[Emc-users] installing linux mint 17.3 64bit how to from the forum + Mesa 7I76E

[linden]

Re forum link below
installing linux mint 17.3 64bit how to
https://forum.linuxcnc.org/9-installing-linuxcnc/32140-installing-linux-mint-17-3-64bit-how-to

The other day when I tried to respond on the forum it seemed to be down 
so I will respond here as now it is up again I cant seem to log in. 
(finger problems on my part most likely)

First off thanksEric282000  for sharing this and the patched kernel I 
followed your instructions and every thing worked almost on the first 
try there were just a few more unmet dependencies that I had to install 
before LinuxCNC would compile. Then after reboot

uname -a.
reports 4.1.36-rt42.

After configuring eth1 IPV4 Settings to:
Manual
Address: 192.168.1.24
Netmask: 255.255.255.0
Gateway: 192.168.1.1

I can run in terminal

halrun
loadrt hostmot2
loadrt hm2_eth board_ip=192.168.1.121
show pin

and get a list of all the pins and how they are configured.

I am pretty happy!! Things are talking to each other.

Now I just need some bits and pieces for this board to talk to.  I am 
sure I will have some questions soon but thought these scribble notes 
may be of use to someone.

Linden









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[Emc-users] Bout time for a new subject from me, how about motor dampers?

[Gene Heskett]

Greetings;

I have this thing running well enough that its cut some lathe-pawns out 
of air and usually winds up with the toolpost within a thou of where it 
started.

Hawever the curves in this chess game piece have also served to 
demonstrate that this little 225 oz motor may not be the endall as it 
has on several occasions suffered a stall at about 30 IPM.  At 20 its 
fine, and at 40 its fine, but its having trouble getting past 30, 
particularly when slowing down. Now, I know that my long steel bobbin 
with 8 or so huge fenders lightly squeezed with a layer of 1/8" powdered 
sheet rubber per washer work great on exactly this motor, easily 
doubling its top speed on my mill and on TLM's z motor. But where this 
motor is on the sheldon, behind the new apron, I do not have room for 
one of those as they are 3 to 3.5" long.

But I would have room for a narrow roller skate wheel with maybe 10 
buckshot in cross drilled holes about 1/16" bigger than the buckshot, 
with the hole half filled with heavy chassis grease, retained by 
threaded plugs, or maybe tight fitting plastic plugs glued in to keep 
the grease from flying away.

Is any one selling such a critter, or do I have to make a onsie? 

I've bought 2 more triple stack motors, about 2x the torque of this one, 
one of which is single ended, one a 4 wire, one an 8, both read like 
they'd be happy on this M542T driver if the driver is happy at full 
song.

Thoughts?

Thanks.
Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page 

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