brmlab project:reprap

3d printing cookbook

Anonymous (anonymous@undisclosed.example.com) — 2019-08-08T06:55:37+00:00

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	* do not leave few cm of filament in printer, install new filament		* do not leave few cm of filament in printer, install new filament
	* if it broke or you broke it - nevermind, * * * * happens. Report it and leave a note on printer		* if it broke or you broke it - nevermind, * * * * happens. Report it and leave a note on printer
-	* dont forget to weight extruded plastic and pay for it (2 CZK/g if you´re member, 5 CZK/g for non-member)	+	<del> * dont forget to weight extruded plastic and pay for it (2 CZK/g if you´re member, 5 CZK/g for non-member)</del>

	==== Bed preparation ====		==== Bed preparation ====

Debugging guide for 3D printing

Anonymous (anonymous@undisclosed.example.com) — 2015-11-12T09:41:47+00:00

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	+	===== Debugging guide for 3D printing =====
	+	usual problems with printing and their debugging procedure will be posted here..

	+	==== clogged extruder ====
	+	* bad Z axis setting on start (you see path through glue layer but no filament)
	+	* bad temperature/print speed - no visible problems on model, just after few minutes filament stops to go out. This condition can also be caused by bad pressure setting on extruder head
	+	* bad extrusion mutliplier/filament settings - in this case "too much" - you see that as you get to higher layers in printing extruder is "digging" into the extruded object instead of only "gliding" few hundreds nm above surface, you also cannot distinguish when printer starts new layer, on model you see that perimeters doesn't look nice and they're rough
	+	* bad printer condition - last time when I was searching for cause it was loose extruder (worn groovemount) - see
	+
	+	==== Debugging tips [CZ] ====
	+	* Vypadlé kroky: pokud se z reprapu ozvou drnčivé zvuky a začne to pokládat plast viditelně jinam než má, klikněte na ''Pause'' pak na ikonky s domečkem a písmenkama X a Y. Reprap se 'najde' a po kliknutí na ''Resume'' bude tisknout kam má.
	+
	+	* Zaseklé vlákno: pokud se během tisku zasekne vlákno, podávací mechanismus v něm vybrousí žlábek. Je potřeba reversem vlákno vyndat, ustřihnout (kolmo!) vybrousenou část a znovu zavést. Pokud není střih rovný, vlákno po třech centimetrech vyjede z mechanismu a bude potřeba proces zopakovat. Pokud se zasekne po zhruba pěti-šesti centimetrech (a teplota hotendu je dostatečná), bude potřeba extruder vyčistit. Proti brouseni zlabku by melo pomoci poladit pritlak na filament. Povolte nebo pritahnete sroubky u pritlacneho loziska (horni cast extruderu)
	+
	+	* Ucpaný extruder: http://bukobot.com/nozzle-cleaning
	+
	+	* Problémy s heatbedem: Na heatbedu je sklo, na skle tenká vrstva lepidla na papír. Optimálně tak tenká, že skoro není vidět. Pokud máte pocit, že místy nános chybí tak přetáhněte celé sklo mokrou houbičkou, nenanášejte tam nové lepidlo.
	+
	+	==== worn groovemount story ====
	+	[[project:reprap:drevena\|Drevena]] printer started to be unreliable at some point, printed objects look like mess (see first img), extruder clogged pretty often, Z-axis calibration was pretty tricky.
	+
	+	{{:project:reprap:badone.jpg?200\|Print with worn groovemount}}
	+
	+
	+	Long story short - the problem was that groovemount couldn't resist pressure from heatsing (filament backpressure) and started to bend after few minutes of printing. Nozzle was then trying to extrude into already extruded layers. [[user:yan]] and [[user:pborky]] substituted plastic groovemount with metal sandwich, than printing result was better but not excellent. The reason was loose Y axis.
	+
	+	{{:project:reprap:groovemountfixed.jpg?200\|}}
	+	{{:project:reprap:unfixedaxis.jpg?200\|}}
	+
	+	==== bed story ====
	+	I knew something was wrong, but i could not understand the clue that printer gave me. The clue was narrow parts on printed model (you should clearly see it on zoomed image).
	+
	+	{{:project:reprap:unfixedaxis._redcircle.jpg?200\|}}
	+
	+	As is mentioned in [[project:reprap:debug#worn groovemount story]] the problem was in loose Y (front-back) axis (thx. 2 [[user:axtheb]] for solving the mystery). Problem was in loose screws between axis belt and bed. After this was fixed, wooden was reliable once more.
	+
	+	{{:project:reprap:finalniceprint.jpg?200\|}}

Drevena REPRAP printer

Anonymous (anonymous@undisclosed.example.com) — 2017-06-10T09:00:00+00:00

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	\|fix Z axis endstop\|replace glue\|hackit!\|		\|fix Z axis endstop\|replace glue\|hackit!\|
	\|fix Y axis endstop\|replace silicon with holder\|hackit!\|		\|fix Y axis endstop\|replace silicon with holder\|hackit!\|
-	\|fix X axis endstop\|create end pad on extruder, move endstop to propper distance. (and fix wires...!!)\|hackit!\|	+	\|fix X axis endstop\|create end pad on extruder, move endstop to propper distance. (and fix wires…!!)\|hackit!\|
-	\|identify account management\|Find logins and other acces codes to octoprint :D\|hackit!\|	+	\|identify account management\|Find logins and other acces codes to octoprint :D\|hackit!\|
		+
		+	\\
		+

	Drevena means "wooden" in czech. It's name came from main frame of the printer which is wooden. Drevena is located in HWlab on table which is smooth and stable. It's main advatage is in bigger bed compared to usual printers. After fixing few minor isues (tighten few screws, change worn groovemount by metal part) it gives nice print results.		Drevena means "wooden" in czech. It's name came from main frame of the printer which is wooden. Drevena is located in HWlab on table which is smooth and stable. It's main advatage is in bigger bed compared to usual printers. After fixing few minor isues (tighten few screws, change worn groovemount by metal part) it gives nice print results.

How to start 3D printing in Brmlab

Anonymous (anonymous@undisclosed.example.com) — 2023-06-18T14:12:20+00:00

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	===== How to start 3D printing in Brmlab =====		===== How to start 3D printing in Brmlab =====
		+
		+	<note warning>XXX this guide is heavily outdated, we now have 3 creality 3D printers, default workflow with cura slicer should be OK </note>

	==== brmlab-independent preparation (creating GCODE) ====		==== brmlab-independent preparation (creating GCODE) ====

Prusa i3 MK2

Anonymous (anonymous@undisclosed.example.com) — 2021-02-24T15:07:02+00:00

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	====== Prusa i3 MK2 ======		====== Prusa i3 MK2 ======
	=== tiskárna je u rainbofa na léčení ===		=== tiskárna je u rainbofa na léčení ===
		+	status: osa Y pofixovana, extruder nakasi
		+
		+
		+
	Aktuálně dostupné materiály (příležitostně aktualizováno):		Aktuálně dostupné materiály (příležitostně aktualizováno):
	* Modrý (průsvitně) PET		* Modrý (průsvitně) PET
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	==== Kde hledat modly ====		==== Kde hledat modly ====
		+	* jak to složit: https://prusa3d.dozuki.com/c/Jak_sestavit_Prusa_i3_MK2S
	* https://www.thingiverse.com/		* https://www.thingiverse.com/
	* https://3dwarehouse.sketchup.com/		* https://3dwarehouse.sketchup.com/

RepRap

Anonymous (anonymous@undisclosed.example.com) — 2019-03-16T13:01:21+00:00

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	{{ :project:reprap.jpg?nolink&350 \|}}		{{ :project:reprap.jpg?nolink&350 \|}}

-	If you want to start 3D printing in brmlab and have your own printing account continue to [[project:reprap:Firstime\|First Time printers HOWTO]].	+	If you want to start 3D printing in brmlab, continue to [[mk2\|Prusa MK2 subsite]] about our main, most user-friendly 3D printer.

	===== Quick redirection =====		===== Quick redirection =====
-	[[project:reprap:Firstime\|First Time printers HOWTO]]- NEWCOMERS MUST READ!!!\\	+	(most of this is obsolete with regards to our Prusa MK2.)
-	[[project:reprap:Anytime\|3d printing cookbook]] - READ IF YOU'RE OCASSIONAL USER\\	+
		+	[[project:reprap:Firstime\|First Time printers HOWTO]]\\
		+	[[project:reprap:Anytime\|3d printing cookbook]]\\
	[[project:reprap:Stlcreation\|STL acquiring/creating]]\\		[[project:reprap:Stlcreation\|STL acquiring/creating]]\\
	[[project:reprap:firstime#brmlab-independent_preparation_creating_gcode\|GCODE creation]]\\		[[project:reprap:firstime#brmlab-independent_preparation_creating_gcode\|GCODE creation]]\\

Creating / acquiring .stl and little about .gcode

Anonymous (anonymous@undisclosed.example.com) — 2016-05-14T07:46:41+00:00

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	+	===== Creating / acquiring .stl and little about .gcode =====

	+	==== STL ====
	+	For every print you need 3D model of thing you want to extrude.
	+
	+	.stl is "stereolitography file format" - more at [[https://en.wikipedia.org/wiki/STL_%28file_format%29\|wiki]] , it´s commonly recognized format for 3D models and many programs have some nice "export-to" button for creation of STL.
	+
	+	=== Getting "ready for use" .stl ===
	+	I know only about [[http://www.thingiverse.com/\|thingiverse]] , probably more similar pages exist, if you find some nice page and want to share it feel free to post it here.
	+
	+	== Zjednodušení STL [CZ] ==
	+	Některá STL z Thingiverse jsou ohromná a příliš detailní (řádově 100 MB), takže skeinforge naalokuje veškerou dostupnou paměť a spadne.
	+
	+	* Stáhněte si [[http://meshlab.sourceforge.net/\|MeshLab]] (např. v Debianu je v repu)
	+	* Otevřete STL
	+	* Filters → Remeshing → Quadratic Edge Collapse Decimation
	+	* Percentage reduction - dobré je začít třeba s 0.1
	+	* Apply
	+	* File → Export Mesh As, STL
	+
	+	=== Creating your own .stl [CZ] ===
	+	Pro technické typy je zajímavý software [[http://www.openscad.org/\|openscad]] tím, že je to jenom kompiler relativně jednoduchého kódu, další často používaný soft je [[http://www.artofillusion.org/\|Art of Ilusion]] nebo googlí Sketchup
	+
	+	Výsledkem modelovací fáze by měl být soubor ve formátu STL, v tuto chvíli je maximální rozměr objektu 20x20x17 centimetrů pro Žlutou a 30x20x27 pro Dřevěnou.
	+
	+	== OpenSCAD ==
	+	Ubuntu: # add-apt-repository ppa:chrysn/openscad && apt-get update && apt-get install openscad
	+
	+	* [[http://openscad.org/#download\|OpenSCAD manual installation and tutorials]]
	+	* [[http://en.wikibooks.org/wiki/OpenSCAD_User_Manual\|OpenSCAD @ WikiBooks]]
	+
	+	== Freecad ==
	+	Freecad je free/open modelovací software, vhodný pro ty, kterým je OpenSCAD málo visuální. Je aktivně vyvíjen, pro Ubuntu je ppa tady:
	+	https://launchpad.net/~freecad-maintainers/+archive/ubuntu/freecad-stable
	+	* [[http://www.freecadweb.org/wiki/index.php?title=Category:Tutorials\| stránka tutoriály na wiki freecadu]]
	+	* [[http://hackaday.com/2014/02/05/3d-printering-making-a-thing-in-freecad-part-i/\|Velmi dobrý tutoriál pro úplné začátečníky]]
	+
	+	Freecad plugins & misc
	+	Několik šikovných odkazů
	+	* [[https://github.com/shaise/FreeCAD_FastenersWB \| Je libo šroubky?]]
	+	* [[https://www.youtube.com/watch?v=wHxTWuDhc3M \| DXF, DWG import]]
	+	* [[https://www.youtube.com/watch?v=a_sVxefEnEg \| Ozubená kola]]
	+
	+	== Blender ==
	+	Univerzální free nástroj pro tvorbu 3d modelů/filmů, dostupný v mnoha linuxových distribucích (i na win), mnoho tutoriálových stránek:
	+	https://www.blender.org/
	+	* [[http://wiki.blender.org/index.php/Doc:2.4/Books/Blender_Precision_Modelling_Guide\| šikovná knížka pro studium přesného modelování v blenderu]]
	+
	+	== 3DsMax ==
	+	Velmi jednoduchý a velmi placený software pro tvorbu 3D.
	+
	+	== SolidWorks ==
	+	Velmi účinný a velmi placený software především aplikován v CNC.
	+
	+	* [[https://www.youtube.com/watch?v=DgyrGsAdUPE \| video pro představu]]
	+
	+	== a mnoho dalších.. ==
	+
	+	==== GCODE ====
	+	From universal 3D model you need to generate commands to printer like "move here" and "extrude with this speed" etc, this "dirty job" is nicely automatized with programs like free [[https://www.slic3r.org \|slic3r]] or f. e. paid [[https://www.simplify3d.com/ \| simplify3d]] , from those program you obtain printer-dependent .gcode file which you could directly upload to printer.

Temperature Setting

Anonymous (anonymous@undisclosed.example.com) — 2015-11-01T09:21:34+00:00

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	+	===== Temperature Setting ======
	+	Setting correct temperature is crucial for nice output and smooth operation of printer.

	+	factors which can affect correct temperature are:
	+	* extruder (manufacturer)
	+	* filament type (ABS, PLA, PET..) and diameter (1.75/3 mm)
	+	* manufacturer
	+	* color of filament (sometimes different color of one manufacturer may vary)
	+
	+	As a good "first shot" setting temperature to filament manufacturer prescribed value is not a bad idea. I ussualy start with values published by Prusa [[http://www.prusa3d.cz/materialy/ \| here]] , except highest temperature which i ussualy dont set extruder temperature above 260 °C cause of construction limitation of our reprap printers.
	+
	+	Feel free to vary temperature if first time you don't get ideal result, experimental data is crutial!
	+
	+	=== malfunctioning affected by temperature ===
	+	low bed temperature -> model doesn't stick on bed, can be caused also by bad bed preparation or bad Z-axis calibration
	+	filament jamming (brushed from extruder drive) -> can be caused by low temperature, but also by speed of printing or it could be caused by filament quality
	+
	+	===== confirmed experimental settings =====
	+	Drevena - PLA - bed 55 °C, extruder - 190+ °C - used on transparent red and non-transparent black PLA, both with sucess, lower bed temperature may result into problems with adhesion of filament to bed.

Zluta REPRAP printer

Anonymous (anonymous@undisclosed.example.com) — 2016-06-01T12:24:59+00:00

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	+	===== Zluta REPRAP printer =====
	+	Zluta means "yellow" in czech. Few basic parts of printer is printed from yellow filament. Zluta is located in HWlab on relatively smooth and stable table. It is not as big as drevena printer, but it gave me nice print results all the times.

	+	=== Control board Specification ===
	+	* Main board - ATmega ???
	+	* printer shield - unknown
	+	* controlled by RPI w Octoprint
	+
	+	=== HW specification ===
	+	* usable XY size 200 x 200 mm
	+	* extruder - [[http://reprap.org/wiki/Genealogy_/_Archeology_of_the_Greg's_Wade's_Geared_Extruder#5th_Gen:_Greg.27s_Wade_reloaded\|Probably greg wade reloader]]
	+	* hotend - some [[http://www.ebay.com/itm/E3D-V6-Metal-Nozzle-J-head-Extruder-Kit-Long-Distance-for-3D-printer-with-wire-/231688956342\|China clone E3D-V6]]
	+
	+	=== Octoprint customization ===
	+	* [[https://github.com/imrahil/OctoPrint-PrintHistory/ \| printhistory plugin installed]]
	+	* deleted delete function from history (commented lines in this file : [[https://github.com/imrahil/OctoPrint-PrintHistory/blob/master/octoprint_printhistory/templates/printhistory_tab.jinja2\|printhistory_tab.jinja2]] )
	+	<code>
	+	~/octoprint_installationcrap/OctoPrint/venv/lib/python2.7/site-packages/octoprint_printhistory/templates
	+	</code>
	+
	+	==== Debug Log ====
	+	2016 - 06 - 01 - after Ray's nice fix of cables, fixing of leaking nozzle etc - problems with extruder
	+	Improved current throughput from ~1A to ~1.5A (U from ref. 0.33 -> 0.55)

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	\|fix Z axis endstop\|replace glue\|hackit!\|		\|fix Z axis endstop\|replace glue\|hackit!\|
	\|fix Y axis endstop\|replace silicon with holder\|hackit!\|		\|fix Y axis endstop\|replace silicon with holder\|hackit!\|
-	\|fix X axis endstop\|create end pad on extruder, move endstop to propper distance. (and fix wires...!!)\|hackit!\|	+	\|fix X axis endstop\|create end pad on extruder, move endstop to propper distance. (and fix wires…!!)\|hackit!\|
-	\|identify account management\|Find logins and other acces codes to octoprint :D\|hackit!\|	+	\|identify account management\|Find logins and other acces codes to octoprint :D\|hackit!\|
		+
		+	\\
		+

	Drevena means "wooden" in czech. It's name came from main frame of the printer which is wooden. Drevena is located in HWlab on table which is smooth and stable. It's main advatage is in bigger bed compared to usual printers. After fixing few minor isues (tighten few screws, change worn groovemount by metal part) it gives nice print results.		Drevena means "wooden" in czech. It's name came from main frame of the printer which is wooden. Drevena is located in HWlab on table which is smooth and stable. It's main advatage is in bigger bed compared to usual printers. After fixing few minor isues (tighten few screws, change worn groovemount by metal part) it gives nice print results.

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	{{ :project:reprap.jpg?nolink&350 \|}}		{{ :project:reprap.jpg?nolink&350 \|}}

-	If you want to start 3D printing in brmlab and have your own printing account continue to [[project:reprap:Firstime\|First Time printers HOWTO]].	+	If you want to start 3D printing in brmlab, continue to [[mk2\|Prusa MK2 subsite]] about our main, most user-friendly 3D printer.

	===== Quick redirection =====		===== Quick redirection =====
-	[[project:reprap:Firstime\|First Time printers HOWTO]]- NEWCOMERS MUST READ!!!\\	+	(most of this is obsolete with regards to our Prusa MK2.)
-	[[project:reprap:Anytime\|3d printing cookbook]] - READ IF YOU'RE OCASSIONAL USER\\	+
		+	[[project:reprap:Firstime\|First Time printers HOWTO]]\\
		+	[[project:reprap:Anytime\|3d printing cookbook]]\\
	[[project:reprap:Stlcreation\|STL acquiring/creating]]\\		[[project:reprap:Stlcreation\|STL acquiring/creating]]\\
	[[project:reprap:firstime#brmlab-independent_preparation_creating_gcode\|GCODE creation]]\\		[[project:reprap:firstime#brmlab-independent_preparation_creating_gcode\|GCODE creation]]\\