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3D Printer / CNC discussion thread

Entz

Well-known member
Joined
Jul 17, 2011
Messages
782
Direct drive is on my list, I keep going back and forth on it :ROFLMAO: . I would likely get a hemera as you get the pancake, extruder body and a upgraded hot end to boot.

Would be neat to try flexibles.
 

3.0charlie

3.0 "I kill SR2's" Charlie
Joined
May 22, 2007
Messages
9,949
Location
Bedford QC
PID done, flatliner.
Extruder multi done.
Wall thk too thick by 0.04mm. Easy fix.
Pressure advance set up complete.
Still manually tramming the bed when the brim is printing. Screw that autolevel shit.

I am pleased with the result.

15803361775781792321732174271479.jpg
 

lowfat

Moderator
Staff member
Joined
Feb 12, 2007
Messages
9,511
Location
Grande Prairie, AB
Still manually tramming the bed when the brim is printing. Screw that autolevel shit.

I am pleased with the result.
You don't know what you are missing. :p

Some pics of the BMG Volcano MK3S hot end. Its been working like a champ since I fixed the issues I had w/ it. I am going to eventually print the mount and nozzle out of PEI tho. This printer absolutely can't print large ABS parts.

IMG_20200129_152209 (Normal).jpg

MVIMG_20200129_152222 (Normal).jpg


IMG_20200129_152239 (Normal).jpg

Stat of my MP Mini. Printed a new 'dTitan' extruder for it using genuine Titan gears. Designed a hot end mount from scratch for it. Adding mesh levelling. Everything is printed out of PC-ABs currently. Going to convert from Smoothie to Marlin 2.0. Removed the Mean Well PSU and will be powering it by the 1400W 24V PSU I've shown previously. . The plan is to get this machine capable of printing PEI. Then I'll re-print the hot end mount out of PEI as well.

Renders of the hot end mount.
1.PNG

2.PNG
 

3.0charlie

3.0 "I kill SR2's" Charlie
Joined
May 22, 2007
Messages
9,949
Location
Bedford QC
Nice setups.

But I've tried a couple versions of auto bed leveling. none worked to my liking. this borosilicate glass is so smooth and level its unreal. I leveled the x-axis against the glass once, eyeball the gap from head to glass then print. minimal adjustments while printing the brim with the corner screws and final leveling done using once a 0.05 baby step.
 

sswilson

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Staff member
Joined
Dec 9, 2006
Messages
18,530
Location
Moncton NB
PID done, flatliner.
Extruder multi done.
Wall thk too thick by 0.04mm. Easy fix.
Pressure advance set up complete.
Still manually tramming the bed when the brim is printing. Screw that autolevel shit.

I am pleased with the result.

View attachment 28007
So... when you're manually trimming the bed while the brim is printing... how exactly does that work? Are you doing that just by how the line looks or taking it down to the point where it's almost cut off and then adjusting it up a quarter turn? Is it just a learned response unique to that particular hardware and would need to be learned over time with a new bed/printer/head?

I saw a video with "Chep" doing it on the fly, but had no inkling of how or why he was making the adjustments he was making....

If you're going by the look of the line that's being laid down, I've got serious doubts that my eyesight is good enough for that to be effective.... :)
 

3.0charlie

3.0 "I kill SR2's" Charlie
Joined
May 22, 2007
Messages
9,949
Location
Bedford QC
From making so many prints, I can feel - 'see' - how a first layer should look like for proper adhesion. Then yes, I adjust on the fly while the brim is being printed. Hence why it's 3-5 lines wide. Gives me time (lenght?) to adjust the z live.

But no, not a quarter turn but 1/16th turn. If your bed is well leveled against the x axis, that your print surface is relatively flat and you have previously adjusted the bed height vs the print end where a piece of paper slightly grips, then you aint far from first layer porn.


Screenshot_20200129-205032~2.png
 
Last edited:

3.0charlie

3.0 "I kill SR2's" Charlie
Joined
May 22, 2007
Messages
9,949
Location
Bedford QC
In this pic, you can make out the size of the printed corner adjustment wheel. when i adjust z height live, i push the wheel one tab only. And i misscounted, it's 1/12th turn - 12 tabs per wheel.

IMG_20200126_155404.jpg
 

sswilson

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Staff member
Joined
Dec 9, 2006
Messages
18,530
Location
Moncton NB
Cool, thanks. I was leaning towards it being almost as much a "feel" as it is a science... :)
 

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