Re: Worm Drive Grounded Delta Printer
@SolidusLabs: You have longer arms now, what is the size of the build envelope? Can it accurately reproduce the arms, and worm wheel? What is the print speed, and what do you think the top print speed...
View ArticleRe: Building a 3DR "Simple"
My theory on the skew: DELTA_DIAGONAL_ROD is wrong. This would cause the X-Y symmetry to be maintained but skew Z.
View ArticleClik here to view.
Re: Building a 3DR "Simple"
I'm pretty sure I found the problem! I decided to examine the bot a lot more closely after re-re-re-measuring the tower heights and found this: IMG_20140127_182756.jpg That looks a bit warped, huh?...
View ArticleClik here to view.
Re: Building a 3DR "Simple"
Finally got the replacement printed in ABS with no curling... IMG_20140127_215444.jpg Sheesh, PLA is so much easier to work with! EDIT: Well, it actually warped a little even with the ears... It's not...
View ArticleRe: Building a 3DR "Simple"
Much better now! Also, it turns out the as-designed numbers for the measurements are dead on! I'm doing the last bit of calibration now to make sure my rods are right at 200mm as well. Edit: They are.
View ArticleClik here to view.
Re: Building a 3DR "Simple"
Hmmm. It turns out the totally warped and deformed platform was _not_ the cause of the strange skewing. After I got it all back together with the new platform, and got it re-calibrated, I tried the...
View ArticleClik here to view.
Re: Building a 3DR "Simple"
In other news: I've added active cooling to my extruder stepper, since it is under a good bit of load all the time: IMG_20140127_235321.jpg A heatsink and fan are epoxied on with heatsink epoxy and a...
View ArticleClik here to view.
Printable area of Deltas (Rostock, 3DR,...)
Hello, I have checked that my 3DR has it's virtual limit in the square circumscribed in the circular platform. Visual explanation: delta_size_01.png That is, I'm able to move the extruder to any point...
View ArticleRe: Printable area of Deltas (Rostock, 3DR,...)
I believe there is a setting in repetier (I assume that is what you are using), to switch your print area to circular/delta.
View ArticleRe: Automatic bed level issues
The geometry setting that needs to be adjusted is DELTA_SMOOTH_ROD_OFFSET in Configuration.h. Depending on which branch of Marlin you are using these values may be different. Originally the value in...
View ArticleRe: Printable area of Deltas (Rostock, 3DR,...)
Maybe firmware options: X_MAX_POS, X_MIN_POS, Y_MAX_POS, Y_MIN_POS. That is provided the software endstops are enabled (min_software_endstops, max_software_endstops). These settings are in...
View ArticleRe: Printable area of Deltas (Rostock, 3DR,...)
Yeah! You are right hercek, those options are the ones that control the limits... it was there but I wasn't able to find it, thanks a lot! The curious thing is that by default they are set to 90mm,...
View ArticleDelta hot end keeps melting plastic body
Im building a Delta Rostock, my j head gets so hot it melts the PEEK housing, its the second time its happened, I have noticed even when I set the temp in ponteprint to 200 it heats up to 230 then...
View ArticleRe: Dual extrusion, E-only move causing XYZ motion, bug in Marlin?
Looks like the tool switch code tries to move the printer in cartesian space not delta... Commenting out the plan_set_position() and prepareMove() shown below fixes this for me. else...
View ArticleRe: Delta hot end keeps melting plastic body
Have you tried calibrating your PID settings with M303 then editing your firmware?
View ArticleRe: Worm Drive Grounded Delta Printer
QuoteGuizmo Hello Jon How precise are the parts coming out of your machine? Are they usable as mechanic parts? Thanks The shoulder was fairly loose on the tolerances, it was probably 0.3 mm because of...
View ArticleRe: Delta hot end keeps melting plastic body
Yea that definitely sounds like a PID issue. It sounds like you are WAY overshooting your target temperature.
View ArticleThe minimum angle between rods and tower?
Hi, Building and designing my printer from the beginning (but not electronics and firmware). Will attach som pictures as the printer takes shape further on. Have recently build a carriage (printer...
View ArticleRe: The minimum angle between rods and tower?
The rods can go to "negative" angles (past vertical) in some designs. As long as nothing hits, there's no magic maximum angle. Look very carefully at what's going on for interference.
View ArticleRe: Delta hot end keeps melting plastic body
Thanks guys seems to have done sorted it out.
View Article