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Post History: Paul

Paul

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Hi, there is no cap, so 100% is the max which is about 18mA on the K40. Running at laser at 100% wil …In: Unable to increase power above 20%

6 years ago

Hi, it can have various causes: Laser ground for PWM is bad hence it intermittently floats (las …In: PWM Control issues (laser is firing more than set in software)

6 years ago

Note M codes don't work when the gantry is not moving in laser mode $32=1In: M3=off M4=on

6 years ago

Hi Daniel, it's hard to tell. Probably the LO connection is loose hence the laser stays on. $28 …In: M3=off M4=on

6 years ago

Hi, it's hard to tell since the machine is 10 years and many things might not work. The connect …In: Will the Gerbil work with my hardware?

6 years ago

Normally when one axis does not home correctly, it's a switch issue (electronic switch voltage …In: Need Help with Homing Issue

6 years ago

Hi, you can set the S parm in Lightburn and Mini Gerbil ($30). Noramlly you sync them and set both t …In: Hard set maximum PSU power

6 years ago

also check the earth of the mains see https://awesometech1.wpengine.com/k40-laser-grounding-instruct …In: Higher Laser Power setting causing stepper motors to loose steps

6 years ago

Hi that is very strange and I would suggest to use a different program to verify and debug it. Yo …In: Mini Gerbil beginner issues (Optical End stops, No working firmware, Unlocking Laser motors)

6 years ago

Hi, the noise filter or cap (non-polarised 100 nF) can be connected between the screw terminals 5V a …In: check door alarm?

6 years ago

Yes, a separate power supply can be used. You need to take in the following considerations: …In: Power supply

6 years ago

Hi, Yes you can issue a $X command which unlocks the gantry. If you set up a macro in Laserweb with …In: Mini Gerbil beginner issues (Optical End stops, No working firmware, Unlocking Laser motors)

6 years ago

Hi Rommel, the mini Gerbil does have noise suppressors on the board. The additional filtering can be …In: check door alarm?

6 years ago

Hi Riley, The speed on the Mini Gerbil is not so accurate (it's actually higher then indicat …In: jerking

6 years ago

Hi, Some power supplies are noisy and can cause intermittent behaviour. You can install a 1 micro …In: check door alarm?

6 years ago

Hi Josh, A potmeter is not required unless you want to manually adjust the power by hand rather t …In: Potentiometer needed with mini gerbil?

6 years ago

These artefacts happen when the LO laser on signal has some resistance e.g. bad connection. Lightbur …In: Laser not shutting off on moves

6 years ago

usually a loose PWM wire or bad connection causes this issue. Check the connection between the PWM o …In: MA staying around 12-14

6 years ago

The mini gerbil does have resetable fuses on the pcb. They reset when not powered and after a few mi …In: machine won't turn on

6 years ago

I suspect a power supply issue (too weak to drive the motors).In: troubleshooting

6 years ago

Hi you can swap the X and Y axis step sticks (tiny little pcbs on the mini). If the issue swapped ov …In: Mini Gerbil issues after sparking/new psu

6 years ago

Hi the power connector is an MTA156 which can be bought from RS-Online, Element14 and DigiKey.In: where to find parts for power connector ?

6 years ago

Hi In order for the laser to fire, the following connections on the power supply needs to be grounde …In: No laser power

6 years ago

Hi the mini Gerbil has 16 bits PWM and the best application to use the mini is Lightburn (there is a …In: 16 bit pwm upgrade for k40

6 years ago

Hi Arne, my apologies but we got spammed and our email within our website went down. Happy to hel …In: need help MiniGerbil does not work

6 years ago

The grinding issue is caused by the Limit switches not connecting properly. The plug must be turned …In: Griding motors on non-ribbon k40 version

6 years ago

Hi Mario, it seems that the LO signal is not active or connected. Please send me some photo's s …In: Lightburn not firing my K40

6 years ago

You could add a switch between the PWM input and the PWM output from the MG and PWM out put from the …In: 'switch machine' switch????

6 years ago

Hi, this is a difficult issue since it can have many causes but best is to debug it systematically. …In: Mini GRBL Not Found

6 years ago

I speculate that it is related to pushing to 8 bit controller too hard on speed. Maybe try to half t …In: Higher Laser Power setting causing stepper motors to loose steps

6 years ago

another possibility is that the pause/resume header pin gets triggered despite not connected (static …In: Getting a message that says restoring spindle

6 years ago

Hi Roger, there should be a little m4 bolt in the middle (bottom).In: can't open co2 lid

6 years ago

Hi can you try to set the controller in CNC mode via $32=0 and retest? Please let me know what happe …In: Legacy Gerbil GRBL-M3 No Laser ON with M3

6 years ago

Hi, sometimes it can be challenging to fix the various connectors. However the catching lip is not r …In: Y-Axis connector issues...

6 years ago

Hi Vincent, Glad it worked out. It can be challenging to figure out what is happening especially rem …In: error code 9 (end stop)

6 years ago

Okay, first unlock the controller via $X then issue the G0 X10 Y10 command and see if that get you m …In: error code 9 (end stop)

6 years ago

In addition to this thread... I saw the screen shot where it says error 9. The limits are not trigge …In: error code 9 (end stop)

6 years ago

Hi Motorxy, The alternative is a bit of a work around. You can save the G-code file instead of li …In: No homing on extension

6 years ago

Hi Vincent, It is possible that electrical noise will distort the limit signals. However the MG h …In: error code 9 (end stop)

6 years ago

Hi Smestephens, There are a few articles on the k40 forum on how to debug the optical limits (rib …In: Optical Limit Switches Not Working

6 years ago

Another post about the topic that will help you to debug it. https://awesometech1.wpengine.com/k4 …In: error code 9 (end stop)

6 years ago

Hi Vicent, My apologies for the late reply but Dan is snowed under with running Awesome …In: error code 9 (end stop)

6 years ago

Hi Tristam, You can hook up a potmeter (5kOhm) on the 5V, IN and Gnd terminals of the K40 laser P …In: Fixed output mA

6 years ago

Electronic Limits $27=2.5 Mechanical limits $27=4 $27=physical hysteresis between the point of …In: $ Settings setup hassle

6 years ago

Yes we could change the firmware to have a low level instead of 5V DC at start up. Other suggesti …In: 3 Way switch to enable test fire

6 years ago

That's great to hear Billy. I hope it is now working properly.In: noise on serial connecttion

6 years ago

Hi Billy, A bad earth (green/yellow) on the K40 and or middle prong of the mains outlet or plug o …In: noise on serial connecttion

6 years ago

Hi Robert, I would suggest to isolate the power issue. Maybe you can run the board from the USB p …In: Power increase after engraving for a while.

6 years ago

The Gnd and 5V are already available in the Big Power Connector (4 pin connector) so they are redund …In: NMF installation problems

6 years ago

The status report $10 is less supported in Lightburn. The full report $10=31 is no longer supported …In: $10 no fully supported in LightBurn

6 years ago

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