CNC Workflow / Wasteboard Surface Patch

[@MarionMakarewicz]

I liked this practical, step by step video. I am finishing my home build CNC router and the workflow is just mind boggling to keep everything straight. For the time being, I'm sticking with a big sharpie and I keep making new jobs and trying it out to see where I get caught up. And making sure I don't click the wrong button on my interface. I have several times hit the home button for Z instead of the set work coordinate home and it crashes away since I din't have anything set up for Z homing.

[@EducatingSavvas]

I would recommend having all the homing limits set up before starting - it produces better reliability and repeatability, but it's also safer as you can use soft limits so head of the machine won't crash into the extremities.

[@SvenPHX]

Maestro ...

[@UberAlphaSirus]

Jezz gezz, that was a lot of G's. Nice of them to give you trial keyz. What else rhymes with cheese, hmm, er, CNCs. I am on a roule. Nice recovery and roundness results from the unpuckering puck. Very nice machine. I just got myself a 3 and 1/2 foot bed 70 year old south bend lathe sb9c, with not much wear. I can make long round things now. Well when I put all together again.

[@EducatingSavvas]

As long as it's a metal lathe I can forgive you! Yeah the licence is only temporary so it's like hiring a fast car - just need to make sure it doesn't get wrecked.

[@UberAlphaSirus]

@@EducatingSavvas lol, it's like my cambam free trial. 40 uses, so when i use it, the pc stays on for weeks.

[@foxtrot1787]

do you have a center probing macro?

[@donepearce]

Your Z zeroing technique is going to accumulate errors. Just use a piece of metal of known thickness and drop it on the top surface of the job. Use the job surface as your datum. I do this. My code is G91G21; Incremental mode and coordinates to mm G38.2Z-30F100; Lower the tool rapidly until it contacts (pin A5 goes low on my controller). Give up at 30mm in case probing fails G0Z.3; Lift the tool 0.3mm G38.2Z-1.11F10; Lower the tool slowly until it contacts G92 Z9.79; Offset the height coordinate by the height of the measuring puck. Mine is 9.79mm thick G91; Again set incremental mode (just to make sure) G0 Z10.21; Raise the tool until it is 20mm (9.79 + 10.21) above the reference level M30 End

[@jimmer147]

Sorry to be the bearer of bad news buts it’s time to start mk3 cnc control, grbl just released a new version which allows the slaved Y axis stepper to home using a separate limit switch. This allows automatic gantry squaring. It’s only one extra wire......... Full details and instructions are in the new config-h file. Good luck 😉

[@EducatingSavvas]

I've been waiting for that to be released for ages. I couldn't understand why they would keep two different type of coolants / flood terminals but not move to dual axis homing. Anyway I got a change to use a Duet 2 and have set up another machine with dual axis homing and lots of other features. Reprap is not great for CNC but it's slowly changing.

[@erdemonol]

I use builder’s bog to patch the waste board if I need to.

[@thewmonster]

im here for the accordion playing

[@IceTurf]

How do you get the LED to turn red when its running?

[@EducatingSavvas]

I wired the spindle enable pin via a relay to the red LED lights on a RGBWW strip lights. I go over this in one of the previous videos - CNC Control Box

[@IceTurf]

@@EducatingSavvas Ah okay, sorry for the dumb question!

[@OzDeaDMeaT]

I came for the CNC, I stayed for the Accordion.