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BAFP 3D Printer

Discussion in '3D printers' started by Steven Bloom, Nov 24, 2015.

  1. Steven Bloom

    Steven Bloom Veteran
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    Steven Bloom published a new build:

    Read more about this build...
     
  2. Steven Bloom

    Steven Bloom Veteran
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    Here is a full size picture of the mock up. Things are NOT finalized with the design yet.

    BAFP3D 1.jpg
     
  3. Steven Bloom

    Steven Bloom Veteran
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    Okay, my friend Tim is slightly crazy but cool . We have just modified the design to have a build area of 600mm x 600mm x 880mm. That's big enough. Her is a new pic !!

    Printer I.png
     
  4. Steven Bloom

    Steven Bloom Veteran
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    Added the motors and the GT2 Belt Path

    Printer J.png
     
  5. Steven Bloom

    Steven Bloom Veteran
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    Ok, added the legs and stuff. Pretty much done on design for now. Hopefully we will start putting everything together next week !!!!

    Printer L.png
     
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  6. Steven Bloom

    Steven Bloom Veteran
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    Added some more support feet, Simplified belt path so we could find a closed loop GT2 belt. Moved Z motors to act as tensioners. Added box Rumba and 12864 Screen. Added Spool holders , glass bed clips and Name Plate

    Printer N.png
     
  7. Steven Bloom

    Steven Bloom Veteran
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    Added 2 Spools and 2 Bowden E3D V6 Volcano Hotends

    Printer O.png
     
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  8. Steven Bloom

    Steven Bloom Veteran
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    The construction has started. This is going to be a monster. The wood that it is sitting on is 48" square.

    pic121415.jpg
     
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  9. Mark Carew

    Mark Carew OpenBuilds Team
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    This is HUGE! @Steven Bloom Wow I think if you go taller you could print a life size person, as it is you could if they were in the sitting position :thumbsup:
    This is going to be a fun Build to follow keep up the great work.
     
  10. Steven Bloom

    Steven Bloom Veteran
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    My friend Tim said as soon as you have the beams and screws in 2meter lengths, we will upgrade !!!

    Thanks Steven
     
  11. Tim N

    Tim N Well-Known
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    We did talk about going to 1500mm tall but scraped that idea at the moment....
     
  12. JustinTime

    JustinTime Master
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    I agree, scrap that idea and go fly some quads!!! :D
     
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  13. Steven Bloom

    Steven Bloom Veteran
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    Another new pic of the build. Its looking good !!!

    pic121815.jpg
     
  14. Steven Bloom

    Steven Bloom Veteran
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    A new pic of the bottom of the printer. As you can see the 26" square glass will go right in the middle. Also the bearing supports are in for the 1 meter screws.

    IMG952940.jpg
     
  15. Val Cocora

    Val Cocora Veteran
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    why scrap the 1500 mm idea?
     

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  16. Steven Bloom

    Steven Bloom Veteran
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    Very nice. Well we are getting it together for 1 meter. We can always change out the supports to go higher. But we need it to get working first
     
  17. Val Cocora

    Val Cocora Veteran
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    for bigger dimensions you will need bigger lead screws.
    in my case, after doing some math, i decided trapezoidal metric, 16mm diameter, will do the trick.
    four of them, to be more precise. got mines from roton, 60 inch uncut, about 40 bucks a pop. the nuts are acetil, also from roton.
    anything else you can get from openbuilds for that size.
     
  18. Val Cocora

    Val Cocora Veteran
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    Steven, I am curious: why did you go with the solution of using a 3 axis extruder and a fixed platform?
     
  19. Steven Bloom

    Steven Bloom Veteran
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    Speed. We will have hardly any weight to move. The platform is fixed so it will be perfectly level. All we have to move is a little bit of weight. That allows the hot ends to move faster especially with a bowden setup.
     
  20. Steven Bloom

    Steven Bloom Veteran
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    Last night the mini carriages were put on the vertical beams to hold the Y axis. We also started setting up the lead screw with the nut block. Also most if the legs are printed out now

    20151220_220756.jpg

    20151221_062858.jpg
     
  21. JustinTime

    JustinTime Master
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    Oh man, Steven, what happened to the helicopters? Got evicted? :ROFL:
     
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  22. Tim N

    Tim N Well-Known
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    Had to sell them all to fund for additional parts....
     
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  23. Val Cocora

    Val Cocora Veteran
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    Indeed, this is where our designs part away. I went with the inversed z solution because my extruder is 2 lbs. in weight, obviously not Bowden. Having it on a rail flying around would increase inertial forces, therefore jerk movement. On the other hand, a Bowden is hard to use in a big printer, due to the relatively long travel distances of the extruder, although one could think of some solutions.
     
  24. Steven Bloom

    Steven Bloom Veteran
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    We are going to attach the extruder to the middle of the Y rail. This way it will be the least amount of travel possible
     
  25. Steven Bloom

    Steven Bloom Veteran
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    Found the E3D holders on Thingiverse . Combined two of them with a plate and then put in a top holder for wires and another 19mm holder for a proximity switch. It has holes in the perfect position to mount on a Universal Gantry Plate. The STL is included.

    Double Bowden Holder.png
     

    Attached Files:

  26. stargeezer

    stargeezer Veteran
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    Hi Steve, Awesome build buddy! One small question, will such a large piece of glass lay flat? I suspect it may bow without any support in the middle. A single 20x20 would preclude that problem, I think. :)

    I could be all wet too. You are the one there looking at it.

    Cheer's!
    Larry
     
  27. Steven Bloom

    Steven Bloom Veteran
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    good question. I guess normal glass could bow but Tim ordered very thick glass. I cant remember the brand but it is capable of much higher heats. It is also 1/4" thick. So I don't think it will bow. We actually cant put anything in the middle, because the silicon heat bed glues on to the bottom of the glass.

    Thanks Steven
     
  28. Tim N

    Tim N Well-Known
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    Steve,

    It's a borofloat glass @ 6.5mm thickness.
     
  29. stargeezer

    stargeezer Veteran
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    Great!

    I've been off line for several days, family obligations, so catching up this morning has been great. Seeing this build is really getting my urge to build going again, but then again I have those Christmas presents (a mini-mill and a lathe) to play with.......
     
  30. Val Cocora

    Val Cocora Veteran
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    Hi Steven,

    Sometimes, I think building a large printer is a curse in disguise, but I only have me to blame for that.
    Glad to hear you could find your borosilicate glass for the 600x600 mm intended area. Been researching left and right for one myself, but at the dimensions I need, 1332x1170 mm, I managed to scare pretty much all the suppliers. Thickness is another issue, I am still undecided between 10 mm and 12 mm, but this only adds to the aforementioned curse. In Canada, such a glass would set me back anywhere from 3000 to 6000 bucks, and probably a whole year of sleeping on the couch if wifey found out. Luckily, there's China, Hong Kong to be more exact, where a 12 mm glass costs only 600 bucks.
    I am also toying with the idea of using a tempered glass, and use its slight, inherent bowing due to fabrication, to bring it back flat, by clamping it down at the edges of the heated platform.
    You mention the silicone pad sticking to the bottom of the glass. I wonder if the same would happen to me, seeing how my pad is considerably larger, and capable of 4000 watt at 110v, or 8000 watt at 220. I am asking this because I haven't got to that part yet, and I am trying to figure out all the glitches before the slap me in the face. Thank you in advance for your advice.
     

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