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conz

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Posts posted by conz

  1. I just needed to print this as lover of Sim City and Sim City 2000. Such sweet times with those games :D

     

    Very nice. Is it printed in one piece, or multiple parts?

    Do you have some structures to connect/adjust them? (In case of multiple parts)

     

  2. Cor3ys, I'm impressed by the quality of the surface, too. Nice coating. It comes close to the version by Adam Savage, and that one has real chromium coating. (I didn't know, that it is possible to chrome plastic until this video)

     

    The video is a nice reference.

     

  3. For recycling I wouldn't argue only with the price of raw material. IMHO it could be cheaper to recycle the material. With 3D printing you get a lot of waste (test objects, support material, failed prints ...). The wasted material is clean and in high quality.

    One advantage of additive manufacturing is, that there shouldn't be that huge amount of wasted material.

    I'm astounded how much wasted material my printer is producing. It annoyes me to dump that material.

    As a producer of an extruder, I would argue with the advantages of recycling printed objects. But there has to be a tested workflow for this.

     

  4. I have observed the same behaviour. Single lines on the clean, nice surface made by these pathes/movement.

    Retraction is on. But it seems, that cura is not adding a retraction command before these pathes. (I have not looked in the gcode). I got some material on the infill, too, on these movements. It looks really like there is some extrusion of material at the time of the movement. (Looks like a bug)

    Maybe as a workaround there could be an option for lifting the head on pathes over finished surfaces (if it's on the same layer)

    Sometimes the path could be more optimized to take the shortest line over a finished surface.

    EDIT:

    Some sample image with material over infill. Seems the same problem.

    Material On MovePath

    It doesn't look like smearing, it looks like added material on the movement to the new printing position.

    EDIT2: Combing and retraction are on for this print.

     

  5. Tim here, from Filastruder.

     

    Hi Tim,

    thank you for your posting.

    - Do you have tested to recycle printed objects (PLA)?

    - A diameter of 2.9mm sounds good. The Ultimaker 2 will need filament smaller than 3mm.

    2.85mm +/- 0.1mm would be perfect.

     

  6. About bigger dirt particles:

    The Filastruder has a "Melt filter", a 250 micron wire mesh filter.

    I have tested this final revision for over 100 hours of extrusion, with no measurable decline in output rate.

    Because the local velocity of the polymer at the screen pack is so low, output rate is not diminished until the filter is nearly full of contaminants.

    https://www.kickstarter.com/projects/833191773/filastruder-a-robust-inexpensive-filament-extruder/posts/595647

    Sounds good.

    Some nice testimonials:

    http://www.filastruder.com/pages/testimonials

    hmm ... $300 for the filastruder kit.

    http://www.filastruder.com/products/filastruder-kit

    But they have only a 3.0mm nozzle, with +/- 0.1mm. That would be to thick for UM2. :(

    A few beta testers have set the FIlastruder up for 3.0mm filament, and report variances of about +/-0.10mm.

    That's bad. :(

     

  7. If the objects are clean, than there should be not that much dirt. I would maybe shredder them with a blender by Blendtec ( https://www.youtube.com/results?search_query=will+it+blend

    )

    And mixing it up with new PLA pellets (only 10% of the price of filament) should be no problem, too.

    I'm not that afraid about a little bit of dirt in the filament. After printing with woodfill, I think that particles in the filament are not that problematic with a 0.4mm nozzle. IMHO it could be more problematic with a smaller nozzle.

    (EDIT: lost a part by inserting the link)

     

  8. Hi,

    is there a good possibility to recycle my test prints?

    There are some successfully founded machines on kickstarter to extrude your own filament.

    Someone here have tested one of these?

    I'm a little bit skeptical about the tolerances of the resulting filament.

    The option to extrude filament out of much cheaper pellets seems nice. To recycle my failed prints or the ones for testing would be a big advantage, too.

    Maybe it's a little bit problematic to shredder the old objects without heating them up to much. (Will it blend? ;) )

    Some of the founded extruders on kickstarter:

    filastruder - I like the video :) :

     

    ExtrusionBot (impressive extrusion speed) :

     

    Filabot (has a simple shredder, IMHO to weak for objects) :

    Two others are Filafab and STRUdittle:

     

     

    Is there one I can buy already?

    What do you think about producing your own filament?

     

  9. I have had the same problem with

    - new UM2

    - Ultimate PLA blue

    I have had a lot of support structures made with meshmixer. The result has a lot of small columns. There you print only a small spot for every column (0.8 - 1.2mm in diameter) with retraction after every column.

    There I have had the jamming with filament looking as the one by AxelEriksson. It jammed more than once at around the same hight.

    Tried a little bit with different retraction length, but the final workaround was to reduce the amount of support structures.

    After that I was able to print that part.

    I'm not sure what parameters to set, to print objects with a lot of support with meshmixer. Some ideas?

    Sample images of these support structures:

    http://umforum.ultimaker.com/index.php?/gallery/image/5055-tank01/

    http://umforum.ultimaker.com/index.php?/gallery/image/5053-tank03/

     

  10. My latest print is a wooden mask (Model by Michalis on BlenderArtists [1])

    Mask26

    First time that I have printed with a different material than PLA Ultimate blue. I was to curious to test the woodfill by colorFabb.

    I have found this nice rendering by Michalis on BlenderArtists and I thought that it would fit perfect for a woodfill print. I really like his artwork.

    Mask01

    (Sculpted in Blender and rendered with Cycles by Michalis)

    [OT: Blender has some good sculpting tools, too. Incl. dynamic topology.]

    At first I have printed a small version with Ultimate blue PLA to test the model and painted it with white primer.

    Mask11

    Then I have loaded the colorFabb woodfill (fine) and started a bigger print:

    Mask13

    The woodfill is a difficult material to print. I have had some jamming and clogging. Don't print to hot, over 210°C the material will turn into charcoal. You have to avoid that the material will stay to long in the heated nozzle.

    For a good print I have had to increase the "material flow" to at least 120%.

    The final print with woodfill:

    Mask16

    Mask19

    Mask21

     

    After cleaning up the model, I have used some mordant (wood stain?) to color it.

    Turned out really good. Looks like wood. :)

    Mask30

    Mask28

    Mask27

    Mask31

    Couldn't get a neutral lighting. In reality it is a combination of the red and the dark brown.

     

    That is how it looks with other wood material on my shelf, really like it:

    Mask35

    Mask34

    Way more photos in my Album:

    Mask01Mask02Mask03Mask04Mask05Mask06Mask07Mask08Mask09Mask10Mask11Mask12Mask13Mask14Mask15Mask16Mask17Mask18Mask19Mask20Mask21Mask22Mask23Mask24Mask25Mask26Mask27Mask28Mask29Mask30Mask31Mask32Mask33Mask34Mask35

    Thank you Michalis for the model.

    [1] http://blenderartists.org/forum/showthread.php?294033-Michalis-s-sketchbook

     

  11. Visited my local store for model making to buy some paint and glue. There I have showed some of my prints to explain my demand. The employee (owner?) was so excited about the possibilities, that he requested some parts for a tank he is working on and he was failing to rebuild them by himself. :)

    He ripped a new box with parts of a 1:35 tank, gave me the following three parts and said that he would need these in 1:16.

    tank05

     

    I have underestimated the amount of work to measure these parts (some strange angles and radii), but I think it worked out really well.

     

    tank12

    tank10

    tank06

    tank07

    tank08

    Modelled in FreeCAD and Blender

    Support with Meshmixer

    PLA, Ultimate Blue

    Temp 208°

    Bed: 65°

    Infill: 25%

    Speed: 40mm/s

    Layer h.: 0.1mm

    Print time: ~2h, ~4h, ~7h

    He is really happy with the result. :)

    I'm curious to see his final model.

    Some more images in my album

    tank12tank11tank10tank09tank08tank07tank06tank05tank04tank03tank02tank01

     

  12. Looks great! the support structures looked like they would have caused some issues, but it turned out just fine! I guess support is a lot more forgiving on organic structures eh?

     

    Thanx. There are some issues with the support structures, it was a lot of pain to remove it. I should have printed it with a little bit different orientation. And maybe with fewer structures.

    Main issue is the wall thickness on some spots. The whole modell needs to be printed some percent bigger to avoid these problems. Or I have to modify the modell itself.

    The paint on your walker is very impressive! I like it. :geek:

     

    All it needs is a quick wash of some brown!

     

    what do you mean by "quick wash..", is this a style/look or a technique to paint?

    Would you use some brown paint with a lot of thinner to finish it?

    It's over 20 years ago, that I have painted some D&D figures.

    Can you recommend some pages with painting tutorials/techniques for real modells?

    Like the page where you got your rust tutorial from.

     

  13. My first organic print is a scanned skull. Not my modell,

    Skull13

    Size: little bit over 2cm

    Fil.: Ultimate Blue

    Temp 202°

    Bed: 65°

    Speed: 30mm/s

    Layer h.: 0.06mm

    Printing:

    Skull03

    Finished Print:

    Skull04

    Skull05

    Support removed (kind of ... many problems there.

    I saw them later on my photos. Next time I have to check the images before the primer. :

    (Ordered a lamp with magnifying glass.)

    Skull06

     

    First layer of primer (ArmyPainter: ColorPrimer - Skeleton Bone):

     

    Skull08

    Skull09

    used my simple painting box. :)

    Skull07

     

    I have used a little bit to much primer on the face, but it was hard to get the primer in the holes (Eyes and nose)

    Result:

    Skull10

    Skull11

    Skull12

    Skull15

    I'm happy with the result, In reality it looks much better than on the makro shots. ;)

    I think I'll reprint him with a different orientation.

    More in my Gallery Album:

    Skull01Skull02Skull03Skull04Skull05Skull06Skull07Skull08Skull09Skull10Skull11Skull12Skull13Skull14Skull15Skull16

     

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