Centroid Community CNC Support Forum

USB BOB kit will consist of the board, three rotary encoders, three rotary encoder ribbon cables, USB cable and stand off's

USB BOB has its own thread now.
https://centroidcncforum.com/viewtopic. ... 990#p85990

suntravel wrote: ↑Thu Feb 29, 2024 10:37 am What type of joystick will work to move the axes, and could it move diagonal ?

Uwe

so an 8 switch joy stick would be used? is there such a beast?

cnckeith wrote: ↑Mon Apr 01, 2024 8:04 pm

suntravel wrote: ↑Thu Feb 29, 2024 10:37 am What type of joystick will work to move the axes, and could it move diagonal ?

Uwe

so an 8 switch joy stick would be used? is there such a beast?

It might be harder to find an industrial joystick with octagonal gating but it is really easy to find arcade sticks with interchangeable gates. To me, the main challenge would be writing the PLC such that two jog button inputs translate to the appropriate diagonal jog button input.

centroid467 wrote: ↑Tue Apr 02, 2024 9:24 am

cnckeith wrote: ↑Mon Apr 01, 2024 8:04 pm

suntravel wrote: ↑Thu Feb 29, 2024 10:37 am What type of joystick will work to move the axes, and could it move diagonal ?

Uwe

so an 8 switch joy stick would be used? is there such a beast?

It might be harder to find an industrial joystick with octagonal gating but it is really easy to find arcade sticks with interchangeable gates. To me, the main challenge would be writing the PLC such that two jog button inputs translate to the appropriate diagonal jog button input.

we already have diagonal on the VCP, one button for each diagonal. so that is not an issue , no need for two inputs on at same time.

cnckeith wrote: ↑Tue Apr 02, 2024 2:00 pm

centroid467 wrote: ↑Tue Apr 02, 2024 9:24 am

cnckeith wrote: ↑Mon Apr 01, 2024 8:04 pm



so an 8 switch joy stick would be used? is there such a beast?

It might be harder to find an industrial joystick with octagonal gating but it is really easy to find arcade sticks with interchangeable gates. To me, the main challenge would be writing the PLC such that two jog button inputs translate to the appropriate diagonal jog button input.

we already have diagonal on the VCP, one button for each diagonal. so that is not an issue , no need for two inputs on at same time.

I'm just saying that it might be easier to have two inputs on at the same time than to find a suitable 8 switch joystick.

If you want a physical joystick to do diagonal jogging, then you need a joystick with 8 contacts (which you could network to 4 PLC inputs, using diodes).

To do it with an 8-position 4-contact joystick, you would probably need some convoluted interface electronics or PLC logic, to ensure that both axis-jogging requests are processed in the same scan of the PLC program. I.e., either both inputs need to close simultaneously +/- 1ms, or the PLC program needs to hold off all joystick jog requests for ca. 100ms, while it waits to see if a second axis jog request is going to arrive to go with it.

Two inputs on at the same time does work just fine, as long as they both close in the same scan of the PLC program.

Since diagonal jogging was added to CNC12, it has been possible to do diagonal jogging with a Centroid jog panel (e.g. pn11077) with no special PLC support. You just have to press both buttons at exactly the same time. This is, of course, hit and miss.

Hi, i just saw this thread and i am wondering, why i did not read earlier about that.

This Bob looks really great. Exactly that what i am looking for. Is there an Information, when it is available? Or do you still need beta tester?

This is my acorn Projekt and i need a lot of Inputs/outputs for hardwired Switches, additional encoder Port for quick control of tailstock, Status LEDs, coolant, etc.

https://photos.app.goo.gl/M6hT74zYTCGFTgs86

Best regards
Michael

RC-Lights wrote: ↑Wed Apr 03, 2024 11:47 am Hi, i just saw this thread and i am wondering, why i did not read earlier about that.

This Bob looks really great. Exactly that what i am looking for. Is there an Information, when it is available? Or do you still need beta tester?

This is my acorn Projekt and i need a lot of Inputs/outputs for hardwired Switches, additional encoder Port for quick control of tailstock, Status LEDs, coolant, etc.

https://photos.app.goo.gl/M6hT74zYTCGFTgs86

Best regards
Michael

i have one more alpha test slot open , dm me and i'll send you the details.