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  1. #1
    Administrator Eddie's Avatar
    Join Date
    Sep 2013
    Cape Coral, FL
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    The Peachy Printer Suggestion Thread

    As you know, several of the Peachy Printer guys frequent this unofficial forum. I thought it would be a good idea to create this thread to take suggestions for the Peachy Printer. Perhaps your idea would be something that would help put Peachy Printer over the top, and make it just that much better.

    Let's hear your ideas!

  2. #2
    Join Date
    Oct 2013
    I wonder if it is possible to design a printer where nothing moves apart from lasers. If the resin cures on light intensity (which I believe it does), is it theoretically possible to have say two or three focussed laser beams which print the object in situ, firing through the resin. So that the intensity at the focal point will cure the resin and not anywhere along the beams axes. Of course, to avoid the need for refractive corrections, the lasers would ideally be in the resin. Just a thought. No need for drips at all.

  3. #3
    For varies of reasons my first attempt to “improve” printer is not practical! Have realized this after some time thinking, reading little bit more :-D but have some more stuff in the next few lines:
    Hope it is not too late:

    1. definitely I would like to separate water from resin (practical reasons not mixing two substances)
    2. Printer structure which now is 2 containers plus printing “head” should have additional container holder inside lower container (which is running along rails inside lower container) which can hold container with resin (narrow tall, shallow wide, etc… with task to reduce resin consumption) depending of size of printing object. In addition to this printing surface (four legged “M” letter shape) adjustable height, with spirit level elements of strategic position (legs) around structure for easy calibration (this one goes inside added container! Just middle part of letter "M" shape).
    3. With this modified hardware setup calibration of printing surface (level of water and resin) should be much easier and final print could be extracted without help of scissors! (I saw this on last video clip)
    4. I hope that I properly understood principle of how this printer works but there is something which I could not answer such as:

    - To have best print out in ideal situation laser beam should be perpendicular to surface?
    - If that is true, than laser beam when reaches “far” end of the printing object will have some “losses” in energy and laser beam shape will not be “circle”?
    - Finally is it possible compensating laser energy losses (beam energy)?

    • I assume that reflecting mirrors do not affect power level of laser beam!?


  4. #4
    Join Date
    Sep 2013
    San Diego
    You are correct. As the z height changes, the laser will need to be refocused. It may not be an issue for small prints, but for larger prints, focus could be a problem. However, if you float the inside container inside the outer container, and attach the peachy to it, the laser optics never need to be adjusted. See here (design by Spelljammer, here on the forum.)

    The reflecting mirrors do affect the power of the laser, but not enough to be a problem. The resin only needs a few miliwatts to cure.

  5. #5
    I thought of a way to make it possible to print big overhangs, bu I am not sure if it would work. It would be simply putting a second printer beneath the liquid contanier, and pum water out so that the resin would descend. The laser could then print in a shorter z. The big problem I see is that since the laser would ave to travel through the water, there coud be disortions. what do you think?

  6. #6
    My wishes are an short wiki or how-to for the usage of the printer, blender + script. Would it be posible to print highly inert material like PTFE or PFA?

    Thanks and please contuine being great.

  7. #7

    an other thing I would be great are markes for positioning. To be enabled to exactly print on things placed in the printer. So it can the resin can be changed and modifing older prints.
    Perhaps the laser could guide where to exactly place the older print?

  8. #8

    Suggestion for update video

    So far the prints shown have all been small, tall skinny prints. While this is great progress, I would love it to show some of the "standard" prints that are use to show off other 3d printers. For example the yoda head would be fantastic. Just start off one of your machines and let it go overnight and show the results.

    The reason I think this is important, is that I've got concerns about the laser being at more of an angle when the outside edges appear then in the centre. This would be more apparent in a large figure then a tall skinny one.

    I also would like to know how exact you currently are. If the yoda head is supposed to be 100 cm from ear to ear, how big is it actually getting. Does it distort from the middle to the outside. (eg if eyes are supposed to be 1 cm apart, do they match as well as the ear example above).

    I'm not suggesting that you would expect perfection at this early stage, but it would be nice to have a reference of a large object as well as a small one.

  9. #9
    Hello 3D (proper) printer team,
    It is me again with new idea. This time is related with “printing head”(in text PH). Generic layout is single PH, what about idea to make “cluster” of 5 PH? Good reason is to allow prints on a large scale. Central print head will do what is designed to (size wise), additional PH will be placed on each side of the first PH in such way to share piece of common (task) track and taking over from first printing head if program (size of the object) reaches this additional printing head area.
    Also multi printing option can be arranged simultaneously. Multitasking printing head will be great asset for this project.
    Good work 3D printer team!
    Last edited by kmak; 12-19-2013 at 12:59 AM.

  10. #10
    Staff Engineer
    Join Date
    Dec 2013
    I'd love to see a large-scale print, or one with print-in-place features.

    Frankly, I'd love for every 3D Printer on Kickstarter to do an update with prints of 3D Kitbash's "3D Printer Test Kit". Though I've got confidence that the Peachy would likely ace most of the chips in the set after seeing the update with the Julia Vase.

    Sadly, I wasn't able to back the project. (I got my job about a week after the Kickstarter finished.) I'll just have to wait until summer and get mine when the store opens up.

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