We have a printer at work that comes with a PEI bed - after 6 months the PEI was delaminating in some areas and had what looked like air bubbles under it. The printer company was quick to send us a replacement bed, but what I have taken from it is that PEI may not be the silver bullet it is made out to be. At home I use 3D EEz on an aluminum bed and I find that the print quality and adhesion isby atunguyd - General
As RFZ says, why bother with Z=0 since you will never print with Z=0. Decide on what you will use most as your first layer and calibrate to that. A set of feeler guages will not cost you much at any car parts store and you will get accurate guages for many heights, I use a 0.2mm feeler guage and calibrate my machine with the height set to 0.2mm. It is worth noting that you should calibrate toby atunguyd - General
Hi Dave, have you considered submitting these code changes to the Marlin GitHUB? I think it would be a good idea to pass it on to them.by atunguyd - Developers
If you are homing to the right then your X axis on your entire printer is resersed. Is there a reason you want it to home to the right? Can you not just put your endstop onto the left of the X axis and revert to homing in that direction? The homing is a reference to find the origin, putting to the X origin to the right will always mirror your prints.by atunguyd - General
You mean they don't make chocolate filament??????by atunguyd - Look what I made!
Slic3r has this option too - under cooling set the minimum layer time. If set to 30s then if a layer will take less than 30s to print slic3r will slow down the speed to ensure that the layer takes the 30s that you chose.by atunguyd - Printing
No you will need to count positive and negative Z moves then, remember the retractions are a up and then down, so I guess if you sum up the Z moves and add them algebraically you will have the total number of layers. This however becomes difficult with gcode that is absolute as opposed to relative because a retraction would be a z move to say 6.8mm then a Z move to 6.7mm. A relative commadn wouldby atunguyd - General
I have a question, As I understand it you are parsing the gcode on the SD card first to determine the number of layers by incrementing a count every time you see a Z move in the gcode. Would this not fall over when the slicer option to do a retract using Z as well is enabled as this will create many more Z movements that are not layer changes. Can I suggest that you rather do a current height vsby atunguyd - General
The 8 bit issue is not correct, if you look into the Marlin firmware you will see that there is copious amounts of double and float declarations. This makes the poor Aurduino really slow but still allows it to support large numbers. On the aurduno the float can support up to 7 digits so it is possible to address up to 1km (1 000 000mm) without decimal points and 10m (10 000.00mm) using two decimaby atunguyd - General
Hi, I am asking this here before I make any suggestions on the Marlin github as my issue may already have been addressed and I am missing it. I recently switched from using a host software (Repetier) to printing directly from SD card, last night I ran a very long print so I left it overnight, this morning the print was complete but I noticed that the heated bed was still hot. Looking at the GCodby atunguyd - Firmware - mainstream and related support
Are you sure that the pitch is 8mm? That is a very very coarse thread and will require massive torque to move things with. I suspect that the 8mm refers to the diameter and not the pitch, A leadscrew with a 8mm pitch would probably be very thick and not something you would be putting into a printer.by atunguyd - Mechanics
This is a usefull website to check which gauge wire you should be using. AWG Calculatorby atunguyd - Safety & Best Practices
Interesting topic and something I have recently been battling. I am using the Mk3 aluminum plate and I can tell you that this is by no means flat. First thing to consider is that you cant mount the plate in the mill and try to surface mill it flat, it just wont work with such a thin plate. You will need to remove metal from both sides to do this and having a heating element bonded to one side pby atunguyd - General
Have you wired it correctly? For 12V one of the wires must bridge two of the pads (which I think puts the elements in parallel), 24V you just use two pads.by atunguyd - General
Kre8, Since changing the laptop that I was using I have not seen this issue at all, I assume on my side this was the PC. I plan on reinstalling windows on that PC in the near future.by atunguyd - Repetier
Hi Kre8, I am getting what looks like the exact same problem, not all the time but it has happened enough to me. I have been trying to analyse this every time it happens, so far I have found the following: 1. There is nothing in repetiers log to indicate an issue, the last command is sent and then there is nothing. 2. On every time that this has happend I have found that the heaters are off butby atunguyd - Repetier