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kossel liner plus gcode

by wolfen99

Does anyone know how to make the hotend go to the top and stay there after a print? Mine goes to the top then comes back down about a third of the way before stopping after the print is finished. It has crashed into a couple of my print when I printed something that was around 285mm. it finished the print, goes to the top then comes back down. I was wondering if there was a end g code that I could use to keep it at the top and not come back down.here is my endstop g code Im using in cura right now.

extruder heater off
M140 S0 ;heated bed heater off (if you have it)
G91 ;relative positioning
G1 E-1 F300 ;retract the filament a bit before lifting the nozzle, to release some of the pressure
G1 Z+0.5 E-5 X-20 Y-20 F{speed_travel} ;move Z up a bit and retract filament even more
G28 ;move to endstop
M84 ;steppers off
G90 ;absolute positioning

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TMC2100 Stepper drivers with anycubic kossel

by ricki_s

Hi, has anyone tried the kossel with this driver? Is it possible? I'm looking to upgrade to them as the reviews say they're quiter bit was looking for any experience with them before I go forward. There's a seller on aliexpress that is selling these. Apologies if this has been asked before b

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New Anycubic Kossel Firmware

by pache11

Has anyone loaded the new beta firmware for their kossel? For the linear plus it is:

It looks like it was released this year.

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Drv8825 stepper drivers on Marlin 1.1.9

by MrMilan

Hi all, I'm replacing my A4498s with DRV8825s, and I know you have to double the steps. I'm not used to Delta configured firmware, so what is the correct parameter to get them working? TIA

drv8825 marlin_firmware
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Multiple Issues (measurements, preset temps, behaviour)

by dhamokk

Ok, so I got myself a Kossel (edit\ Linear + //edit)last years christmas and it prints pretty nice, some ghosting behind corners yes, but prints are pretty clean, I've seen way worse prints by other printers. Printed Benchys and 2x2x2 cubes and it was fine... as long as you don't need made to measurement parts.

A colleague asked me to print a part for a prop (he's a Star Wars fan, thing https://www.thingiverse.com/thing:3004404 ) which was too big for his printer. It looked well after printing over night, I gave it to him at work and a couple of days later he claimed, it wouldn't fit, no details. I didn't pay much attention to that, continued printing other stuff for myself, upgrades for my printer like hardened corners, parts for an encasement, etc, all was fitting more or less OK, some rasping here, some squeezing there, but not too much to think there could be a general problem.

Lastly I printed a case for a scalpel, with place for replacement blades and two handles and it came out too small: It should have 200mm in length, but it only had 197mm!

I thought the most logic would be, that the diagonal rods are shorter than specified in firmware, that's why the printers calculations on where the nozzle actually is, is wrong, increasing with the size of the object -> the further away from the center, the more inaccurate the position. So I did the following: I measured the diagonal rods and they are indeed shorter (267mm) as the value stored in the firmware (271.5), so I changed the value to the new ones, flashed, leveled the printer and printed a selfmade test, 140x90mm. The height of the print is the same over every spot of the print so the leveling worked just as it should. But in length it only was 138.2 and 89mm in width.

And here my knowledge ends, what else could be wrong? Steps per mm?

Maybe good to know: I changed the stepper drivers to TMC2208 (in firmware as standalone), reference voltage 0.9V so I don't think I lose steps here, the belts are not worn out and tightened with the original spring tightener. I also lube the smooth rod and moving parts with oil every now and then. Marlin version 1.1.9
I didn't touch the other delta values.

That was the main issue I got with this printer, now to the minor ones:

Another problem is the behaviour of the printer, if (and only then!) I change values like temperature or speed midprinting. The changes I make are working, that's not the matter (e.g. setting a higher temperature or speed resulting in a higher temperature and different speed) BUT: At the end of the print, the printer seems to have forgotten that he's a delta printer and tries to home Y first instead of rising all axis simultaneous, resulting in crashing the hotend into the belt! If I don't touch anything, it does as it should. How do I solve this?

And the third one: I've already found the entry in the language file and changed the text from ABS to PETG, because I won't ever print ABS, but most times PETG and sometimes PLA. I also changed the PREHEAT_2_TEMP_xxx in configuration.h to PETG suitable values, but when I choose preheat PETG in the printer menu, it uses the old ABS values (240°C Hotend and 100°C bed) instead of my setting (220°C and 65°C). Why is that?

Lando Calrissian's Custom SE-14 Blaster (from Solo: A Star Wars Movie).
by mrfochs
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