Svenska ElektronikForumet

So, with everything wired, and Mach3 set up to control the spindle (as if it were running a mill) on Output 1, I was able to do a few tests. However, there was a problem:

M3 ProblemAt this juncture I was using M3 and M5 NC-codes to turn the laser on and off. However a delay occurs between these being sent, and the next line of G-code, and this results in a 'hole' being created at points where the beam is switched on and not moving. A quick search on-line shows that I wasn't the first to have problems with this (apparently there's a 500mS delay that's intended to give the spindle time to get up to speed).

The best solution I found was posted on the Mach 3 forum at
12653.msg82436.html#msg82436,http://www.machsupport.com/forum/index. ... l#msg82436
where twehr (cheers buddy) suggests using M11P1 and M10P1 instead.
Twehr notes that M11P1 is ON and M10P1 is OFF (intuitively backward from the M3/M4, M5 combination. The 'P1' bit of the command is specifying the Output number i.e. output #1 (because that's the Mach 3 output that he, and I, have configured and wired to control the beam).

Twehr also points out that M11/M10 do NOT execute immediately but wait until there is a subsequent G-code to cause movement. Clearly this is ideal when we're switching the beam on, but it's important to remember to program some move to take place AFTER switch off if you use M10P1 for off...

...but I'm not doing. I'm using M5. Even though I'm using M11P1 for on, I can still use M5 for off and then there's no need for a move immediately afterwards (even though there usually is one).

netrunner skrev:(försöker få blivande tjejen att bli mer positiv till laserskäraren)

Mediespecialist skrev:Trådlånar lite
Detta har hänt… köpte lasern sent 2011, har gjort följande:
Bytt 1 stegmotor
Nya homing brytare
Kastat hela Moshi kortet och bytt mot en bob och 2 drivare
Bytt laserröret och laseragget + nya kablar och slangar
Stulit Londs air assist idé… Tackar!
Konfigurerat Sheetcam och Mach3

Tricket har varit att tända lasern med Z dir när Z som inte finns som axel går neråt och släcka när Z går uppåt, funkar super. Så idag har vi kört lite texter med egenritade texter + några ”single stroke” typsnitt med Sheetcam vilket funkar kanon… men bilder då….

Jag har provat DotG (http://dotg.weebly.com/) men Mach3 gör pauser i samband med Z rörelser vilket är helt normalt. Sen har vi provat Mach3 plugginet ”Engraving Trigger for Laser or Impact”
Vilket gör kanonsnygga rörelser men dom korta 5us pulserna är så korta att lasern inte hinner trigga.

Vi hittade även en ny version av samma plugg med lite fler inställningar men det blev inte bättre

Man kan höra att set ”sjunger” i röret och agget men det blir ingen output…

Någon som lyckats? Eller har en annan superbra lösning?

/ Petter