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  • PCW
  • PCW's Avatar
18 Nov 2024 03:20 - 18 Nov 2024 03:36
Replied by PCW on topic mesa 7i96s analog spindle

mesa 7i96s analog spindle

Category: Driver Boards

Did you verify that the feedback is in the correct direction?
it does look like a runaway which would be expected if the feedback is reversed

Also for the orient PID I would set FF1 to 0 and P to say 10
so its easier to see whats happening and you don't get immediate
uncontrolled motion.

This loss of control/runaway may also be because orient PID output sign
does not change the spindle direction (that I can see)
 
  • rajsekhar
  • rajsekhar
18 Nov 2024 03:18
Replied by rajsekhar on topic 10 or 11 stepgen

10 or 11 stepgen

Category: General LinuxCNC Questions

Well, I have attached the brochure for 5 axis BOB.

I have used such board earlier.

Now, can I use it through a parallel port of the computer for stepgen while having Mesa 7i92+daughter cards ?
  • Philip Lydin
  • Philip Lydin
18 Nov 2024 02:15
Replied by Philip Lydin on topic mesa 7i96s analog spindle

mesa 7i96s analog spindle

Category: Driver Boards

when i try to orient ( m19 r0 ) it speeds up to 1300 rpm which is the same rpm as when i command m3 s1000 and it doesnt do anything.


 

File Attachment:

File Name: orient.txt
File Size:7 KB
  • shaying526
  • shaying526
18 Nov 2024 01:23
Replied by shaying526 on topic How to move a variable value with G-code

How to move a variable value with G-code

Category: G&M Codes

Thank you for your reply. It's very clear and I will read it carefully
  • smc.collins
  • smc.collins
18 Nov 2024 01:15 - 18 Nov 2024 01:16
Replied by smc.collins on topic Trajectory Planner using Ruckig Lib

Trajectory Planner using Ruckig Lib

Category: General LinuxCNC Questions

the faster the pulse count, and the smaller the unit of measure, at a fixed frequency, the bigger the problem becomes. I am referring to a edge case but it is something to beware of. 
  • dbtayl
  • dbtayl
18 Nov 2024 01:01 - 18 Nov 2024 01:05
Replied by dbtayl on topic Strange motion offsets in one direction on one axis

Strange motion offsets in one direction on one axis

Category: General LinuxCNC Questions

Oh, it is a little baby machine by many measures- 1 kW spindle, 12x6x10" XYZ travel or so, etc. Weighs, I dunno, maybe 500 lbs? I built it with a welded steel frame filled with epoxy granite, with proper linear bearings and ballscrews (to be fair, I got nice THK linear bearings, cheaped out on the ballscrews), so hobby bench mill sized, but with way more rigidity. The BT30 spindle is probably overkill, but it was available, and there's a lot of tooling options. TTS didn't seem like a great option, and ISO20 seemed too small.

Aside from this issue popping up, it's been a great experience coming from the gantry-style machine I'd been tweaking for years. The rigidity, Z height, and toolholders are the huge upgrades, but the MPG, touch probe, covered ways, coolant control, spindle/axis stall-detection, and servos are very nice as well. Having a spindle with enough torque at reasonable RPMs to actually handle (small) drills is still blowing my mind.

Sorry for the crappy picture- literally just walked over to snap it, so you can see it's a bit disassembled for debugging (and with random scrap taped over the t-slots so I didn't have to clean them out). That's a Kurt 4" DX4 vise for scale.
  • PCW
  • PCW's Avatar
18 Nov 2024 00:04
Replied by PCW on topic mesa 7i96s analog spindle

mesa 7i96s analog spindle

Category: Driver Boards

May need someone familiar with spindle orientation
to debug this but the orient P and FF1 terms do seem
very high.

What happens when orient is attempted?

dumping all orient related pins/signals may help

So when you do an orient operation, run this command:

halcmd show all  | grep orient

 (in a terminal)

or

halcmd show all  | grep orient > orient.txt

and post orient.txt here



 
  • Philip Lydin
  • Philip Lydin
17 Nov 2024 23:45
Replied by Philip Lydin on topic mesa 7i96s analog spindle

mesa 7i96s analog spindle

Category: Driver Boards

im trying to do orientation but cant get nothing to work. the encoder is working but still it isnt closed loop and no orientation what so ever. hopefully you can see something wrong in my files haha.

File Attachment:

File Name: 7i96s_2024-11-17.hal
File Size:12 KB

File Attachment:

File Name: 7i96s_2024-11-17.ini
File Size:5 KB
  • PCW
  • PCW's Avatar
17 Nov 2024 23:34
Replied by PCW on topic Fanuc Serial Pulse Coders - Red cap servos, mesa 7i76e, how to?

Fanuc Serial Pulse Coders - Red cap servos, mesa 7i76e, how to?

Category: Driver Boards

You need to also set the FANUC interface timer to  timer you  have setup
(like timer 1) I don't know the name of the pin off hand but listing
all the fanuc pins should find it. Do you have a oscilloscope available?

With the AA64 setup you should get a 8 usec request pulse (+ to REQ+ and - to REQ-)
at the servo thread rate, The encoder should respond with 77 bits of data on the +/-
DATA lines

Note that the default AA64 setup is for a 64K count/turn encoder so wont be right
but should show some data. The correct setup for your 1m count/turn encoder
would need the appropriate setup string

 
  • Bennett
  • Bennett's Avatar
17 Nov 2024 23:10
Replied by Bennett on topic Fanuc Serial Pulse Coders - Red cap servos, mesa 7i76e, how to?

Fanuc Serial Pulse Coders - Red cap servos, mesa 7i76e, how to?

Category: Driver Boards

Thanks, I have experimented with the polarity of the data and request lines with no changes. Here's where I left off in the .hal based on what I could find here on the forum. I think I have added the initialization of DPLL but not sure about setting the timer.
# Fanuc Encoder Test .hal

# kinematics
loadrt [KINS](KINEMATICS)

# motion controller
loadrt [EMCMOT](EMCMOT) servo_period_nsec=[EMCMOT](SERVO_PERIOD) num_joints=[KINS](JOINTS)

# hostmot2 driver
loadrt hostmot2
loadrt [HM2](DRIVER) board_ip=[HM2](ADDRESS) config="num_dplls=-1 fanuc_chan_0=AA64 sserial_port_0=00000000"

setp hm2_[MESA](BOARD).0.watchdog.timeout_ns 5000000

setp hm2_7i97.0.dpll.01.timer-us -100

loadrt pid names=pid.x

# THREADS
addf hm2_[MESA](BOARD).0.read servo-thread
addf motion-command-handler servo-thread
addf motion-controller servo-thread
addf pid.x.do-pid-calcs servo-thread
addf hm2_[MESA](BOARD).0.write servo-thread

# amp enable
net motion-enable <= motion.motion-enabled

# Global PWM setup
setp hm2_[MESA](BOARD).0.pwmgen.pwm_frequency 48000

# Board: 7i97

# Axis: X Joint: 0 Output: 0
# PID Setup
setp pid.x.Pgain [JOINT_0](P)
setp pid.x.Igain [JOINT_0](I)
setp pid.x.Dgain [JOINT_0](D)
setp pid.x.bias [JOINT_0](BIAS)
setp pid.x.FF0 [JOINT_0](FF0)
setp pid.x.FF1 [JOINT_0](FF1)
setp pid.x.FF2 [JOINT_0](FF2)
setp pid.x.deadband [JOINT_0](DEADBAND)
setp pid.x.maxoutput [JOINT_0](MAX_OUTPUT)
setp pid.x.error-previous-target True

# joint-0 enable chain
net joint-0-index-enable <=> pid.x.index-enable
net joint-0-index-enable <=> joint.0.index-enable
net joint-0-index-enable <=> hm2_[MESA](BOARD).0.encoder.00.index-enable

net joint-0-enable <= joint.0.amp-enable-out
net joint-0-enable => pid.x.enable
net joint-0-enable => hm2_[MESA](BOARD).0.pwmgen.00.enable

# PWM Generator setup
setp hm2_[MESA](BOARD).0.pwmgen.00.output-type 1 #PWM pin0
setp hm2_[MESA](BOARD).0.pwmgen.00.offset-mode 1 # offset mode so 50% = 0
setp hm2_[MESA](BOARD).0.pwmgen.00.scale [JOINT_0]SCALE

# ---Encoder feedback signals/setup---
setp hm2_[MESA](BOARD).0.encoder.00.counter-mode 0
setp hm2_[MESA](BOARD).0.encoder.00.filter 1
setp hm2_[MESA](BOARD).0.encoder.00.index-invert 0
setp hm2_[MESA](BOARD).0.encoder.00.index-mask 0
setp hm2_[MESA](BOARD).0.encoder.00.index-mask-invert 0
setp hm2_[MESA](BOARD).0.encoder.00.scale  [JOINT_0]ENCODER_SCALE

# position command and feedback
net joint-0-pos-cmd <= joint.0.motor-pos-cmd
net joint-0-pos-cmd => pid.x.command

net joint-0-pos-fb <= hm2_[MESA](BOARD).0.encoder.00.position
net joint-0-pos-fb => joint.0.motor-pos-fb
net joint-0-pos-fb => pid.x.feedback

# PID Output
net joint.0.output <= pid.x.output
net joint.0.output => hm2_[MESA](BOARD).0.pwmgen.00.value

# Encoder Setup
setp hm2_[MESA](BOARD).0.encoder.00.scale  [JOINT_0](ENCODER_SCALE)
setp hm2_[MESA](BOARD).0.encoder.00.counter-mode 0
setp hm2_[MESA](BOARD).0.encoder.00.filter 1
setp hm2_[MESA](BOARD).0.encoder.00.index-invert 0
setp hm2_[MESA](BOARD).0.encoder.00.index-mask 0
setp hm2_[MESA](BOARD).0.encoder.00.index-mask-invert 0

# Standard I/O Block - EStop, Etc
# create a signal for the estop loopback
net estop-loopback iocontrol.0.emc-enable-in <= iocontrol.0.user-enable-out

Thanks!
  • Pahegi
  • Pahegi
17 Nov 2024 23:09
Replied by Pahegi on topic IMA quadroform C80/480

IMA quadroform C80/480

Category: Milling Machines

Hi there!
I'm also running an IMA quadroform c80/280! We are still using the NUM1060 controller, but we are still adding new features. We have already created an open source Estlcam 12 post processor to create IMAWOP FMC files.
git.makerspace-darmstadt.de/ima-baz/ima-bima-cad-converter
We have integrated our machine into the network to read the src files via NetBeui, we have understood and edited some of the internal macros and we have documented many steps from beginner tutorials to advanced calibration of the machine.
If you're interested in further exchanges, just write me an e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. .
I am very interested in meeting other owners of the same machine to discuss some specific problems and share some documentation!
Regards
Paul
  • tommylight
  • tommylight's Avatar
17 Nov 2024 22:59
Replied by tommylight on topic PC for Mesa 5i25T

PC for Mesa 5i25T

Category: Driver Boards

Ahoj pane :)
Had this issue once a few years back, try another slot.
If that does not work, remove the card, start the PC, enter the BIOS, find something like "resources" or " IRQ" or ... i forgot, but basically the part that sets the IRQ for everything is usually set to auto, so set to manually, save, power off, insert the card, it should boot OK but in some cases might have sluggish response on the desktop, and if that happens, reboot, enter BIOS, go again there and assign manually an IRQ for the Mesa, whatever just not the same one with the graphic card.
  • PCW
  • PCW's Avatar
17 Nov 2024 22:45
Replied by PCW on topic PC for Mesa 5i25T

PC for Mesa 5i25T

Category: Driver Boards

Sometimes updating the PC BIOS can help the issue.
Card testing is done on a H97 or D525 motherboard and I
don't think we have any motherboards that don't work
but I can get a HP 8200 SFF to see if there is a workaround

 
  • tommylight
  • tommylight's Avatar
17 Nov 2024 22:43
Replied by tommylight on topic Strange motion offsets in one direction on one axis

Strange motion offsets in one direction on one axis

Category: General LinuxCNC Questions

2. from what ? Aliens? :)
3. damn, that is a big machine, i thought it was some small hobby thing.
Does it use ballscrews?
If yes, try machining the same part with the same gcode but in another place on the table. Might be a broken ball.
Or might be a broken ball in linear rails, so decoupling the motor and spinning the screw by hand slowly might find a bump.
  • lukin1156
  • lukin1156
17 Nov 2024 22:38
PC for Mesa 5i25T was created by lukin1156

PC for Mesa 5i25T

Category: Driver Boards

Hello everyone!
I have a problem with installing the Mesa 5i25T card. I have an HP Compaq dc7900 computer. I installed Linux CNC from the official website on my computer, it was without any problems, it works. However, after inserting the card into the PCI slot, the computer will not start, it remains stuck in the bios. After removing the card, the computer works again without any problems. I also tried an HP Compaq 8200, but the same problem. I also tried putting the card in my large computer for drawing, I used a hard drive with the system from previous computers, and the card works. However, when performing Mesaflash, it writes an error: Unauthorized memory access (SIGSEGV). I assume that this is caused by the fact that I installed the system on the hard drive on another computer. The jumpers on the card are set to default. Do you have a tested PC setup on which this card works? Thanks for the advice and greetings from the Czech Republic!
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