Abstract
The delta 3D printer design, despite the radically different axes arrangement, uses the same basic hardware as a Cartesian printer. For example, there isn’t anything special about the stepper motors, electronics board, or even the hot end. The differences are in how the axes are arranged (all three are vertical), and that the print bed is typically round (older designs use square or rectangular build surfaces) and the frame is typically triangular. These qualities alone are what give the delta printer its unique vertical form with a small footprint.
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Notes
- 1.
Some earlier firmware did not support delta printers. Fortunately, Marlin and Repetier-Host fully support delta printers.
- 2.
It’s on the Internet, so it must be true, eh?
- 3.
See themathpage.com/atrig/solve-right-triangles.htm.
- 4.
The actual Z position is the minimal Z-height. For example, the nozzle is normally positioned 0.15mm – 0.25mm above the print bed at Z = 0.
- 5.
Yes, this is a bit of horse-before-the-cart, but I feel it is important to understand how the mathematics works in a general sense, which should help you understand what all these values are and how they affect the calculations.
- 6.
There are delta printers with an extruder directly on the effector, and others where the extruder is suspended on elastic strings just above the effector with a very short Bowden tube.
- 7.
See matterhackers.com/store/printer-accessories/v6-hot end-full-kit-1.75mm-universal.
- 8.
You could scale or modify this design to accommodate other frames, provided there is a center slot or channel.
- 9.
Nobody wants that!
- 10.
Johann C. Rocholl suggests, “I predict it is going to completely replace RAMPS and Marlin in the next couple years.”
- 11.
All wooden frames are more susceptible to environmental conditions, such as varying humidity and temperature making it a less than ideal material choice. Note that Melamine dramatically reduces these effects.
- 12.
Perhaps an evolution.
- 13.
Look closely at the photo. Notice the custom spool roller on top.
- 14.
While I normally test-fit panels such as this, my one lapse ended in a spectacular part failure. Always test fit your parts before installing them, especially tension-fit mounts.
- 15.
I saw one described as a Mini Kossel XL. What?
- 16.
Which, with few exceptions, are normally very terse.
- 17.
I know, I know. It sounds like I don’t want to choose, but in this case it’s true.
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© 2015 Charles Bell
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Bell, C. (2015). Delta Printer Hardware. In: 3D Printing with Delta Printers. Apress, Berkeley, CA. https://doi.org/10.1007/978-1-4842-1173-1_2
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DOI: https://doi.org/10.1007/978-1-4842-1173-1_2
Publisher Name: Apress, Berkeley, CA
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