Author Topic: Prima Lathe conversion  (Read 26546 times)

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Offline khalid

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Re: Prima Lathe conversion
« Reply #30 on: December 16, 2013, 11:53:56 AM »
Brother, UC300 is bit expensive. I want to know wether UC-100 will work with my Gecko G540 ?... Presently i am running Mach3 at 25KHz and due to limitation i can run my new router at 400IPM without any vibrations/damage. Using 25KHz i can not increase my velocity more than 400IPM. If i increase my Kernel frequency say 100KHz using UC100 i can gain a little more speed say upto 1000IPM. This will be my rapid...

Offline zafarsalam

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Re: Prima Lathe conversion
« Reply #31 on: December 20, 2013, 09:51:46 PM »
The lathe retrofit is complete. Getting 0.001 resolution on both the axes and 5000 mm/min rapids. Using Delta servo motors/drives, Delta spindle encoder and VFD, UC300 motion controller, Euchner MPG, custom designed break out board and of course Mach3. Designed new screens for it and using MPG for FRO and SSO. That's it. Here's a photo.

Offline Hood

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Re: Prima Lathe conversion
« Reply #32 on: December 21, 2013, 04:30:13 AM »
Looking great :) and performance sounds excellent as well.

Hood

Offline khalid

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Re: Prima Lathe conversion
« Reply #33 on: December 21, 2013, 09:22:55 AM »
Love to see more screens pictures :).. Nice work.

Offline RICH

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Re: Prima Lathe conversion
« Reply #34 on: December 21, 2013, 06:44:47 PM »
Nice job.
Since I am only 3'-6" tall i would need an adjustable stand for the screen, but then, your not building it for me.  :D ::)

RICH

Offline khalid

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Re: Prima Lathe conversion
« Reply #35 on: December 21, 2013, 11:42:17 PM »
Rich,
Is that you in your avater?

Offline zafarsalam

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Re: Prima Lathe conversion
« Reply #36 on: December 22, 2013, 01:26:38 AM »
Nice job.
Since I am only 3'-6" tall i would need an adjustable stand for the screen, but then, your not building it for me.  :D ::)

RICH

You can use the same stand which you do for operating the lathe :). Have a nice day.

Offline RICH

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Re: Prima Lathe conversion
« Reply #37 on: December 22, 2013, 06:49:19 AM »
Is that you in your avater?
Nope, the figure is too tall.  :D   It was "gifted" to me a long time ago, so out of appreciation, I kept it.

zafarsalam,
Have lots of portable stands for running machines. One extends to the roof of my house.  ;) :D
So what's the next conversion?

RICH



Offline vre

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Re: Prima Lathe conversion
« Reply #38 on: December 22, 2013, 10:53:08 AM »
Perfect!
The next step is to install automatic tool change turret.. check to aliexpress/alibaba have some cheap-simple chinese auto turrets.
I want to ask you what ballscrews have installed and how much reduction you have ?
Are the rapids 5m/min fast for common applicatons or if it was faster will be better?
I ask you this because i have ordered higher power servos so i have enough torque
to run at higher speed... but higher speed that 5m/min is usable ?

Offline zafarsalam

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Re: Prima Lathe conversion
« Reply #39 on: December 22, 2013, 11:43:55 AM »
vre,

I had limited choice for the ball screws. With this setup I can go upto 20,000 mm/min but it is too much for conventional metal-to-metal contact slides here. So I limited it to 5,000 mm/min to minimize wear on slides. Finer pitch ball screws would have been better here and I could go with less powered servos. With extra power on servos, I can get a high acceleration rate which is useful in machining coarse pitch threads.

Zafar