Have you got eeprom enabled? If so you probably haven't been reloading the settings after you change them in the firmware. It's a common thing people forget to do when setting up ABL. It's been so long since I've had to change anything I can't remember the exact M codes but it's well documented, something like M502 then M500. That seems the most likely thing if you say changing the values has noby Brainscan - General Mendel Topics
I'm not even sure it has a version number (sorry I'm at work so can't check until later) but it's an old modified version given to me by Roxy at 3dprintboard forum. I think the files are still available on the forum. I think if you search google for G29 advanced it should still pop up. If you don't have any luck with that let me know and I'll share my copy and you can just alter the config filesby Brainscan - General Mendel Topics
Have you checked the latest bugs on GitHub? There has been an issue with bed levelling since last year when the developers started trying to make a stable and cleaner version. I'm still using a version from a couple of years ago that has the bed levelling before the bugs started. I've been told to stick with it until they confirm the latest version is bug free. I haven't been able to keep up withby Brainscan - General Mendel Topics
QuoteRiaanLR Hope you can help. I have the latest version of Marlin. Built my P3Steel a month ago. Using Repetier Host and Slic3r. Did you download the development branch of marlin? There is all sorts of bugs with the bed levelling at the moment. I think there is a more stable branch or download a previous version. There are discussions about it on git.by Brainscan - General Mendel Topics
Are you using the latest version of marlin? There have been a lot of changes and bugs cropping up for a while now and this could be one of them. If you are it might be worth searching git to see if anyone else is experiencing it or open a new issue.by Brainscan - General Mendel Topics
Quotejohnka @touchthebitum I have uncomment both. @Brainscan I set it to false when I wanted to find the offsets for X,Y,Z. After that procedure I set it to true and reflashed the firmware. When I home Z it declares as Z=0 the point it hit the probe microswitch but the nozzle is a few mm higher. With G1 Z0 the nozzle doesn't touch the glass. It stays at Z_PROBE_OFFSET_FROM_EXTRUDER height. I aby Brainscan - General Mendel Topics
Quotejohnka When I run G28 it moves to X,Y home position (0,0), then it moves to the middle of the bed, extends the probe and lowing down until it hits the microswitch. It hits the switch 3,55mm below my nozzle. I have entered the offset values on configuration. If I start a print the nozzle doesn't touch the bed. It stays at Z offset (3,55mm) where the switch triggered. What am I missing? See myby Brainscan - General Mendel Topics
Quotetouchthebitum Ok, I'm checking it. Where do I to do deactivation servo please? It's right after the z raise between probing in configuration.h Any luck with the M114 values?by Brainscan - General Mendel Topics
Sorry I'm not seeing where the M114 after homing and then M114 after manually moving the nozzle down to the bed are in that screen shot? Also I've just had a quick look and can't see much that would cause this problem but there are some other things you may want to change. You have z raise before probe at 4mm but your probe offset is around 16mm, with these values you'll break the probe if homingby Brainscan - General Mendel Topics
What were the values? I'll have a look at the config and get back to you. The capacitance probe I use is an NPN LJC18A3-H-Z/BX, I got it from e bay for about £10. You have to use a voltage divider made from a couple of resistors to get the signal to be below 5v. There are YouTube videos that show how to do that.by Brainscan - General Mendel Topics
That would be an inductive probe not a capacitance probe. I use different plates and coatings without a problem.by Brainscan - General Mendel Topics
You'll also want to do something about your probe, it's twitching more than I'd want it too. You should think about a capacitance probe it's much easier with no moving parts.by Brainscan - General Mendel Topics
If you send M114 does it show the nozzle at Z0? If you then manually move the nozzle down to the bed and send M114 again where does it say it is? Can you post you configuration.h file pleaseby Brainscan - General Mendel Topics
Have you disabled the min software end stops? If you haven't it will air print. Also if you have EEPROM on you should try M502 followed by M500.by Brainscan - General Mendel Topics
Sorry that was my fault, I read it in my email on my phone and didn't notice it was commented out. M502 is labelled in some places as restore factory settings or original configuration. It basically just means the numbers you've altered in marlin configuration.h are used to update your EEPROM. If you make a change to your probe offset in marlin and upload it without updating EEPROM the printerby Brainscan - General Mendel Topics
Why do you have 3 G28 commands? You should really only need one if using the safe z homing and two if not. Also have you updated your EEPROM after changing the z probe offset? Each time you update the offset you need to issue M502 to restore factory settings then save them with M500/501 sorry can't remember off the top of my head which one saves it. That seems to be the problem most people are hby Brainscan - General Mendel Topics
Sorry I still haven't been back at my computer but I just had a quick look at the 'after' (I can't view .zip files on my phone but .h is fine) at first glance I can't see why it wouldn't compile but I think you may want to check your bed level variables. You have z raise before homing at 4 but your probe offset is -12.35 which isn't enough clearance when it extends (I'm assuming you have a retracby Brainscan - General Mendel Topics
When I get a chance to be at my PC/printer later I will post my files for you to take a look at if you want? I will have a totally different set up to you so you can't use it unless you modify it to suit your machine, but if you want to use it as a comparison that's fine. I would also have to tell you I have some extra code in my setup thanks to Roxy which makes things work more smoothly and withby Brainscan - General Mendel Topics
Can you explain a little more about your problem? You said it keeps coming back with end stops inverted on arduino old and updated. I don't understand, do you mean it won't compile in the arduino IDE or are you having a problem when you issue G29? Why not try inverting the endstop if that's the problem? Taking someone else's files might help but probably just be easier fixing yours. Have you alreby Brainscan - General Mendel Topics
I'm a bit confused by what you mean too?! G28 does home all axis whether you have bed levelling or not. The fact that the nozzle is above the bed at the end is purely due to the z offset. Send G1 Z0 after homing and your nozzle will go to the bed. Really not sure what the issue is as this is expected behaviour. Also z offset should be set in configuration.h and then updated with M502 then M500, uby Brainscan - General Mendel Topics
Quotemaxaha1 So - this looks great. I'm dead sick of leveling the bed. Some PLAs its not so critical, but I;ve got this green stuff that that doesn't stick unless the bed temp and Z height from the bed are spot on. As well, the springs and screw adjusters seem to vary a little over very long prints where there has been lots of vibration (high speed hex infill for example). Anyway, I upgradedby Brainscan - General Mendel Topics
When changing the z probe offset you need to send M502 followed by M500 or it will just use the last settings stored in EEPROM, and yes the offset will be negative.by Brainscan - General Mendel Topics
Quoteregpye You can always add a lift in your start code. Adding a lift in the start code won't help this problem, sorry.by Brainscan - General Mendel Topics
QuoteFloyd Thanks guys, got it cranking away and working great for the G29 probe. Is there anyway to have the G28 z home work the same way? or atleast lift 2-3mm before retract? Roxy has edited the first post at 3dprintboard with info about how to add the retract to the G28 command.by Brainscan - General Mendel Topics
[3dprintboard.com] Roxy came up with some enhanced code for G29 and he said it's easy to add a blocking move to raise before retract. I forgot to ask him how to do it but he replies really quickly so if you request the change there he should help pretty swiftly. I recommend getting his M48 probe repeatabilty code too.by Brainscan - General Mendel Topics
You could try this // set the rectangle in which to probe #define LEFT_PROBE_BED_POSITION (X_PROBE_OFFSET_FROM_EXTRUDER+2) #define RIGHT_PROBE_BED_POSITION X_MAX_POS #define BACK_PROBE_BED_POSITION Y_MAX_POS #define FRONT_PROBE_BED_POSITION (Y_PROBE_OFFSET_FROM_EXTRUDER+2) // set the number of grid points per dimension // I wouldn't see a reason to go above 3 (=9 pby Brainscan - General Mendel Topics
So exactly what I said then.by Brainscan - General Mendel Topics
Is your home at the front left or back right? Also your probe offset is bigger than your grid size by 3 mm which I know has caused other people problems. Not sure if it makes a difference but maybe remove the - before 0 in y offset. Not sure if it treats 0 and -0 the same.by Brainscan - General Mendel Topics
Quoteddutch Hello I have prusa i3v I followed the instructions downloaded firmware from github entered as it said how to change firmware but when i verify it in arduino1.0.5-r5 i get the following errors SERIAL_PROTOCOLLN(((READ(X_MIN_PIN)^X_ENDSTOPS_INVERTING)?MSG_ENDSTOP_HIT:MSG_ENDSTOP_OPEN)); Marlin_main.cpp: In function 'void process_commands()': Marlin_main.cpp:1270: error: 'X_by Brainscan - General Mendel Topics
Quoteaboyd i have the same problem, it wont reach 60 C. the closest i got was 51 C and that was by starting off with 30 C then 40 C then 50 C however if i tried 60 C it wont go that high. its not a power issue as i have measured the voltage at the supply to be over 12 V. ive yet to find a way to fix it How hot does your MOSFET get? If you're still using the standard one it's probably overheatiby Brainscan - Printing