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kiwi_007

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Quite sometime ago I came across some pics of a Taiwanese belt drive lathe that has a few modifications that interested me.

I've attached a couple of pics and if you take a look at them you can see the spindle belts have been changed from V belt to multi V belt, obviously the motor is now either a DC motor or a 3phase with a VFD. Another mod is the spindle has been changed to D1-4 and looking at it the feed screw has a separate variable speed motor driving it.

Has anyone seen any write up about the modifications on this lathe? Thanks
 

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Probably a one-off, either he made the pulleys from scratch or adapted ones from the automotive world
Can't see any great advantage over V-belts unless the original pulley(s) were broken and this was done to make the machine operational again
-Mark
 
markba633csi said:
Probably a one-off, either he made the pulleys from scratch or adapted ones from the automotive world
Can't see any great advantage over V-belts unless the original pulley(s) were broken and this was done to make the machine operational again
-Mark
Click to expand...
Yes I'd say it was a one off modification that someone did to their taiwanese belt drive lathe.
Multirib belts do have some advantages over normal V belts, if it lasts twice as long before needing replaced then I can certainly see that as a very good advantage.
One of the biggest improvements I see is the D1-4 spindle as opposed to the threaded spindle, this gives a lot of advantages.

It would be good to get some information on what was needed to make the change from the threaded spindle to the D1-4 spindle.
 
Either an adapter was installed over the existing threads or, if he had access to a much larger lathe, an entire new spindle was fabricated.
A third possibility is that a spindle from another lathe was adapted
-M
 
That is the work of Dennis Turk. He posted details awhile back on a facebook group Benchtop Lathes & Mills (link below). If you do a search for his name within the group and scroll back far enough you'll find the pics. If that doesn't work then send me a msg with your email and I'll send you his pics and explanations of the work.

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This looks like a CNC conversion. The driven pulley is not only converted to a timing type belt (correction; actually serpentine) but the other side of the pulley has been segmented probably for an optical reader. Looks like there's also an electronic lead screw.
 
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The multi-rib belt pulleys scream automotive serpentine drive.
But he stopped short and left the motor drive belt in the v configuration
 
bl00 said:
That is the work of Dennis Turk. He posted details awhile back on a facebook group Benchtop Lathes & Mills (link below). If you do a search for his name within the group and scroll back far enough you'll find the pics. If that doesn't work then send me a msg with your email and I'll send you his pics and explanations of the work.

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Click to expand...

Just the information I needed, Thanks bloo
 
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