Building a 3DR "Simple"

Quote
gmh39
Does it really matter? Each axis should be the same geometry and identical.

// Center-to-center distance of the holes in the diagonal push rods.
#define DELTA_DIAGONAL_ROD 200.0 // mm | 200 mm as built

// Horizontal offset from middle of printer to smooth rod center.
#define DELTA_SMOOTH_ROD_OFFSET 155.0 // mm | 135.518 mm from CAD

// Horizontal offset of the universal joints on the end effector.
#define DELTA_EFFECTOR_OFFSET 22.872 // mm  | 22.872 mm from CAD

// Horizontal offset of the universal joints on t  he carriages.
#define DELTA_CARRIAGE_OFFSET 16.5 // mm | 16.5 mm from blog on first design

G0 F8000 X0 X0 Z0

G0 F8000 X-58 Y-34 Z0

Quote
brendanjerwin
Alright, I'm at a bit of a lose here.

I'm trying to get the delta radius set but things just aren't making sense.

With these settings (I know, horrible things done to the smooth rod offset):

// Center-to-center distance of the holes in the diagonal push rods.
#define DELTA_DIAGONAL_ROD 200.0 // mm | 200 mm as built

// Horizontal offset from middle of printer to smooth rod center.
#define DELTA_SMOOTH_ROD_OFFSET 155.0 // mm | 135.518 mm from CAD

// Horizontal offset of the universal joints on the end effector.
#define DELTA_EFFECTOR_OFFSET 22.872 // mm  | 22.872 mm from CAD

// Horizontal offset of the universal joints on t  he carriages.
#define DELTA_CARRIAGE_OFFSET 16.5 // mm | 16.5 mm from blog on first design

It goes right to the center at 0-height when I execute:

G0 F8000 X0 X0 Z0

But it goes just a hair off the side of the bed and ~6mm above the bed when I execute this:

G0 F8000 X-58 Y-34 Z0

I've been _increasing_ the smooth rod offset to try and get the heights at the center and edge on the same plane, but all it seems to be doing is pushing the thing further to the side. (It makes sense that it would too, but I guess I need to know what to adjust to get the heights on the same plane.)

Quote
Funkymonk
I designed a plastic spool holder for the 3DR Simple. It works great in conjunction with:[www.thingiverse.com].
Just place it in the upper frame.

Quote
RTurnock

Quote
Funkymonk
I designed a plastic spool holder for the 3DR Simple. It works great in conjunction with:[www.thingiverse.com].
Just place it in the upper frame.

[www.thingiverse.com]
3DR-Simple Filament spool holder
by Funkymonk, published Jan 20, 2014
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Is there a way to get this designed to fit a Mini Kossel?

Quote
JohnSL
And yes, you have to follow the same steps as it seems the Printrboard doesn't have a bootloader that would allow you to download the firmware directly from the Arduino IDE.