xavier

Hi, I am looking for the specific reference of the 6,8,12mm metal shafts used in the Ultimaker, to replace them with longer ones for a larger version of the printer. I already have some but the diameter accuracy is too average and the metal is not hard enough. I struggle to find accurate informations about what is needed exactly. The problem being that in the lengths needed (between 50 - 60 cm) I can't find it on 3D printer's dedicated website and have to order directly from industrial specialists like Misumi. Material : High-Carbon Steel ? Finish : Chrome ? Nickel ? Hardness : 58-62 HRC or more ? Diameter accuracy : h5, h6, h8 ? Anybody has an idea ?

Works well now !

sorry it's 44 x 44 x 43 cm for those who are interested in the forthcoming plans.

Everything works now: - Uncommenting "//#define ULTIMAKERCONTROLLER //as available from the ultimaker online store." solved the problem of yellow brick lines. - I managed to upload the modified firmware from Arduino last night and Ginge's Marlin Builder this morning, both works good on the machine. - At the moment Cura works on my Mac OSX with a 13.03 version, it just doesn't recognize the SD card. I consider everything solved, thank you everybody for your help. I just have now to finish to improve the mecanics of the machine to get a good 43 x 43 x 42 cm 3D printer (last tested max printing size). Images in my gallery in september ! (after few holidays)

The firmware works on my machine with a print platform of 44 x 44 x 43 cm, when using experimental templates.

Ok, still in troubles, here is where I am : 1. Tried from EricZalm AND then Daid's versions of Marlin and used Arduino 0023 2. Managed to open Marlin.pde in Arduino to make the "Configuration.h" modifications (print platform 405x405x400) which could be done also in text-edit. 3. Got everything Compiled and Uploaded to the Motherboard (Arduino Mega 2560) 4. It uploads fine but seems incompatible with the UltiController as the LCD display shows lines of block squares. 5. Tried to get an .hex to be uploaded through Cura (install custom firmware) by following this : http://www.extrudable.me/2013/05/03/building-marlin-from-scratch/ - changed the lines in indicated in the Makefile in text-edit and then got lost on "choosing the right path" section of the blog as nothing described works on my "Terminal" panel... 6. And still can't manage the last version of Cura to process slicing since three days whereas it was perfectly working before...

Ah Ok ! It helps, couldn't realise this is a question of vocabulary : "it's not an Ultimaker anymore" ! Configuring it as a RepRap does change things on Cura ! But now I have to compile the .hex file myself without the marlin builder from robotfuzz which doesn't really change the platform size (check the Configuration.h), and I don't get anything with Arduino (why can't I open anything from the multiple Marlin files ?).

Hi Ginge, I used your marlin builder, nice easy tool, but just one thing : while it seems you can set the printing platform size with "Software Endstops" "X, Y, Z", afit ter verification doesn't change anything in the "Configuration.h" file which still write the default Ultimaker print platform values : // Travel limits after homing #define X_MAX_POS 205 #define X_MIN_POS 0 #define Y_MAX_POS 205 #define Y_MIN_POS 0 #define Z_MAX_POS 200 #define Z_MIN_POS 0 I mean, I tried to use it to configure an extended print platform version of my Ultimaker without having to run through Arduino (which I don't understand).

Thanks for the Marlin Builder link, seems magic ! But... I did it, got the .hex file, uploaded it the Ultimaker through Cura ("upload custom firmware"), got this done : - Move X, Y, Z axes on the UltiController (prepare>move axes) but still were limited to 205 x 205 x 200 - Changed the bed size in Cura Preferences (as I already did several times) to 405 x 405 x 400 with no trouble (even though the grey bed head marked "Ultimaker" now fit in the middle of the printing stage) but couldn't process the Gcode of the big simple object I had just opened... thought this might be another issue common those days with Mac users... Still I can't have any Gcode big enough at hand to make straight real test. - So I did a "first run wisard" process test (without replacing my custom firmware), which ended up as usual with a 200 x 200 mm extruder/bed level test square... (and not a 405 x 405 as written in the firmware). - Finishing this, closed the window to return on Cura printing scene : the bed stage had disappeared for a plain continuous grey window. So, I import a new object: the normal 205 x 205 bed stage reappeared with my new imported object outside the scene and the previous one, off the print bed. Verification : the Preference menu came back by itself to 205 x 205 x 200. Then try to close Cura : crash. That's it...

Salut Simon, Le Spare Hot End V2 n'est pas nécessaire, il est déjà intégré dans la nouvelle version du pack Ultimaker. Par contre l'Ulticontroller est très utile. Les outils dont tu disposes te seront surement très utile pour aller plus loin en qualité d'impression et peut-être construire la machine dont tu as besoin en améliorant rendement et précision. Sinon en ce qui concerne le PLA je te conseil Colorfab ! Pour ma part je réalises qu'une grande partie de la question est aussi très mécanique : si le principe de l'impression 3D additive est simple, toute la différence réside manifestement dans le rapport entre la qualité des matériaux de construction utilisés et la précision de leur mise en oeuvre. Pour ça l'Ultimaker est plutôt un bon départ puisqu'elle réalise des prouesses au vue de la pauvreté des matériaux utilisés (contre plaqué de bouleau, courroie synchrone la plus simple,visse trapézoidale sans billes, des roulements uniquement là où c'est indispensable... Tout est optimisé et mis à contribution dans le réglage, même la molesse du contre-plaqué de bouleau. Tout est donc fait intelligemment et avec économie. Un bon outil pour apprendre de l'intérieur. Personnellement c'est dans cette optique que je m'y suis lancé, pour comprendre et construire mes propres outils. Par ailleurs ton expertise m'intéresses étant donné que je suis en train de construire une version plus grande de l'Ultimaker, si les problèmes mécaniques sont nombreux je vois clairement les solutions (qui requièrent parfois un degré de précision qui demande d'autres outils). par contre c'est du côté adaptation logiciel que je pèche totalement... Bon montage ! Xavier

Hi all, I have built an enlarged version of the Ultimaker (44x44x44cm), that need hardware improvement but at least is roughly working. My main problem being : how can I tell it not to print only in the 20x20cm left corner...? I am quite bad at programming and better for hardware things, so apologies for my dumbness but here is what I did so far to try to sort this out : - I have Downloaded the regular version of Marlin for Ultimaker on Github - Opened "Configuration.h" in text edit (as I couldn't find the way how to use Console, Control panel or Arduino) - Changed this : // Travel limits after homing #define X_MAX_POS 405 #define X_MIN_POS 0 #define Y_MAX_POS 405 #define Y_MIN_POS 0 #define Z_MAX_POS 400 #define Z_MIN_POS 0 - and also this as I am using 2mm steps GT2 belt (advised from a previous post on GT2 Belts) #define DEFAULT_AXIS_STEPS_PER_UNIT {80,80,200*8/3,760*1.1} Then... -Is it enough ? - Now how can I compile this to get an .hex file to load in the Ultimaker ? I'm sorry but I don't get it when I read this posts : http://www.extrudable.me/2013/05/03/building-marlin-from-scratch/ https://github.com/Ultimaker/Marlin And... - What about Cura now ? Last time I tried to extended the printing platform in the preferences, it crashes severely...

Weird, it just happened to me also. Everyhtnig was working fine since june and now it doesn't slice at all anymore, the autoslice-save button is always grey... what should be done in the end ?