Search Results (Searched for: stepper spindle)
05 Sep 2023 16:47
Replied by ihavenofish on topic Mini wannabe datron build
Mini wannabe datron build
Category: CNC Machines
05 Sep 2023 01:34 - 05 Sep 2023 01:34
Replied by GeramyL on topic Remora - ethernet NVEM cnc board
Remora - ethernet NVEM cnc board
Category: Computers and OS's
04 Sep 2023 15:16
Replied by Donno on topic Mesa modbus and pktUart
Mesa modbus and pktUart
Category: Other User Interfaces
Yes I have Pos - 620ohm - 120 ohm - 620 ohm -Neg
If i wire it any other way i get fault or if i remove 120ohm then i get a fault so i am pretty sure it is connecting. What are the default data and stop bit ?
Test.modHAL File
This is what i am expecting on address 0 to 8
If i wire it any other way i get fault or if i remove 120ohm then i get a fault so i am pretty sure it is connecting. What are the default data and stop bit ?
Test.mod
// Test Driver
#define MAX_MSG_LEN 16 // may be increased if necessary to max 251
#define DEBUG 3
static const hm2_modbus_chan_descriptor_t channels[] = {
/* {TYPE, FUNC, ADDR, COUNT, pin_name} */
{HAL_U32, 3, 0x0000, 1, "test0"},
{HAL_U32, 3, 0x0001, 1, "test1"},
{HAL_U32, 3, 0x0002, 1, "test2"},
{HAL_U32, 3, 0x0003, 1, "test3"},
{HAL_U32, 3, 0x0004, 1, "test4"},
{HAL_U32, 3, 0x0005, 1, "test5"},
{HAL_U32, 3, 0x0006, 1, "test6"},
{HAL_U32, 3, 0x0007, 1, "test7"},
{HAL_U32, 3, 0x0008, 1, "test8"},
};# Generated by PNCconf at Mon Aug 28 20:19:10 2023
# Using LinuxCNC version: Master (2.9)
# If you make changes to this file, they will be
# overwritten when you run PNCconf again
loadrt [KINS]KINEMATICS
loadrt [EMCMOT]EMCMOT servo_period_nsec=[EMCMOT]SERVO_PERIOD num_joints=[KINS]JOINTS
loadrt hostmot2
loadrt hm2_eth board_ip="192.168.1.121" config="num_encoders=1 num_pwmgens=0 num_stepgens=2"
loadrt test ports=hm2_7i92.0.pktuart.0
setp hm2_7i92.0.watchdog.timeout_ns 5000000
loadrt pid names=pid.x,pid.z,pid.s
loadrt abs names=abs.spindle
loadrt lowpass names=lowpass.spindle
loadrt scale names=scale.spindle
loadrt near
addf hm2_7i92.0.read servo-thread
addf motion-command-handler servo-thread
addf motion-controller servo-thread
addf pid.x.do-pid-calcs servo-thread
addf pid.z.do-pid-calcs servo-thread
addf pid.s.do-pid-calcs servo-thread
addf scale.spindle servo-thread
addf abs.spindle servo-thread
addf lowpass.spindle servo-thread
addf near.0 servo-thread
addf hm2_7i92.0.write servo-thread
addf test.00 servo-thread
setp hm2_7i92.0.dpll.01.timer-us -50
setp hm2_7i92.0.stepgen.timer-number 1
setp test.00.address 1
setp test.00.baudrate 19200
setp test.00.parity 2
setp test.00.update-hz 0.1
# external output signals
# --- DOUT-00 ---
setp hm2_7i92.0.gpio.000.is_output true
net dout-00 => hm2_7i92.0.gpio.000.out
# --- SPINDLE-ENABLE ---
setp hm2_7i92.0.gpio.005.is_output true
net spindle-enable => hm2_7i92.0.gpio.005.out
# --- SPINDLE-CW ---
setp hm2_7i92.0.gpio.006.is_output true
net spindle-cw => hm2_7i92.0.gpio.006.out
# --- SPINDLE-CCW ---
setp hm2_7i92.0.gpio.007.is_output true
net spindle-ccw => hm2_7i92.0.gpio.007.out
# --- COOLANT-MIST ---
setp hm2_7i92.0.gpio.008.is_output true
net coolant-mist => hm2_7i92.0.gpio.008.out
# --- DOUT-01 ---
setp hm2_7i92.0.gpio.013.is_output true
net dout-01 => hm2_7i92.0.gpio.013.out
# --- DOUT-02 ---
setp hm2_7i92.0.gpio.015.is_output true
net dout-02 => hm2_7i92.0.gpio.015.out
# --- DOUT-03 ---
setp hm2_7i92.0.gpio.016.is_output true
net dout-03 => hm2_7i92.0.gpio.016.out
# --- ESTOP-OUT ---
setp hm2_7i92.0.gpio.030.is_output true
net estop-out => hm2_7i92.0.gpio.030.out
# --- MACHINE-IS-ENABLED ---
setp hm2_7i92.0.gpio.032.is_output true
net machine-is-enabled => hm2_7i92.0.gpio.032.out
# --- SPINDLE-ENABLE ---
setp hm2_7i92.0.gpio.033.is_output true
net spindle-enable => hm2_7i92.0.gpio.033.out
# external input signals
# --- HOME-X ---
net home-x <= hm2_7i92.0.gpio.012.in
# --- HOME-Z ---
net home-z <= hm2_7i92.0.gpio.014.in
# --- DIN-00 ---
net din-00 <= hm2_7i92.0.gpio.019.in
# --- DIN-01 ---
net din-01 <= hm2_7i92.0.gpio.020.in
# --- DIN-02 ---
net din-02 <= hm2_7i92.0.gpio.021.in
# --- DIN-03 ---
net din-03 <= hm2_7i92.0.gpio.022.in
# --- ESTOP-EXT ---
net estop-ext <= hm2_7i92.0.gpio.023.in
# --- PROBE-IN ---
net probe-in <= hm2_7i92.0.gpio.024.in
#*******************
# AXIS X JOINT 0
#*******************
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
# This setting is to limit bogus stepgen
# velocity corrections caused by position
# feedback sample time jitter.
setp pid.x.maxerror 0.012700
net x-index-enable => pid.x.index-enable
net x-enable => pid.x.enable
net x-pos-cmd => pid.x.command
net x-pos-fb => pid.x.feedback
net x-output <= pid.x.output
# Step Gen signals/setup
setp hm2_7i92.0.stepgen.00.dirsetup [JOINT_0]DIRSETUP
setp hm2_7i92.0.stepgen.00.dirhold [JOINT_0]DIRHOLD
setp hm2_7i92.0.stepgen.00.steplen [JOINT_0]STEPLEN
setp hm2_7i92.0.stepgen.00.stepspace [JOINT_0]STEPSPACE
setp hm2_7i92.0.stepgen.00.position-scale [JOINT_0]STEP_SCALE
setp hm2_7i92.0.stepgen.00.step_type 0
setp hm2_7i92.0.stepgen.00.control-type 1
setp hm2_7i92.0.stepgen.00.maxaccel [JOINT_0]STEPGEN_MAXACCEL
setp hm2_7i92.0.stepgen.00.maxvel [JOINT_0]STEPGEN_MAXVEL
# ---closedloop stepper signals---
net x-pos-cmd <= joint.0.motor-pos-cmd
net x-vel-cmd <= joint.0.vel-cmd
net x-output => hm2_7i92.0.stepgen.00.velocity-cmd
net x-pos-fb <= hm2_7i92.0.stepgen.00.position-fb
net x-pos-fb => joint.0.motor-pos-fb
net x-enable <= joint.0.amp-enable-out
net x-enable => hm2_7i92.0.stepgen.00.enable
# ---setup home / limit switch signals---
net home-x => joint.0.home-sw-in
net x-neg-limit => joint.0.neg-lim-sw-in
net x-pos-limit => joint.0.pos-lim-sw-in
#*******************
# AXIS Z JOINT 1
#*******************
setp pid.z.Pgain [JOINT_1]P
setp pid.z.Igain [JOINT_1]I
setp pid.z.Dgain [JOINT_1]D
setp pid.z.bias [JOINT_1]BIAS
setp pid.z.FF0 [JOINT_1]FF0
setp pid.z.FF1 [JOINT_1]FF1
setp pid.z.FF2 [JOINT_1]FF2
setp pid.z.deadband [JOINT_1]DEADBAND
setp pid.z.maxoutput [JOINT_1]MAX_OUTPUT
setp pid.z.error-previous-target true
# This setting is to limit bogus stepgen
# velocity corrections caused by position
# feedback sample time jitter.
setp pid.z.maxerror 0.012700
net z-index-enable => pid.z.index-enable
net z-enable => pid.z.enable
net z-pos-cmd => pid.z.command
net z-pos-fb => pid.z.feedback
net z-output <= pid.z.output
# Step Gen signals/setup
setp hm2_7i92.0.stepgen.01.dirsetup [JOINT_1]DIRSETUP
setp hm2_7i92.0.stepgen.01.dirhold [JOINT_1]DIRHOLD
setp hm2_7i92.0.stepgen.01.steplen [JOINT_1]STEPLEN
setp hm2_7i92.0.stepgen.01.stepspace [JOINT_1]STEPSPACE
setp hm2_7i92.0.stepgen.01.position-scale [JOINT_1]STEP_SCALE
setp hm2_7i92.0.stepgen.01.step_type 0
setp hm2_7i92.0.stepgen.01.control-type 1
setp hm2_7i92.0.stepgen.01.maxaccel [JOINT_1]STEPGEN_MAXACCEL
setp hm2_7i92.0.stepgen.01.maxvel [JOINT_1]STEPGEN_MAXVEL
# ---closedloop stepper signals---
net z-pos-cmd <= joint.1.motor-pos-cmd
net z-vel-cmd <= joint.1.vel-cmd
net z-output => hm2_7i92.0.stepgen.01.velocity-cmd
net z-pos-fb <= hm2_7i92.0.stepgen.01.position-fb
net z-pos-fb => joint.1.motor-pos-fb
net z-enable <= joint.1.amp-enable-out
net z-enable => hm2_7i92.0.stepgen.01.enable
# ---setup home / limit switch signals---
net home-z => joint.1.home-sw-in
net z-neg-limit => joint.1.neg-lim-sw-in
net z-pos-limit => joint.1.pos-lim-sw-in
#*******************
# SPINDLE
#*******************
setp pid.s.Pgain [SPINDLE_0]P
setp pid.s.Igain [SPINDLE_0]I
setp pid.s.Dgain [SPINDLE_0]D
setp pid.s.bias [SPINDLE_0]BIAS
setp pid.s.FF0 [SPINDLE_0]FF0
setp pid.s.FF1 [SPINDLE_0]FF1
setp pid.s.FF2 [SPINDLE_0]FF2
setp pid.s.deadband [SPINDLE_0]DEADBAND
setp pid.s.maxoutput [SPINDLE_0]MAX_OUTPUT
setp pid.s.error-previous-target true
net spindle-index-enable => pid.s.index-enable
net spindle-enable => pid.s.enable
net spindle-vel-cmd-rpm-abs => pid.s.command
net spindle-vel-fb-rpm-abs => pid.s.feedback
net spindle-output <= pid.s.output
# ---Encoder feedback signals/setup---
setp hm2_7i92.0.encoder.00.counter-mode 0
setp hm2_7i92.0.encoder.00.filter 1
setp hm2_7i92.0.encoder.00.index-invert 0
setp hm2_7i92.0.encoder.00.index-mask 0
setp hm2_7i92.0.encoder.00.index-mask-invert 0
setp hm2_7i92.0.encoder.00.scale [SPINDLE_0]ENCODER_SCALE
net spindle-revs <= hm2_7i92.0.encoder.00.position
net spindle-vel-fb-rps <= hm2_7i92.0.encoder.00.velocity
net spindle-vel-fb-rpm <= hm2_7i92.0.encoder.00.velocity-rpm
net spindle-index-enable <=> hm2_7i92.0.encoder.00.index-enable
# ---setup spindle control signals---
net spindle-vel-cmd-rps <= spindle.0.speed-out-rps
net spindle-vel-cmd-rps-abs <= spindle.0.speed-out-rps-abs
net spindle-vel-cmd-rpm <= spindle.0.speed-out
net spindle-vel-cmd-rpm-abs <= spindle.0.speed-out-abs
net spindle-enable <= spindle.0.on
net spindle-cw <= spindle.0.forward
net spindle-ccw <= spindle.0.reverse
net spindle-brake <= spindle.0.brake
net spindle-revs => spindle.0.revs
net spindle-at-speed => spindle.0.at-speed
net spindle-vel-fb-rps => spindle.0.speed-in
net spindle-index-enable <=> spindle.0.index-enable
# ---Setup spindle at speed signals---
net spindle-vel-cmd-rps => near.0.in1
net spindle-vel-fb-rps => near.0.in2
net spindle-at-speed <= near.0.out
setp near.0.scale 1.000000
setp near.0.difference 0.166667
# Use ACTUAL spindle velocity from spindle encoder
# spindle-velocity bounces around so we filter it with lowpass
# spindle-velocity is signed so we use absolute component to remove sign
# ACTUAL velocity is in RPS not RPM so we scale it.
setp scale.spindle.gain 60
setp lowpass.spindle.gain 1.000000
net spindle-vel-fb-rps => scale.spindle.in
net spindle-fb-rpm scale.spindle.out => abs.spindle.in
net spindle-fb-rpm-abs abs.spindle.out => lowpass.spindle.in
net spindle-fb-rpm-abs-filtered lowpass.spindle.out
#******************************
# connect miscellaneous signals
#******************************
# ---HALUI signals---
net axis-select-x halui.axis.x.select
net jog-x-pos halui.axis.x.plus
net jog-x-neg halui.axis.x.minus
net jog-x-analog halui.axis.x.analog
net x-is-homed halui.joint.0.is-homed
net axis-select-z halui.axis.z.select
net jog-z-pos halui.axis.z.plus
net jog-z-neg halui.axis.z.minus
net jog-z-analog halui.axis.z.analog
net z-is-homed halui.joint.1.is-homed
net jog-selected-pos halui.axis.selected.plus
net jog-selected-neg halui.axis.selected.minus
net spindle-manual-cw halui.spindle.0.forward
net spindle-manual-ccw halui.spindle.0.reverse
net spindle-manual-stop halui.spindle.0.stop
net machine-is-on halui.machine.is-on
net jog-speed halui.axis.jog-speed
net MDI-mode halui.mode.is-mdi
# ---coolant signals---
net coolant-mist <= iocontrol.0.coolant-mist
net coolant-flood <= iocontrol.0.coolant-flood
# ---probe signal---
net probe-in => motion.probe-input
# ---motion control signals---
net in-position <= motion.in-position
net machine-is-enabled <= motion.motion-enabled
# ---digital in / out signals---
net dout-00 <= motion.digital-out-00
net dout-01 <= motion.digital-out-01
net dout-02 <= motion.digital-out-02
net dout-03 <= motion.digital-out-03
net din-00 => motion.digital-in-00
net din-01 => motion.digital-in-01
net din-02 => motion.digital-in-02
net din-03 => motion.digital-in-03
# ---estop signals---
net estop-out <= iocontrol.0.user-enable-out
net estop-ext => iocontrol.0.emc-enable-in
# ---manual tool change signals---
net tool-change-request <= iocontrol.0.tool-change
net tool-change-confirmed => iocontrol.0.tool-changed
net tool-number <= iocontrol.0.tool-prep-number
# ---Use external manual tool change dialog---
loadusr -W hal_manualtoolchange
net tool-change-request => hal_manualtoolchange.change
net tool-change-confirmed <= hal_manualtoolchange.changed
net tool-number => hal_manualtoolchange.number
# ---ignore tool prepare requests---
net tool-prepare-loopback iocontrol.0.tool-prepare => iocontrol.0.tool-prepared
This is what i am expecting on address 0 to 8
[color=#ff5454]A5 Servo Driver | 16:59:43 [/color][color=#000000] [/color]
[color=#e74c3c]0 : 14130 | 1 : 0 | 2 : 0 | 3 : 0 | 4 : 0 | 5 : 0 | 6 : 0 | 7 : 0 | 8 : 14100 |[/color][color=#5454ff] [/color]
04 Sep 2023 03:38
03 Sep 2023 01:12
Replied by tommylight on topic Only one Y Stepper is working
Only one Y Stepper is working
Category: PnCConf Wizard
02 Sep 2023 17:53
Replied by Donno on topic Mesa modbus and pktUart
Mesa modbus and pktUart
Category: Other User Interfaces
01 Sep 2023 20:20 - 04 Sep 2023 04:11
Reverse Engineering a 5-axis benchtop CNC was created by drdoc
Reverse Engineering a 5-axis benchtop CNC
Category: CNC Machines
Long story, but I'm retrofitting a 7i96 (and probably a ChinaBoB) to a VHF CAM5 S2 dental mill. TL;DR I don't have the license dongle it sold with and don't have the money to pay for the proprietary control software.
The motion part is pretty straightforward. Open loop NEMA17 steppers with ball screws, I don't expect any problem controlling the motion. I might at some point build a bigger frame but for now, I'm looking at a working envelope of about 4" x 3.5" x 3" plus I think 90 degrees on A and 360 on B.
I'm going to either forego the tool changer or re-work it as a 6 or 8 tool instead of 16. Tools with that depth-gauge circlip are way out of my budget, and I think that's integral to operating it as a 16-tool magazine. The spindle, however. It's an VHF-branded SFS 300P. Neither SFS nor VHF publish any pinout, voltage requirement, control frequency range or any useful build info. The motor control daughterboard gives me the pinout for the motor, but I don't have the electronics fu to get any farther than that.
So, my questions are:1) Does anyone here have knowledge or experience with this particular machine? A service manual or any maintenance information would be miraculous.2) Same question for the spindle assembly. I do have the pressure & flow specs for the air seal and chuck controls, but working out the input voltage and speed control are out of my depth.3) Assuming the absence of model-specific details, how should I go about reverse-engineering the motor? I have multimeters and oscilloscope.
Thanks!
Doc
The motion part is pretty straightforward. Open loop NEMA17 steppers with ball screws, I don't expect any problem controlling the motion. I might at some point build a bigger frame but for now, I'm looking at a working envelope of about 4" x 3.5" x 3" plus I think 90 degrees on A and 360 on B.
I'm going to either forego the tool changer or re-work it as a 6 or 8 tool instead of 16. Tools with that depth-gauge circlip are way out of my budget, and I think that's integral to operating it as a 16-tool magazine. The spindle, however. It's an VHF-branded SFS 300P. Neither SFS nor VHF publish any pinout, voltage requirement, control frequency range or any useful build info. The motor control daughterboard gives me the pinout for the motor, but I don't have the electronics fu to get any farther than that.
So, my questions are:1) Does anyone here have knowledge or experience with this particular machine? A service manual or any maintenance information would be miraculous.2) Same question for the spindle assembly. I do have the pressure & flow specs for the air seal and chuck controls, but working out the input voltage and speed control are out of my depth.3) Assuming the absence of model-specific details, how should I go about reverse-engineering the motor? I have multimeters and oscilloscope.
Thanks!
Doc
01 Sep 2023 00:28
Replied by spumco on topic Mesa board with support for DROmagnetic encoders
Mesa board with support for DROmagnetic encoders
Category: Driver Boards
SLOW DOWN!
First - there's a 7I85 and a 7i85S. The difference is:
The 7i96S + 7i85S is a great combo... it's what I'm using in my current lathe project. But I had to add more IO (lots) and now I'm out of serial expansion ports. No regrets, but I'm not expanding any further without swapping out a board.
Second - there are numerous threads in this forum about closing the loop back to LCNC with steppers. The problem is searching the forum is a bit difficult... but get used to it. Read as much as you can. Maybe search for "loop" and limit it to search titles only.
One of the users here (Hakan) posted a number of nice videos about closing the loop with steppers (and later servos) on you tube. Search YT for some good overviews.
More importantly... dealing with closed loop is WAY down the road you're about to travel. The LCNC learning curve is steep, especially if you aren't a 'computer person' (like me). There are multiple concepts you'll need to become familiar with to get an open loop system sorted out. Once it's happy, then you can close the loop and sort out the tuning.
Read the LCNC online manual.
Read about HAL and INI files.
Read about user interfaces (GUI's)
Search YT for "Feral Engineer" and watch EVERY linuxcnc video he published.
Come back when your brain hurts.
First - there's a 7I85 and a 7i85S. The difference is:
- 7i85
- 4 encoder inputs
- 5 serial expansion ports
- 7i85S
- 4 step & direction outputs (more axes)
- 4 encoder inputs
- 1 serial expansion port
- Does the 7i96S and one of the two 7i85's have all the IO you need?
- What's your spindle?
- How many IO points do you have (or want)?
- What sensors do you have? PNP? NPN? Switches? What voltage?
- Do you want a tool changer?
- Do you plan on a couple - or a bunch - of physical control buttons for the operator?
- How much room do you have in your electrical cabinet?
The 7i96S + 7i85S is a great combo... it's what I'm using in my current lathe project. But I had to add more IO (lots) and now I'm out of serial expansion ports. No regrets, but I'm not expanding any further without swapping out a board.
Second - there are numerous threads in this forum about closing the loop back to LCNC with steppers. The problem is searching the forum is a bit difficult... but get used to it. Read as much as you can. Maybe search for "loop" and limit it to search titles only.
One of the users here (Hakan) posted a number of nice videos about closing the loop with steppers (and later servos) on you tube. Search YT for some good overviews.
More importantly... dealing with closed loop is WAY down the road you're about to travel. The LCNC learning curve is steep, especially if you aren't a 'computer person' (like me). There are multiple concepts you'll need to become familiar with to get an open loop system sorted out. Once it's happy, then you can close the loop and sort out the tuning.
Read the LCNC online manual.
Read about HAL and INI files.
Read about user interfaces (GUI's)
Search YT for "Feral Engineer" and watch EVERY linuxcnc video he published.
Come back when your brain hurts.
30 Aug 2023 10:02
7i96S and Emergency / E-Stop was created by kevin_allein
7i96S and Emergency / E-Stop
Category: Driver Boards
29 Aug 2023 17:08 - 29 Aug 2023 18:02
Fast pulse for stepper with EL2202 was created by JoBoCNC
Fast pulse for stepper with EL2202
Category: EtherCAT
27 Aug 2023 21:05
5i25 and 7i76 issue was created by HenrikWJ
5i25 and 7i76 issue
Category: General LinuxCNC Questions
23 Aug 2023 12:39
20 Aug 2023 22:00 - 20 Aug 2023 22:03
Replied by Jensner on topic Stepper-Encoder an einem Stepper via Parallelport nachrüsten
Stepper-Encoder an einem Stepper via Parallelport nachrüsten
Category: Deutsch
Heute habe ich meine vakuum-platte fertiggestellt.
400 x fräsen + 400 x 1mm Phase um die Blöcke (incl. 5mm Werkzeug-Abheben pro Block im Schnellgang) ohne einen einzigen Schrittverlust. (ohne Absaugung)
Nach fast einem Jahr des Rätselns und Ärgers bin ich schon mal extrem froh, das Problem eindeutig aufgespürt zu haben.
Den anderen Stepper habe ich ebenfalls wieder zurück getauscht. Der ursprünglich verbaute ist sehr viel leiser und hochwertiger.
Bzgl. eines Lösungsansatzes habe ich heute mal einen Minimalansatz getestet und schlich ein Erdungskabel (erstmal als Wurfleitung) an die Spindel angeschlossen und auf Masse verbunden.
Die ersten Tests mit MDF und der Absaugmaske waren schon mal vielversprechend.
Keinerlei statische Aufladung bemerkbar, keine Schrittverluste.
Wenn damit das Problem gelöst wäre, hätte dies schon Charm.
Ansonsten habe ich noch immer die Option mit leitfähigem Filament im Hinterkopf.
Mal schauen wie sich das weiter entwickelt.
Vielen Dank nochmal an alle Helfer!
Gruß Jens
+++++++++++++++++++++++++++++++++++++++++
Today I finished my vacuum plate.
400 x milling + 400 x 1mm phase around the blocks (incl. 5mm tool lift-off per block in fast mode) without a single step loss. (without suction)
After nearly one year of puzzling and annoyance I am already extremely glad to have tracked down the problem clearly.
I also exchanged the other stepper back. The originally installed is much quieter and higher quality.
Regarding a solution, I tested a minimal approach today and connected a ground cable (first as a throw line) to the spindle and connected to ground.
The first tests with MDF and the suction mask were already promising.
No static charge noticeable, no step losses.
If this solved the problem, it would be charming.
Otherwise, I still have the option with conductive filament in mind.
Let's see how this develops further.
Thanks again to all the helpers!
Greetings Jens
400 x fräsen + 400 x 1mm Phase um die Blöcke (incl. 5mm Werkzeug-Abheben pro Block im Schnellgang) ohne einen einzigen Schrittverlust. (ohne Absaugung)
Nach fast einem Jahr des Rätselns und Ärgers bin ich schon mal extrem froh, das Problem eindeutig aufgespürt zu haben.
Den anderen Stepper habe ich ebenfalls wieder zurück getauscht. Der ursprünglich verbaute ist sehr viel leiser und hochwertiger.
Bzgl. eines Lösungsansatzes habe ich heute mal einen Minimalansatz getestet und schlich ein Erdungskabel (erstmal als Wurfleitung) an die Spindel angeschlossen und auf Masse verbunden.
Die ersten Tests mit MDF und der Absaugmaske waren schon mal vielversprechend.
Keinerlei statische Aufladung bemerkbar, keine Schrittverluste.
Wenn damit das Problem gelöst wäre, hätte dies schon Charm.
Ansonsten habe ich noch immer die Option mit leitfähigem Filament im Hinterkopf.
Mal schauen wie sich das weiter entwickelt.
Vielen Dank nochmal an alle Helfer!
Gruß Jens
+++++++++++++++++++++++++++++++++++++++++
Today I finished my vacuum plate.
400 x milling + 400 x 1mm phase around the blocks (incl. 5mm tool lift-off per block in fast mode) without a single step loss. (without suction)
After nearly one year of puzzling and annoyance I am already extremely glad to have tracked down the problem clearly.
I also exchanged the other stepper back. The originally installed is much quieter and higher quality.
Regarding a solution, I tested a minimal approach today and connected a ground cable (first as a throw line) to the spindle and connected to ground.
The first tests with MDF and the suction mask were already promising.
No static charge noticeable, no step losses.
If this solved the problem, it would be charming.
Otherwise, I still have the option with conductive filament in mind.
Let's see how this develops further.
Thanks again to all the helpers!
Greetings Jens
20 Aug 2023 21:09
scaling problem on CNC Router was created by geertd
scaling problem on CNC Router
Category: Advanced Configuration
19 Aug 2023 05:15 - 19 Aug 2023 05:29
Replied by Jensner on topic Stepper-Encoder an einem Stepper via Parallelport nachrüsten
Stepper-Encoder an einem Stepper via Parallelport nachrüsten
Category: Deutsch
Das Problem ist in meinem Falle kein elektrisches Bauteil im Absaugstrang, sondern vielmehr die extrem hohe, elektrostatische Aufladung des Absaugschlauchs und des aus PLA selbst gedruckten Absaugkopfes, welcher auf die Spindel aufgesteckt wird.
Durch die Verwirbelungen und relativ hohen Geschwindigkeiten lädt sich schon der Kopf an der Spindel elektrostatisch auf. Des weiteren war es wohl nicht sehr schlau von mit den Absaugschlauch durch ein HT-Rohr zu verlegen. Dies verstärkt aus meiner Sicht die elektrostatische Aufladung nochmals.
Das heißt, ich muss mir leider eine andere Absauglösung einfallen lassen. Sehr schade, denn dieser Kopf hat sehr gut funktioniert, aber wenn damit das Z-drifting behoben wird, ist es das auf jeden Fall wert.
Alternativ wäre auch die Frage ob das Problem mit einem eigenen Erdungskabel für den Absaugkopf in der Schleppkette gelöst wäre oder dadurch noch verschlimmert würde.
Vielen Dank
+++++++++++++++++++++++
In my case, the problem is not an electrical component in the suction line, but rather the extremely high electrostatic charge of the suction hose and the suction head, which is printed from PLA and attached to the spindle.
Due to the turbulence and relatively high speeds, even the head on the spindle becomes electrostatically charged. Furthermore, it was probably not very clever of me to lay the suction hose through a HT pipe. In my opinion, this increases the electrostatic charge even more.
This means that I unfortunately have to come up with another suction solution. Very unfortunate, because this r head worked very well, but if it fixes the Z-drifting, it's definitely worth it.
Alternatively, the question would also be whether the problem would be solved with a dedicated ground cable for the suction head in the drag chain, or would that make it worse.
Thanks a lot
Durch die Verwirbelungen und relativ hohen Geschwindigkeiten lädt sich schon der Kopf an der Spindel elektrostatisch auf. Des weiteren war es wohl nicht sehr schlau von mit den Absaugschlauch durch ein HT-Rohr zu verlegen. Dies verstärkt aus meiner Sicht die elektrostatische Aufladung nochmals.
Das heißt, ich muss mir leider eine andere Absauglösung einfallen lassen. Sehr schade, denn dieser Kopf hat sehr gut funktioniert, aber wenn damit das Z-drifting behoben wird, ist es das auf jeden Fall wert.
Alternativ wäre auch die Frage ob das Problem mit einem eigenen Erdungskabel für den Absaugkopf in der Schleppkette gelöst wäre oder dadurch noch verschlimmert würde.
Vielen Dank
+++++++++++++++++++++++
In my case, the problem is not an electrical component in the suction line, but rather the extremely high electrostatic charge of the suction hose and the suction head, which is printed from PLA and attached to the spindle.
Due to the turbulence and relatively high speeds, even the head on the spindle becomes electrostatically charged. Furthermore, it was probably not very clever of me to lay the suction hose through a HT pipe. In my opinion, this increases the electrostatic charge even more.
This means that I unfortunately have to come up with another suction solution. Very unfortunate, because this r head worked very well, but if it fixes the Z-drifting, it's definitely worth it.
Alternatively, the question would also be whether the problem would be solved with a dedicated ground cable for the suction head in the drag chain, or would that make it worse.
Thanks a lot
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