslide but it works
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.
Nice chuck - seems much larger than the standard emco one? I have the same machine but I haven't got round to using it yet - the old motor is pretty worn and am considering a brushless upgrade. Where did you get the indexer from, if you don't mind me asking? Nice one on the pulleys as well - when mine give out I'll know who to turn to :P
The chuck came with a few extras when I bought the lathe. I tend to use this keyed one more oftern than the thin chuck. It is made by emco. I spent sometime looking at brushless motors but the options for RPM and speed control are not are desirable at a large DC motor from my research. Check out my other videos to see the motor setup details. The Indexer is a cheap 75mm table from India, about £60 new. Thanks
Hello Bravo for the pulley test; I inherited a Unimat3 without the motor mount and fixing. Would you be kind enough to provide me with a side drawing of this part and also STL files of the round pulleys thanks in advance I can buy these STLs with paypal
Great video! Thanks for it. Would be great though to show how to take this lens apart from the actual Yashica. Mine is a little bit stiff on the focussing ring.
That's tricky because the lens is mounted on a board and you'll have to remove that board to get to the three rear lens screws, unless I'm mistaken. There's a few videos on this.
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
Hello, I am an audience from China, very admire your practical ability! Great project! Now I want to modify this lens and ask for your help. My English is not good, so I use the translation software hahahahaha:-)
I bought the Unimat 3 when it first came out, i still have it. It’s a beautiful thing, but never had enough power. Using it could be a real pain. I finally relegated it to the vertical precision drillpress mode.
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.
Yes I still need to test this with some bigger loads. The belt texture and pulley finish does give a much better grip than the standard O-ring and aluminum pulleys though, so I am hopeful. Now I just need to finalise the pulley design so that it doesn't warp when clamped to the axle, but its almost there
That is a great video and set up! I have now purchased one of these motors and control units but it didn't come with pulleys and a matching toothed belt. Where did you get yours or did you make it? Thanks, Paul
