3D Printers. Who's got one?

Discussion in 'Shiny Things' started by dorkpunch, Jan 8, 2013.

  1. Carlo Muro

    Carlo Muro SupercĂ zzola

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    this thread needs merged into The Thread of Awesome. No, got that wrong, this IS the The Thread of Awesome! :lol3

    :clap
  2. garandman

    garandman Wandering Minstrel

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    We have a very expensive (but effective) commercial system that smooths parts.

    We also bought one of these on Kickstarter to see how it works.

    http://www.kickstarter.com/projects/1809448130/3d-refiner-by-3dprintsexpresscom
  3. Kokopelli

    Kokopelli Yeah, right!

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    That's pretty impressive work. I like your car project and how you are going to print the class' work.

    We've ended up buying a printer and are currently getting to know it. It prints on a perforated surface. Initially we had problems with the base of a model curling up, but traced that to a misaligned platform. Now all seems to be well.

    I won't use ours for class projects. Some of my seniors are likely to print components for their individual projects should the need arise.

    Keep up the good work. You've certainly got the hooked.

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  4. dorkpunch

    dorkpunch Oops...

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    Printed 100 wheels off today... Looks like I finally got my bed pretty darn level.

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    Pile of wheels and my sample with 'em glued on.

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    Starting the printer unit with my 8th graders, so hopefully bigger and more-better-er things to come.
  5. garandman

    garandman Wandering Minstrel

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    What did you get?
  6. Kokopelli

    Kokopelli Yeah, right!

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  7. dorkpunch

    dorkpunch Oops...

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    Tech 2's practice project, first batch.

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    They drew them up, exported the .stl, repaired it in Netfabb, and a few of them played a bit with Repetier. Couldn't get it to install on all of the computers though so we loaded them all in one file to generate the code.

    Any good suggestions for a "big" project for grade 8's? They don't have a ton of Sketchup experience but I'd like something that will stretch 'em a bit. Current plan is they will have to design some mechanical part that is made up of at least three seperate printed parts that fit together (can use nuts/bolts/etc) and does "something". :lol3
  8. Kokopelli

    Kokopelli Yeah, right!

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    How about a plastic hinge? You could then use it on something.
  9. Jonnylotto

    Jonnylotto All out of care

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    Have them design a bridge that can hold a one pound weight.
  10. Big Bird 928

    Big Bird 928 Long timer

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    That is an awesome idea!
  11. potatoho

    potatoho Cheese and Rice!

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    I've been running a Lulzbot AO-101 for a couple of weeks. I've found that the Slic3r which is included with Pronterface is kinda old and shitty compared to the latest & greatest. Mine was 0.7.1 versus the 0.9.9 I downloaded.

    The 0.7.1 was not very good at overhangs and bridges, not very good at all. I use the 0.9.9 to create gcode now.
  12. potatoho

    potatoho Cheese and Rice!

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  13. garandman

    garandman Wandering Minstrel

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  14. dorkpunch

    dorkpunch Oops...

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    Yeahbut, I'm a teacher so it kind of goes with the territory. :D
  15. dorkpunch

    dorkpunch Oops...

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    Finished gluing wheels on today.

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    Some of them followed the instructions great, a few didn't and their wheels didn't fit in the wheel wells... Mostly they turned out pretty good!
  16. type2meister

    type2meister Adventurer

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    Great thread! I'm a grade 9-12 shop teacher (woodwork, drafting)...I'm looking into 3d printers right now and what I see here is totally inspiring! Thanks.
  17. troidus

    troidus Long timer

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    Download and have them play with the West Point Bridge Designer, then scale down and print their designs on the printer. They'll be able to observe firsthand the difference between tension and compression loads on long thin structural elements.

    http://bridgecontest.usma.edu/download.htm

    OK, you did say three parts, not a jillion, but it could still be a cool exercise.
  18. dorkpunch

    dorkpunch Oops...

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    I've used West Point before, and we built bridges base on their designs out of toothpics. They held WAY more than a pound though, so I'm betting a printed one could be way strong. Have to keep that in mind- would be nice to incorporate the printer into as many different units as possible!

    I gave them some real basic guidelines- must have at least 3 different parts, one of which must "move". So far we have 3 Ipone / Ipod cases, a pair of glasses, a boat anchor and winch, 2 lego people, a folding lawn chair, and an airplane. :huh This oughta be interesting...

    Potatoho- cool link on the plastic extruder. Would be way awesome to be able to chuck a bunch of old pop bottles in there and "recycle" them into prints!!!

    AND- yes, the newer versions of Slic3r are a must have... Took me a while to figure that out. I really like Repetier over Pronterface- sooo many more nice features- you can see the simulated prints layer by layer in 3D from any angle, and it gives you a ton more info than Pronterface.

    ANYWAYS- Downloaded and printed my first "thingy". Noticed my extruder idler was cracking!

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    It was still working, but occasionally the filament would slip and the print would skip. Downloaded and printed the Birdstruder- quick change capable.

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    Assembly:

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    Latched,

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    Open:

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    Installed, tested, and working!

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    Pretty happy with it so far, seems to be much better designed and I love the tool-less filament change now. Took a tad bit of dremel-ing to get things to fit perfect but overall it was pretty darn close.
  19. dorkpunch

    dorkpunch Oops...

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    First couple of projects off the printer! Keep in mind, these were designed by 8th graders and we are at the end of the year so it was a bit of a rush project...

    First project- spin table. No idea what he's going to use it for. His little wheels didn't work out too well so I gave him some old bicycle wheel bearings and the things spins like, well, a top. :deal

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    Short vid...

    <iframe width="560" height="315" src="http://www.youtube.com/embed/63vsC_80jtg" frameborder="0" allowfullscreen></iframe>
  20. dorkpunch

    dorkpunch Oops...

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    Next project: An airplane!





    Was having some printer issues which turned out to be a loose wire on the extruder thermistor... Had to start it over a time or two.

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