I need some advice. My next project will be a delta printer.

3D Printing
,
1

I need some advice. My next project will be a delta printer. Just because I think it’s a very cool design.
Not too big, a bed 20 cm in diameter would be sufficient.
Now, what are the pitfalls, how do I calculate the lenght of the rods, etc?

2

I felt the same as you. I ended up going with a variant of a Kossel Mini. There are lots of resources when you go with a proven design.
There are also variations others have worked out. I was lucky to find a variant that uses the 25mm extrusion and 8mm rods I had on hand.

3

I have some 12mm rods laying around, and some 30mm extrusions. Would love to use those.

4

@Rien_Stouten
Sounds like the beginnings of a full-sized Kossel. Those are about 800mm tall. You might want to look into that.

5

@Rien_Stouten here’s another design worth checking out, a mini kossel scaled up for 2020s

https://plus.google.com/app/basic/stream/z13zxrupowynftzdm22nffsxosjltfy4204

6

@Eric_Duprey Nonononoo, a minimax is far too big. I already have one huge printer in my mancave, which generates an enormous amount of heat, I’m looking for something a little smaller. But thanks anyway, I didn’t know about that one.
Same goes for the full size kossel @Carlton_Dodd .

7

@Rien_Stouten
Yeah, I figured that. I was just going off of your existing part sizes.

8

@Carlton_Dodd That’s ok. I guess it’s gonna be a fat short one. But how short can I build if I don’t want to print higher than 20 cm?

9

@Rien_Stouten
I’m new to deltas as well. I would think the problems would be with the arm length and calculations.
The problem with deltas is that the geometry of the arms adds height. Even a standard Kossel only has a 24cm build height. If printer size is an issue, you probably want to stick with Cartesian.

10

@Carlton_Dodd
24cm? Sht. What about all those photo’s with huge vases and sht?
If that is true, I not so sure I want to build one, anymore. A nice corexy is kinda cool too.

11

@Rien_Stouten
Just going off of the 600mm height one:
http://reprap.org/wiki/Kossel

12

@Carlton_Dodd yup, you are right. corexy is a lot more fun, all of the sudden.