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  • Hakan
  • Hakan
03 May 2025 22:00
Replied by Hakan on topic free CADCAM

free CADCAM

Category: CAD CAM

See if you qualify for one of the free license alternatives for Fusion 360. If you do I think it is hard to beat.
One can argue that it isn't free, at least it doesn't cost any money.
  • spincycle
  • spincycle
03 May 2025 22:00
Replied by spincycle on topic Bridgeport VMC760 retrofit

Bridgeport VMC760 retrofit

Category: Milling Machines

The induction motor is a very, very old invention.
By Nikola Tesla.


Hahaha, so true
 

  • spincycle
  • spincycle
03 May 2025 21:59
Replied by spincycle on topic Bridgeport VMC760 retrofit

Bridgeport VMC760 retrofit

Category: Milling Machines

Thanks for the input Langdons.

Good to know that a beefed up PC is a better choice than the Pi.

The thought did cross my mind to keep the motors and replace drivers. I would assume I'd need to get drivers that work with the Siemens encoders or replace the encoders with ones that match the drives.

Does anyone have any experience with this?

Thanks,

J
  • tommylight
  • tommylight's Avatar
03 May 2025 21:37

None of the axis are moving - using mesa 7i92t with 7i76u

Category: Basic Configuration

Enable signal:
This signal is used for enabling/disabling the drive.
High level +5V (NPN control signal) for enabling the drive, and low level for disabling the drive.

PNP and Differential control signals are on the contrary, namely Low level for enabling.

By default it is left UNCONNECTED (ENABLED).

Contradicting info.
Not unusual on China stuff, at all.
  • dbtayl
  • dbtayl
03 May 2025 21:35 - 03 May 2025 21:37
Replied by dbtayl on topic free CADCAM

free CADCAM

Category: CAD CAM

I use FreeCAD- the "Path" workbench got renamed to (more appropriately) "CAM" a while back- when searching for information on it, you may see references to both. It's adequate, getting better all the time (use the weekly builds!). Lots of little things that are obnoxious, but I haven't found anything better for any reasonable-to-this-hobbyist cost if you're doing more mechanical designs than organic/artsy. Being parametric on the CAD side and having adaptive toolpaths on the CAM side are huge for me. Definitely a learning curve, sometimes you have to go about things in unintuitive ways for various reasons to get what you want.

Depends heavily on what you're doing as well. Blender + BlenderCAM might be a good choice if you can manage the learning curve and are doing more organic/less "dimensioned" stuff. FreeCAD doesn't handle that so well IME.

If you're doing 2D/engraving type stuff, Inkscape or others might be better.

You might also end up using multiple for different things.
  • tommylight
  • tommylight's Avatar
03 May 2025 21:35
Replied by tommylight on topic Bridgeport VMC760 retrofit

Bridgeport VMC760 retrofit

Category: Milling Machines

The induction motor is a very, very old invention.

By Nikola Tesla.
  • cmorley
  • cmorley
03 May 2025 21:32

How to change jog speed using joystick buttons (QtDragon + HAL)?

Category: HAL

You could use a mux component to set halui.jog-speed.
Mux2 for 2 speeds from one button or
Mux4 for up to 4 speed from two buttons
  • cakeslob
  • cakeslob
03 May 2025 21:26

Remora - ethernet NVEM / EC300 / EC500 cnc board

Category: Computers and Hardware

the documents will be updated to reflect the struggles of you and the other users this last week.

to the 2 other users who posted the quick guides for flashing and setup, i would like to use those in the remora docs, i hope this is ok
  • Spyderbreath
  • Spyderbreath's Avatar
03 May 2025 21:23
Replied by Spyderbreath on topic Remora - ethernet NVEM / EC300 / EC500 cnc board

Remora - ethernet NVEM / EC300 / EC500 cnc board

Category: Computers and Hardware

OK, progress! I put the #end-stops into my .hal file and BANG, I get a limit switch error reported in axis on pins 3, 5, and 7.

THANK YOU to all that have gotten me this far!! I now know that the remora flash took on the nvem and the hardware part is working.

Just the nightmare of figuring out the rest of the .hal file to get everything else working. But as for now, forward is a good direction to be heading. :)
  • cakeslob
  • cakeslob
03 May 2025 21:23 - 03 May 2025 21:24

Remora - ethernet NVEM / EC300 / EC500 cnc board

Category: Computers and Hardware

the first part is what you add to the bottom of your hal file

the second part is a sample of the NVEM config.txt. the config.txt is what configures the remora hardware to the remora software. the hal file is what connects the remora software to the linuxcnc software. i included it to emphasize the relationship between which IO on the board does what in linuxcnc

The ini file is what configures your linuxcnc machine, so speeds of each axis, the travel, where the home switch is, how many axis/joints, the gui, etc
  • Hakan
  • Hakan
03 May 2025 21:08
Replied by Hakan on topic Using POSIX realtime

Using POSIX realtime

Category: EtherCAT

Just type the command "ethercat debug 1"
 
  • IB_CnC
  • IB_CnC
03 May 2025 20:57 - 03 May 2025 22:23

Probe Basic and Carousel ATC with Geneva and Stepper

Category: QtPyVCP

Today I rewired the carousel stepper driver to the MESA hardware stepgen nr4, which was a 5min job.
Consecutively, I spent 4 hours trying to get it running again.

The stepgen in velocity mode is controlled mainly by "velocity-cmd" which takes a float value.
Positive for CW and negative for CCW.
Main problem was setting the float value with the two digital outputs ( motion.digital-out-03 & motion.digital-out-04) that are triggered for CW and CCW carousel rotation. 

But in the end I solved it using MUX4: linuxcnc.org/docs/2.4/html/man/man9/mux4.9.html

# --- (Carousel CCW / REV) 
net ATC_Motor_CCW mux4.0.sel0 <= motion.digital-out-03
net ATC_Motor_CW mux4.0.sel1 <= motion.digital-out-04 

net ATC_Motor_DIR_VEL hm2_7i96s.0.stepgen.04.velocity-cmd mux4.0.out 

net ATC_Motor_CCW_SPD mux4.0.in1
sets ATC_Motor_CCW_SPD 5000

net ATC_Motor_CW_SPD mux4.0.in2
sets ATC_Motor_CW_SPD -5000 

net ATC_Motor_OFF_SPD mux4.0.in0
sets ATC_Motor_OFF_SPD 0 

net ATC_Motor_OFF2_SPD mux4.0.in3
sets ATC_Motor_OFF2_SPD 0  


#*******************# ATC Stepgen#******************* 

# Step Gen signals/setup
setp hm2_7i96s.0.stepgen.04.steplen 20000       # Step length (nanoseconds) 20 usec
setp hm2_7i96s.0.stepgen.04.stepspace 20000  # Step space (nanoseconds) 20 usec
setp hm2_7i96s.0.stepgen.04.maxaccel 50000    # Maximum acceleration (steps/second^2) so 1/10 second to full speed
setp hm2_7i96s.0.stepgen.04.maxvel 5000         # Maximum velocity (steps/second)
setp hm2_7i96s.0.stepgen.04.step_type 0           # Regular step type
setp hm2_7i96s.0.stepgen.04.dirsetup 50000      # Direction setup time (nanoseconds) 50 usec
setp hm2_7i96s.0.stepgen.04.dirhold 50000        # Direction hold time (nanoseconds) 00 usec
setp hm2_7i96s.0.stepgen.04.control-type 1        # Control type (1 for velocity control)
setp hm2_7i96s.0.stepgen.04.enable True            # Enable the step generator initially 


No more delayed response!!!
 
  • csurimilan
  • csurimilan
03 May 2025 20:47

How to change jog speed using joystick buttons (QtDragon + HAL)?

Category: HAL

Do you have an idea how can i solve this issue?
  • Spyderbreath
  • Spyderbreath's Avatar
03 May 2025 20:36
Replied by Spyderbreath on topic Remora - ethernet NVEM / EC300 / EC500 cnc board

Remora - ethernet NVEM / EC300 / EC500 cnc board

Category: Computers and Hardware

Correct me if I am wrong, being all new to this, but that first bit of "code" you listed there looks to be from a .hal file and not an .ini file? If so then that gets me even further along and might be enough for me to get dangerous and take a stab at it.
  • meister
  • meister
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