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  • PasstScho
  • PasstScho
06 May 2025 21:50
Replied by PasstScho on topic mesa 7i73 4x8 keypad problems on KEY8 input

mesa 7i73 4x8 keypad problems on KEY8 input

Category: Driver Boards

No problem - thank you!
  • unknown
  • unknown
06 May 2025 21:43
Replied by unknown on topic free CADCAM

free CADCAM

Category: CAD CAM

Love FreeCAD, apart from one little annoying issue.
Used the CAM for making the brackets and nubbins for the Franken Myford CNC conversion. It's my Goto for anything I need to 3D print, even used to help my son with some prototyping ideas when he was doing the additive manufacturing module at Uni.
  • unknown
  • unknown
06 May 2025 21:35
Replied by unknown on topic ISO: Mesa to router interface board

ISO: Mesa to router interface board

Category: Driver Boards

AliExpress has carrier boards for the little step stick drivers, less than a dollar a pop. You would just need to make some cables with female DuPont connectors at one end and bootlace ferrules at the other, far better than bare wires. That's the setup I use for testing things rather than messing with the mill in the garage.
  • tommylight
  • tommylight's Avatar
06 May 2025 21:25
Replied by tommylight on topic G-code file loading at G53 instead of G54

G-code file loading at G53 instead of G54

Category: Qtvcp

See the light blue star on your screenshot?
That is active offsets.
In Axis GUI you can choose to show offsets, i do not use Probe Basic so i do not know how to show them.
  • tommylight
  • tommylight's Avatar
06 May 2025 21:22
Replied by tommylight on topic ISO: Mesa to router interface board

ISO: Mesa to router interface board

Category: Driver Boards

Standard would be the normal TB6600 and above up to huge servo drives, self contained in a box for each axis.
The 3D printer ones or step sticks are ... well for 3D printers, useless without their respective boards, very prone to interference, and some will just fail by touching them at certain conditions. Yes, TMC are pretty good, but using stealth chop or another such feature (forgot the name) is clearly stated to cause small positioning errors, so for anything vaguely precise should be avoided or used without those features active.
As luck would have it, there are step sticks with TB67S109 chips, i have some, found out i never need to push 3.5A on a 3D printer! :)
  • CallumRD1
  • CallumRD1
06 May 2025 21:18 - 06 May 2025 21:19
Replied by CallumRD1 on topic G-code file loading at G53 instead of G54

G-code file loading at G53 instead of G54

Category: Qtvcp

I don't follow. I have no offsets in use.

I don't have homing switches on this machine, it homes off absolute encoders from the servos. But I don't see why that matters here? The machine is homed and G53 is properly referenced to all the axis limits. The work envelope displayed is correct, as is the location of the tool within the work envelope. G54 is my work offset and is in an arbitrary position in the center of my work envelope (middle of the air here for testing code). The code I loaded is being mapped onto the G53 origin rather than the G54 origin that the code is calling and the machine has active.

Code should always respect the correct origin called, G54 in this case.
  • tommylight
  • tommylight's Avatar
06 May 2025 21:05
Replied by tommylight on topic G-code file loading at G53 instead of G54

G-code file loading at G53 instead of G54

Category: Qtvcp

Does the machine have home switches?
If yes, home the machine then touch off each axis/joint in G54.
There are active offsets in use, remove those first, see if that puts things where they should be.
  • tommylight
  • tommylight's Avatar
06 May 2025 21:02
Replied by tommylight on topic Need help with Linux 2.5 on a CNC lathe

Need help with Linux 2.5 on a CNC lathe

Category: General LinuxCNC Questions

Move the Z axis by hand towards the spindle a bit, then power on and try homing.
If that does not work, use a DVM to check the wiring from the Z axis switch to parallel port 0 (the built in parallel port in the motherboard, not the add on one)
  • pgf
  • pgf
06 May 2025 21:01
Replied by pgf on topic ISO: Mesa to router interface board

ISO: Mesa to router interface board

Category: Driver Boards

No, what I have is a 7i96. Somehow I found wiring directly to it very awkward with my DIY mill. It's possible that that was because of the poorly designed stepper driver board I was using -- it's connections were hard to manage.

I did find an Arduino shield that does what I want and has screw terminals for all connections. And I think I can probably use it almost as is, simply by not plugging it on to an Arduino. Still thinking about that.

When you say "standard" stepper drivers, can you show me an example, including how they're typically mounted? It's true my head is probably stuck in the CNC toy world. :-)

paul
  • Groovecooper1
  • Groovecooper1's Avatar
06 May 2025 20:58
Replied by Groovecooper1 on topic Need help with Linux 2.5 on a CNC lathe

Need help with Linux 2.5 on a CNC lathe

Category: General LinuxCNC Questions

This is getting to be a 911 issue as I’ve got to get this machine running. I can’t move forward without it. I need to Groove the baseball bat to get them to the MLB, we’re gonna be grooving dolls down to drumsticks, etc. Absolutely appreciate your assistance. How do you find a CNC tech in the Chicagoland area that knows Linux 2.5? So far nobody.
  • Spyderbreath
  • Spyderbreath's Avatar
06 May 2025 20:57
Replied by Spyderbreath on topic Remora - ethernet NVEM / EC300 / EC500 cnc board

Remora - ethernet NVEM / EC300 / EC500 cnc board

Category: Computers and Hardware

Thank you cake! That actually cleared things up more than a little. I managed to figured out what that .not was for on the end so maybe that's a plus.

Still have the Emergency Stop button on Axis freezing after a trigger and neither mouse or [F1] will reset it. I am thinking that I had read some posts back that someone else was experiencing the same thing and was thinking it was Axis related?

Not letting that stop me from moving forward and next comes the probe. If I were to take a SWAG at it, how close does this come?
net touchprobe          remora.input.05          =>   motion.probe-input

Am I on the right track?
  • tommylight
  • tommylight's Avatar
06 May 2025 20:55
Replied by tommylight on topic Bridgeport VMC760 retrofit

Bridgeport VMC760 retrofit

Category: Milling Machines

50 hz is inferior to 60Hz b/c transformers, motors, etc. need to be bigger and more expensive.

Was this from chatGPT?
The only valid difference is the induction motors spin faster at 60Hz, everything else is pretty much irrelevant.
  • PCW
  • PCW's Avatar
06 May 2025 20:44
Replied by PCW on topic soft limit error after x homing, does not home y

soft limit error after x homing, does not home y

Category: General LinuxCNC Questions

#*** AXIS_X *******************************
[AXIS_X]
MAX_VELOCITY = 0.5
MAX_ACCELERATION = 0.2
MIN_LIMIT = 4.8
MAX_LIMIT = -4.8

[JOINT_0]
TYPE = LINEAR
HOME = 0.0
MIN_LIMIT = 4.8
MAX_LIMIT = -4.8
MAX_VELOCITY = 0.5
MAX_ACCELERATION = 0.2
STEPGEN_MAXACCEL = 0.25
SCALE = 4000.0
FERROR = 0.05
MIN_FERROR = 0.01
HOME_OFFSET = -4.500000
HOME_SEARCH_VEL = 0.100000
HOME_LATCH_VEL = -0.100000
HOME_IGNORE_LIMITS = YES
HOME_SEQUENCE = 1
#******************************************
  • Micro2000
  • Micro2000
06 May 2025 20:32
Replied by Micro2000 on topic soft limit error after x homing, does not home y

soft limit error after x homing, does not home y

Category: General LinuxCNC Questions

Where would I need to go to change the scale
  • Hakan
  • Hakan
06 May 2025 19:59 - 06 May 2025 20:02
Replied by Hakan on topic General Questions about using ethercat

General Questions about using ethercat

Category: EtherCAT

That's what the cia402 component does. You have already set cia402.0.csp-mode to 1 in the hal file.
You can go into halshow and find the pin lcec.0.X.target-position and lcec.0.X.actual-position.
The difference between them is the following error and one always accepts some error but when it becomes too large lcnc stops.
You have the cia402.0.pos-scale to play with. The manual should say how many "steps" per revolution it uses, or how to found out. Calculate how many steps per axis unit (mm?) you have (thread pitch).

However I looked at your ethercat-conf.xml. You got to remove those pdos from syncmanager 0 and 1, actually remove sm0 and sm1 completely and only use those in sm2 and sm3.
Like this

<dcConf assignActivate="300" sync0Cycle="*1" sync0Shift="0"/>
<syncManager idx="2" dir="out">
<pdo idx="1600">
<pdoEntry idx="6040" subIdx="00" bitLen="16" halPin="controlword" halType="U32"/>
<pdoEntry idx="607a" subIdx="00" bitLen="32" halPin="target-position" halType="S32"/>
<pdoEntry idx="60ff" subIdx="00" bitLen="32" halPin="target-velocity" halType="S32"/>
<pdoEntry idx="6060" subIdx="00" bitLen="8" halPin="opmode" halType="S32"/>
</pdo>
</syncManager>
<syncManager idx="3" dir="in">
<pdo idx="1a00">
<pdoEntry idx="6041" subIdx="00" bitLen="16" halPin="statusword" halType="U32"/>
<pdoEntry idx="6064" subIdx="00" bitLen="32" halPin="actual-position" halType="S32"/>
<pdoEntry idx="606c" subIdx="00" bitLen="32" halPin="actual-velocity" halType="S32"/>
<pdoEntry idx="6061" subIdx="00" bitLen="8" halPin="opmode-display" halType="S32"/>
</pdo>
</syncManager>

Keep dccconf line and all other lines. If I made a type above I hope you can correct it.
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