3D guys (Page 1/1)
MidEngineManiac MAR 26, 12:04 AM
You might want to play with this !!

https://www.youtube.com/watch?v=t_9ADBZVCoA&t=51s

It took the 9-hour job I was doing down to 4.

(The profile itself is down in the comments area)

[This message has been edited by MidEngineManiac (edited 03-26-2022).]

TheDigitalAlchemist MAR 27, 09:11 AM
Haven't watched it yet, but

One thing I just want to toss out there is DON'T "Overclock" your printer! (Don't push it too much faster that the hardware can handle). you can print thicker layers, wider diameter nozzle, less infill, different pattern infill, tweak retraction and other rate settings, different print paths, first few layer speeds and temps etc...

but be careful about speed.

Lets say a printer max is set to print 100mm/sec. it probably can handle 150 mm and the prints will look ok and the printer will still be fine for years. but push it to 200 mm/sec, and it'll be dead within six months...

We took one of our printers and played around with the speed, wanted to see how much we could reduce the print time, and ran some torture tests and it was crazy how much faster we could print, until... oooof, the linear rail carriage was NOT happy. (replacement was 20 bucks, but still...)

I'll watch the video tonight, thanks for sharing!
MidEngineManiac MAR 27, 10:40 AM
LOL, tha'ts exactly how I killed my 1st Ender (now a parts donor for the Pro )

I ran a couple tests with this profile, and it wont hurt the machine BUT, its not a "finished goods" profile. It's great for prototyping and test-fit and proof of concept, but nothing I would want to sell or use.

My usual "sale" profile is (PLA+) 60mm/s, 2-3 walls, 20% cubic. For structural stuff I bump that to 5-6 walls, 5-6 top/bottom layers, 40-50% quarter-cubic or gyroid. Slow and uses a lot of filament but the finished thing is NICE and wont break at the 1st handling.

Same as cars and bikes. Warp-speed is all fun and games until you blow something up.

[This message has been edited by MidEngineManiac (edited 03-27-2022).]

TheDigitalAlchemist MAR 27, 06:06 PM

quote
Originally posted by MidEngineManiac:

Warp-speed is all fun and games until you blow something up.




Hah, so true!
MidEngineManiac MAR 28, 11:07 AM
I know what I am playing with next weekend !! Could be just the solution to some bike parts.
Synthesis MAR 31, 05:25 PM
I'm not sure I understand the thought process behind not pushing a printer?

I'm currently pushing plastic at 350mm/s print (not travel, but actual print speeds) on a modified Ender 6 and I get zero ghosting/ringing, and my parts come out flawless on the larger ones. The smaller print don't get enough cooling, so I have to slow the print down or minimum time the layers.
A stock printer wouldn't do this, so that is something you don't push if you want longevity.

Mods:
Klipper on stock board, though I have a Fly FLZ prepped for a swap in to support the ERCF Multi-filament unit.
NGK Japanese MGN12C linear rails for X/Y
Biqu H2 V2 direct drive extruder
Copper block volcano with .4mm brass nozzle
85 watt cartridge @ 24v
120v bed heater
NEMA23 BLDC Servos (Clearpath) for X/Y
Input shaper has been run.

The unit is bolted to a 2" thick MDF surface and I'm currently printing the rest of my Annex Engineering K3 parts on it. The CR-10s is parked for now, and I'll perform a rail upgrade on it before I put it back into production soon.
MidEngineManiac MAR 31, 06:49 PM
You got me on the speed there, but I am running bed-slingers. Core XY is in the plans there are just other priorities first, and when I DO "bit the bullet" its going to be a big (450x450x450) one based on the Piper designs. Already got about 1/2 the changes I want done on paper.

Kinda figure if I am gonna do it, do it right the 1st time.

For the ender 3, that test profile above showed me even on that short a machine I need z braces to really crank up the speed. Custom design 1/2 done already, I'll post pictures when its done. (WOULD be right now except I ran out of black filament last night. . Finished one side with maybe 10-12 turns left on the spool. Amazon says they will be here by Tuesday)

[This message has been edited by MidEngineManiac (edited 03-31-2022).]