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Messages - cnc-it

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91
The XY and Z Axis are functional with the new AC Servos, Spindle Orientation is functional with the Stepper Motor, the ATC Carousel and Tool Management Software is working, the Spindle is functional under MOD Buss Control, the Draw Bar is operationalÂ….   Time to integrate these systems and test.

<a href="http://www.youtube.com/v/3W-LRS9eSFg&amp;hl=en&amp;fs=1&amp;rel=0&amp;color1=0x006699&amp;color2=0x54abd6&amp;border=1" target="_blank" rel="noopener noreferrer" class="bbc_link bbc_flash_disabled new_win">http://www.youtube.com/v/3W-LRS9eSFg&amp;hl=en&amp;fs=1&amp;rel=0&amp;color1=0x006699&amp;color2=0x54abd6&amp;border=1</a>

Looks great. Just wondering what the max axis rapid speeds will be on this set up and what are the limiting factors ie. hardware or software.

92
Sorry JH forgot you are running single phase..keep up the good work!

John

93
Hi have you still got the Fanuc spindle drive? It should do the spindle orientation and work with the encoder as that is what it is set up to do. Not sure if you could get this to work with Mach though?
I have the same Fanuc drive on my Bridgeport..1984 vintage and still works great...orientation is spot on never misses a beat!

John

94
Show"N"Tell ( Your Machines) / Re: My Balding Beaver
« on: February 14, 2010, 06:45:45 AM »
Good site Hood lots of info on the PDF download. These are the toolchangers used on some of the DMG machines!

John.

95
Show"N"Tell ( Your Machines) / Re: My Balding Beaver
« on: February 14, 2010, 05:37:41 AM »
Thanks  Edvaness must get a cutting movie up when I get chance!

Hood it was a bit slow as it hadn't run for a bit when I took the movie.
Just lack of use :)

I think the tool changer was based on a cincinnati design used on some of their cnc bed mills.

I also like the hotswap type tool changer ...seems to be the way forward on the modern machines.

http://www.haascnc.com/Promos/Prod_Brochure/ebook/HMC_BROCHURE/index.htm#

John






96
Show"N"Tell ( Your Machines) / Re: My Balding Beaver
« on: February 13, 2010, 06:58:50 PM »
Thought you guys might like to see my Beaver mill doing a tool change. Only one tool loaded in the movie but now have all 18 ready to go!
John.

http://www.youtube.com/watch?v=t45eE6aOWrI

97
Hi JH,

Yes I agree unless you put the encoders directly onto the ball screws with couplings it would be hard to improve over the original machine accuracy spec.
I think your calculations are correct just be a case of testing and seeing how well the figures actually come out under machining conditions!

 My Bridgeport is a horizontal and was actually built for Bridgeport by Yasda in Japan under licence so it was built with high accuracy and thermal stability in mind hence the good results I seem to get...but I still think the machine manual is a tad over optimistic!

Great to see a full size machine getting the Mach 3 treatment..looking forward to more updates!

John

98
Not sure about 400 pulses per rev as my old Fanuc DC motors on my Bridgeport BPC320 have 2500 ppr...and the machine is rated at 0.001 mm accuracy but in real terms will manage around 0.005 mm accuracy due to temp change etc.

John

99
Galil / Re: Mitsubishi HF-SE Ac servos and drives.
« on: December 22, 2009, 02:14:01 PM »
I know what you mean about things getting in the way!! I have a Galil DMC 8 axis pci card sitting here..just wish I could find more time to get it set up on something..
John

100
Sounds good JH Would be awsome to see the machine doing rigid tap with Mach!
My friend has a 1995 version of this machine with Fanuc OTMate. They are a little work horse... he cuts aluminium 6082T6 at 1800mm/min no problem, the box ways make it a really solid machine. The Fanuc software is bullet proof too..not tried Mach yet but sounds like rev 4 will be a lot more sorted and I think Brian has finally got cut comp working (G41/42) I use G41/42 all the time on the Fanucs and wouldn't want to be without it!
John

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