CMS MAXIMA 4 axis Machine retrofit

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23 Feb 2019 09:35 #126993 by Yannis
Hi to the forum
I will begin retrofit the CMS MAXIMA 4 axis machine X Y Z C (i intent to add A axis as rotary axis in X direction)
After struggling with the Fanuc motors i decide to replace them with Chinese
The machine is a very a well made production machine
I intent to use MESA CARD for the task since i m very satisfied from there performance in my other retrofit with linuxcnc
of a INTERMAC machine
But in this case i have to control step and dir so 5i25 and 7i77 combo is out of the question
Since this will be a production machine i wool like to be careful with details
So first of all what type of pc sud i use? (with 200 euro i can find some old workstation with Xeon or some i5 with 4 giga ram)
And what type of Mesa sud i prefer the 5i25 7i76 or the one with the Ethernet connection 7i76E
Thanks

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23 Feb 2019 11:35 #126995 by pl7i92
USE the 7i76E
this will give you a nice modern machining
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23 Feb 2019 12:19 #127002 by tommylight
Workstations with Xeon's tend to be very good for Linuxcnc.
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23 Feb 2019 15:02 #127007 by pl7i92
What size does your maxima have
this Gantry CMS can be huge
and offen they got troubeling double axes so a new liniarencoder is needed

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24 Feb 2019 09:54 - 24 Feb 2019 09:57 #127041 by Yannis
the working dimensions are 3700 mm in X axis 3500 mm in Y axis and 400 mm in Z axis. C axis have continuous rotation.
The machine have one motor on each axis so there is no need for 2.8 edition of linuxcnc
Last edit: 24 Feb 2019 09:57 by Yannis.

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25 Feb 2019 06:09 #127083 by Yannis
One more questionfor the pc: is it preferable ssd or hdd as memeory

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25 Feb 2019 07:44 #127089 by pl7i92
it is Your Personal issue
In Hard Envirerment SSD will be more Stable
if it is in a Shielded Rack beside the Mashine HDD is a best guess as the price is only Half and Double Size
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25 Feb 2019 18:40 #127113 by tommylight

Yannis wrote: One more questionfor the pc: is it preferable ssd or hdd as memeory

SSD if you can afford it, always.
No difference at all if you are using Mesa cards for motion control, but it does make a difference if using software stepping and parallel port, the latency is much better due to much faster access times of the SSD.
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12 Apr 2019 09:18 - 12 Apr 2019 09:38 #130725 by Yannis
Hi
After long time the pc has arrived. I think that the pc have more then enough capabilities for the job
Also i order the 7i76E mesa from Eu surplus but there is a delay from the manufacture.
i wool like your suggestion for the linux distro. I use debian on the Inermac machine and i m very satisfied
from the behavior . I try to use linux mint in a virtual machine with no success
Is there other suggestions?
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Last edit: 12 Apr 2019 09:38 by Yannis.

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13 Apr 2019 01:42 #130753 by tommylight
That is a nice workstation and i know for sure that Liinux Mint 17,2 and 18.1 work on it perfectly.
The testing version of Linuxcnc based on Debian Stretch should work properly, it is a ready made iso.
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