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Messages - govtool

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1
General Mach Discussion / Changing old laptop to new, axis jumping
« on: February 10, 2015, 11:08:18 AM »
I've recently tried to upgrade from an old toshiba laptop running mach3 on an old mill to a newer dell type and have found with the same settings that the 3 axis are jumping and running rough, could it be that the digital drives need to be retuned, if I reconect the old laptop it runs smooth again.
didn't want to go messing with the drive settings as with the old laptop it runs well.
Old laptop is giving trouble, sometimes wont start and a bit hangy.
I've tried to measure the voltage on the printer port and both seem about 4vdc.

2
General Mach Discussion / Re: Beaver nc 5 atc
« on: June 13, 2011, 06:06:34 PM »
Yea I remember the hurco's westamp drives, jesus it was like an old turbo spinning-up when they energised.
Yea I reckon the intensifier is what I have in the cabinet, how is it controlled, does it recieve a signal and go through a relay loop to energise, de-energise, energise, etc or has it a flip flop valve or something?

Cheers.

3
General Mach Discussion / Re: Beaver nc 5 atc
« on: June 13, 2011, 05:10:45 PM »
Yea it's a bit of a frankenstein, the x and y servo mounts are very retro looking in comparison to the smooth enclosures on your mill,
the x servo sticks out about 8" out front of the table.

The intensifier looks like what you describe.

I thought the same about the ballscrews, the hurco had .2mm backlash on the x and it turned out to be play in the taper bearing, got it down to .02

did your mill originally have linear scales and tachs?

4
General Mach Discussion / Re: Beaver nc 5 atc
« on: June 13, 2011, 04:41:36 PM »
I see on one of your pics you mention an intensifier for the drawbar, I think this may be the odd looking oil pump I found located in one of the cabinets.
What does this do exactly as the one I have seems very complicated?
I am going to lift the head off and remove the whole carousel and toolchange arm then see if I can free out the z axis.
I'll then slide off the table and inspect the ball screws and nuts, can you remember were the ball nuts adjustable?

Did you use the original psu or did you build new?

I love your console, I wouldn't have the ways to make a piece of art like that, I'm going to go with a laptop, I know people advise against them, but I did an old hurco and used one and haven't had any hassle, there neat.

Thats my rough guide and I'm sure it will be strictly adhered to.

Will keep you posted.

Cheers

5
General Mach Discussion / Re: Beaver nc 5 atc
« on: June 13, 2011, 12:09:50 PM »
Hy Hood

what do you think of the head arrangement, fully fabricated, not cast like a bp clone.
I'm just in the middle of stripping off the old anilam linear scales I have an anilam dro on a surface grinder and have checked the scales which are operational, I'll have to get hold of a console to accecpt them.

Do you think the anilam controller is worth saving or should I just scrap, the electronics look clean but I guess that means nout.

I should take some pics of the internals, it's got a strange looking oil pump arrangement in the cabinet on the rhs with the contactors, seems strange I would imagine it's a retrofit maybe the original oiler on the back went south.

The knee also has a an ac motor on it with a 2 way switch to allow auto feed up and down, could be converted to servo in place of the spindle z to give more z travel, but I'd imagine it'd be a lot heavier for drilling than the original design.

I've found serious backlash in the x so I'm going to strip it down and check the thrust bearings and ball screws.


I'll take more photos tomorrow.

Cheers

6
General Mach Discussion / Re: Beaver nc 5 atc
« on: June 13, 2011, 10:12:39 AM »
last one

7
General Mach Discussion / Re: Beaver nc 5 atc
« on: June 13, 2011, 10:11:21 AM »
some more resized

8
General Mach Discussion / Re: Beaver nc 5 atc
« on: June 13, 2011, 09:45:58 AM »
and more

9
General Mach Discussion / Re: Beaver nc 5 atc
« on: June 13, 2011, 09:44:04 AM »
some more

10
General Mach Discussion / Re: Beaver nc 5 atc
« on: June 13, 2011, 09:42:24 AM »
Some photos

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