On Sun, 19 May 2019, Davide wrote:
Date: Sun, 19 May 2019 16:26:26 +0200
From: Davide <[email protected]>
Reply-To: "Enhanced Machine Controller (EMC)"
<[email protected]>
To: [email protected]
Subject: [Emc-users] Unusual help request.
Hi, I have a strange setup to solve. So I'm asking you an help, on the top
of your knowledge (sorry for any language mistake) Some time ago I have
built an inverted wire tetrapod, which was made by 4 winches placed at a max
distance of 20 meters one each other in a rectangular shape. So until now it
was ok to have a 48v 20A DC power supply and a parallel bob near my pc (an
asrock q1900b-itx), and transmit step/dir signals thru ethernet cables to
the stepper drivers inside the winches.
Now I have to modify that to make a very little object fly inside a soccer
arena, so the motors will be placed at 80 meters one each other, and i'm
really worried that a step every 10 will arrive to the drivers, if any at
all.. The further motor will be at 150mt if I'm lucky..
An idea can be a mesa ethernet card, but I should use 4 of them, so I'm
asking you if you think is possible to make 4 of them work with linuxcnc?
Another can be convert in some way step dir signals to optic fiber
transport. But i couldn't find anything to buy.
Any other suggestion?
Thanks, Davide.
150 meters is no problem for 100 KHz RS-422 (Spec is 1220 meters at 100 KBPS
~= 50K steps/second) So just using good line drivers/ receivers should be fine
It may even work with differential drivers and normal opto-isolated step motor
drives driven differentially
_______________________________________________
Emc-users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/emc-users
Peter Wallace
Mesa Electronics
_______________________________________________
Emc-users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/emc-users
