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  • Aciera
  • Aciera's Avatar
08 Sep 2025 08:44

Kinematic model for a 5axis mill with universal (nutating) head

Category: Show Your Stuff

Can you post your modified kinemaitics file and your ini file?
  • hitchhiker
  • hitchhiker
08 Sep 2025 07:21
Proximity sensor hardware debounce? was created by hitchhiker

Proximity sensor hardware debounce?

Category: Basic Configuration

Hi ! I struggle with a failure with my toolchanger.
i use the latest carousel.comp.

the atc is controlled by 3 proximity sensors.
the proximity sensors are npn normaly open.
i connect them to my mesa 7i92t.
on the mesa 7i92t i have the pullup jumper selected.

If i connect the sensor to 24v,gnd from mesa (on the idc connector) together with gnd of the 24v supply and the signal cable to a input on the mesa i see the pin change the state if i hold the sensor to a screw or something metallic.


original on this machine the signal cable goes to a 22k ohm resistor which is connected to ground. Then it goes to another 22k resistor in series.. which haves a ceramic cap 1nf to gnd. and then to a 74c14 schmitttrigger.. from there it goes to the mcu.

i will draw a small sketch later.

in linuxcnc i debounce the pin with the value 3.
the sensor cables ate not shielded.. and are near to the main drive and maindrive cables.. main drive becomes a 280v pwm signal up to 5amps.

so sometimes the atc stops turning anywhere .. i think it get count signal.. but thete is no count signal.

should i clean the signals like original controller it do?

thanks
  • emresensoy
  • emresensoy
08 Sep 2025 05:55 - 08 Sep 2025 06:18

EtherCAT 32x Isolated IO + 1x 5V Differential Encoder Input

Category: Show Your Stuff

On the way,
32x isolated digital input,
32x isolated digital output (500mA each)
1x Differential encoder input
6 Layer PCB

Ethercat IO board for CNC and Machine Manual Panels,
  • ziggi
  • ziggi's Avatar
08 Sep 2025 05:48 - 08 Sep 2025 05:49

Troubles to get started with SD240 Retrofit

Category: Turning

Ok, I will of course do so, but will take a bit until I have access to the machine.
Question: there is also a 7i37 connected to the 7i80-  has the 7i37 be disconnected also? Guess so.
  • jschulze
  • jschulze
08 Sep 2025 03:06

Kinematic model for a 5axis mill with universal (nutating) head

Category: Show Your Stuff

Sorry, for all the questions, but I'm having a bit of trouble with TWP and was hoping I could get some help. TCP is working totally fine and it seems like TWP is partially working, but not quite correctly. Say I issue G68.2 X0Y0Z0 I0J-45K0 and G53.1, the spindle orients itself correctly and I can jog in X and Y, but not Z. Depending on the angles I use I get different axes I can jog. Using G68.3 I can see the plane set in the vismach, but I'm not able to jog at all.

I did mess with the kinematics file to make it work for my machine. TCP works great, so it seems to be working (I added a tandem Y axis and a W axis that isn't involved in the tcp math). Is there anything I could have messed up in the kinematics file? Also, I had to scale some things in the vismach since I'm working in inches. Is there anything in the twp remap files that I would need to scale? Thanks again for all the help.
  • PCW
  • PCW's Avatar
08 Sep 2025 03:03

Driving my SyilX3 and Plasma cutter machine with 5i25t which provided driver?

Category: Driver Boards

If you have the SyilX3 parallel port hal file, that can be used to figured out the pinout

In any case the pinout will be needed to determine which firmware to use.
 
  • stirra
  • stirra
08 Sep 2025 02:50
Replied by stirra on topic Problems with Lichuan Ethercat servo drive

Problems with Lichuan Ethercat servo drive

Category: EtherCAT

Hello.
I had to recreate LC10 homing code from zero reading manual designated for a driver with a motor with incremental encoder . ( I thought original code was difficult to fix )

If you still have some problems, I consider to open my codes...( I have something to do for some improvement )
 

@tar_san - I very much would like to see your code.  I am not happy with my fixes to the original code.  Thank you!

-- Ralph
  • joego
  • joego
08 Sep 2025 02:50

Driving my SyilX3 and Plasma cutter machine with 5i25t which provided driver?

Category: Driver Boards

I'm not sure who makes the drives on them I bought them already made. I had them working with mach3 but lost the recipe. I got the syilx3 machine running ok with linuxcnc but I would like to get the mesa board working. They both have proprietary break out boards on them.
  • tommylight
  • tommylight's Avatar
08 Sep 2025 01:52

Driving my SyilX3 and Plasma cutter machine with 5i25t which provided driver?

Category: Driver Boards

Moved to "Driver Boards"
-
What drives do those machines use?
Are they parallel port controlled?
Do they have some kind of BOB or controller?
Or, how are those machines connected to PC now?
  • joego
  • joego
08 Sep 2025 01:24

Driving my SyilX3 and Plasma cutter machine with 5i25t which provided driver?

Category: Driver Boards

HI, I bought a 5i25t board and no daughter card. I want to run my existing hardware, a syilX3 mill and a plasma cutter. Is there a provided firmware that will run these machines or do I have to create a new one? If I have to create a new one what is the best tool to use for this? These are both basic stepper machines with 4 axis for the syil and 3 for plasma cutter.
Thanks in advance for you answers.
  • PCW
  • PCW's Avatar
08 Sep 2025 00:52

How to correctly connect stepper drivers to transformer.

Category: Milling Machines

Also you may do better performance wise by using 2 windings in series for all drives
so 57V rather than 28.5V (assuming the drive is OK with 57VAC, )

28.5V is roughly equal to 40 VDC  and 57V is roughly equal to 80VDC

You would get better high speed performance with the 57VAC
  • tommylight
  • tommylight's Avatar
08 Sep 2025 00:44

How to correctly connect stepper drivers to transformer.

Category: Milling Machines

To each it's own.
-
There in no difference either way will work, but i like to keep things compartmentalized.
  • langdons
  • langdons's Avatar
08 Sep 2025 00:00

How to correctly connect stepper drivers to transformer.

Category: Milling Machines

I have a 3-axis CNC router machine with a toroidal transformer that has 3 separate secondary windings each 28.5VAC.

The transformer powers 3 fake DM860 stepper drivers, which each power a 4.6A (RMS) stepper motor.

Should I connect all windings in parallel and power the drivers from the combined power of all windings, or can I just connect each driver to its own winding?

 
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