I think you should perform an M502 followed by an M500. That will solve the issue and load the settings from the firmware to the EEPROM.by Ohmarinus - Firmware - Marlin
Sooooo meanwhile I've gotten to the point where a better sacrificial tower has improved the print quality drastically. Layer minimal time didn't work wonders because somehow Cura doesn't add in a retract when moving the nozzle away and it only moves the head 2cm away so it still keeps radiating heat onto the piece. I am currently printing an entirely new X-carriage and will also pack the hotendby Ohmarinus - Printing
You can test if there is some metal tape available locally that triggers the sensor. Then you can put that on each corner of the glass pane and have the sensor 'sense' the four specific areas to level. That should be enough as glass should be flat.by Ohmarinus - CoreXY Machines
Alright, turns out that the model was easy to print any way. I'm trying some more bigger models now with a sacrificial tower, but it keeps giving me problems. Somehow everything curls up. Even with the nozzle set to 0.4 and having everything tuned absolutely correctly. I wonder if it could help to insulate the heater block? So that it doesn't radiate out as much heat when it's above the printed mby Ohmarinus - Printing
QuoteVDX ... look at the difference between "SCARA" and "parallel SCARA"!! -- it's a complete different world in respect of speed, accuracy and precision Check this cool one:by Ohmarinus - Mechanics
I have the same issues with cheap Chinese sd cards. What helped me out with the same problem was to simply try another sd card. Some cards just give me this error even though they are in working condition. Also, I've never enabled '#define SDCARD_CONNECTION LCD' so I'm not sure if that's necessary.by Ohmarinus - RAMPS Electronics
Indeed bigger object and a sacrificial tower did help. Had one little hickup near the top of the dome and of course I still need to tweak the support material settings. But it's already quite promising. Also, the ABS print just doesn't want to release from the bed at all so I'm quite confident about doing larger prints soon. Raised the printing speed to 80mm/s now with great results. Quickly deby Ohmarinus - Printing
Quotejspring111 I'm trying to understand how settings are stored in a controller board (in my case it's a RAMBO board). I think I know there is flash memory, EEPROM and possibly something else? I'm thinking settings I change from the control on the printer and maybe Pronterface are stored in flash and go away when the printer is shut down and restarted? I also believe you can save these settby Ohmarinus - Firmware - Marlin
QuoteNunocamelias QuoteRobotics909 I have build my first printer. I am facing problem with homing. X total length = 600 mm Y total length = 600 mm Z total length = 600 mm Bed Size is : 300x300 My first home is good. All the things are in the middle. After that I again do the home then the printer head goes to right side What is wrong ? Do you resolve the problem? If your size bed is 300by Ohmarinus - Reprappers
Quotethe_digital_dentist I think that the main problem is pretty obvious. The object being printed is very small. That means the layer time is small, which means the plastic from previous layer hasn't cooled and solidified before the nozzle comes back and dumps more molten plastic on the print. Try printing 3 or 4 objects separated on the bed to allow more time for the plastic to cool and solidifby Ohmarinus - Printing
Hi all, a copy-paste from a topic about the machine, but I decided to make a topic about it here. My prints are coming out worse and worse. It seems the closed chamber is not ideal for ABS but I read everywhere it is... After calibrating extrusion perfectly, both with flow and retraction calibration I'm running into these issues: The first few prints were very good (mostly single wall itemsby Ohmarinus - Printing
#define DEFAULT_MAX_FEEDRATE { 300, 300, 5, 25 } #define DEFAULT_MAX_ACCELERATION { 3000, 3000, 100, 10000 } #define DEFAULT_ACCELERATION 3000 // X, Y, Z and E acceleration for printing moves #define DEFAULT_RETRACT_ACCELERATION 3000 // E acceleration for retracts #define DEFAULT_TRAVEL_ACCELERATION 3000 // X, Y, Z acceleration for travel (non printing) moves #dby Ohmarinus - General
Quotethe_digital_dentist I tested shorting the Z axis motor in my belt lifted Z axis in UMMD before I installed the worm gear drive. Here's what happened... The braking action is proportional to the current in the windings. The current is a function of the motor's rotational speed. If the motor doesn't spin, there's no current and no braking. So the motor spins, and the bed drops. Shorting the coby Ohmarinus - Reprappers
QuoteGovahnator QuoteReanimator2k I'm using a different solution. Maybe it will be helpful to you. Source(rus) Interesting! Thanks for sharing. I will look further into this. Not sure if i can use it on a Nema23 and Duet2. Also not sure if this combined with 4.7 ohm resistors will do for me. It seems to be quite universal. I think the most important thing is to use bipolar stepper motors. A vby Ohmarinus - Reprappers
QuoteKayjay I realise this is an old thread but as my question is very close to the topic of this thread I thought I would ask here. I use a Bigbox bought a few years back from E3D-Online but recently I have had a possible problem with the Duet 2 board I use in it so it's currently away being tested (the board not the Bigbox). In the meantime I'd like to use my RAMPS board from my old Mendel toby Ohmarinus - RAMPS Electronics
Moved to Marlin since the ESP3D creator said it's a Marlin limitation. It's quite mindboggling how nobody else seems to have this issue. Or simply nobody uses the SKR 1.4 with screen and upload? Anyway, my issue persists and flashing new firmware on the ESP-01S didn't help. If anyone knows how to approach this issue I would be grateful! Some more info: Can it be that '#define LONG_FILENAME_HOby Ohmarinus - Firmware - Marlin
QuoteVDX ... a parallel SCARA is pretty much fun too Ha, I was looking into this machine earlier today:by Ohmarinus - Mechanics
CoreXY is fun, but honestly, the best fun I had was with a Delta. Steep learning curve, many things that can go wrong, many variables that you need to keep track of. And everything has to be perfect. But once you get it down, boy is it a fun printer to print with!by Ohmarinus - Mechanics
Don't feed the trolls.by Ohmarinus - Firmware - Marlin
You can tune the settings in the firmware, but you can also do it live through a USB connection with Host software like Pronterface. This way you don't have to flash the firmware every time and it works just as well. The command to edit offsets is: M851 So when you type in M851 the machine returns the current offsets. If you want to set ONLY the Z-offset, you can send M851 Z So if the probe trby Ohmarinus - Firmware - Marlin
Quoteguru_florida I am back on my feet! Dismantled the the XY assembly and cleaned all the rods. Put the rods in my drill and spun them while polishing them up and down with scotchbrite pads. Then cleaned with alcohol. Definitely the brass sleeves are running smoothly and will slide on their own with a little slope. Machine is working with less drag. However, I dont think that was my issue. In myby Ohmarinus - General
Alright, my first advice would be to move the machine through a host program via usb. This makes movement much smoother. It could be too high feedrate or acceleration settings as well. Furthermore you can already see the top belt on the right side of the X-carriage isn't coming straight out of the carriage. Can it be the belt paths aren't straight? Also indeed sounds like the motors are skippingby Ohmarinus - CoreXY Machines
QuoteVDX ... from 5:20min you can see the "wobbliness" of this type of kinematics -- so here it's all for "stiffness" or high precision bearings ... so not really suited for high resolution/precision applications in the DIY-range. But, with good (expensive) components, such systems are used for CNC-milling too I know, the wobbly characteristics of the machine were immediately apparent to me, yby Ohmarinus - Reprappers
I immediately had to think of this 3DOF robot arm by skyentific haha:by Ohmarinus - Reprappers
I'm quite curious which material you used to print the X-carriage? I knew PLA was a bad choice for a machine with a heated chamber, sadly the X-carriage decided to melt prematurely, but I could get enough tests out of the machine to see if it works and it works really well. Right now I've set my sights on PETG since that's the material I am still able to print with my other printers, but eventuaby Ohmarinus - General
Would you be able to make a video and some photo's of your build and a video of the binding? It would help a great deal to pinpoint the issue.by Ohmarinus - CoreXY Machines
It really is more of a proof of concept. Maybe you can find the original post here on the forums. Nicholas is a frequent visitor here and the video was used in one of his topics. If you can find back the topic, then in there will be all the info you need and you will see it's not a very viable concept sadly as VDX explained.by Ohmarinus - Reprappers
Do you have cooling fins on your stepper drivers? It can be the drivers overheating and cutting out. This may happen when the current is set to high. Then they cool down and start moving again, when they reach a thermal equilibrium almost they keep cooling down and moving again in cycles more like microseconds so it may come across as if they stop moving because they immediately overheat when theby Ohmarinus - CoreXY Machines
QuoteVDX ... is it the pure filename (e.g. "NNNNNNNN.EEE") or maybe the path or connection-naming added? Using a filename with 8 characters and 3 extension characters does work for the upload. But the main thing is that I haven't found anyone else with this issue so I'm worried that this error is only hitting a few people. I'm starting to think maybe it's not the TFT35 but it's maybe the ESP3D.bby Ohmarinus - Firmware - Marlin
As the title describes, I have put a lot of work in getting the printer controls to work over WiFi with the TFT35 v3.0 screen from BigTreeTech, everything works, but when I try to upload a gcode file through the web interface I get this error no matter what kind of filename I use. From what I understand this issue was fixed but it stays persistent in my setup. Does anyone have a solution to thby Ohmarinus - Firmware - Marlin