Anyone know much about 3d printers?

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gnat
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Re: Anyone know much about 3d printers?

Post by gnat » Sun Apr 21, 2019 6:51 pm

32wildbilly wrote:
Sun Apr 21, 2019 5:09 pm
#1: What mean MMU?
Sorry, thought I discussed this previously. Multi Material Unit

It's an attachment that allows the automated use of multiple filaments (5 in this case) in a single print from a single extruder. You can also mix material types (e.g. PLA, ABS, Nylon, PET, etc..) in a single print.

The only other option is the Mosaic Palette, it has lots of issue complaints too though and is 2x the cost.
#2: Prague as in Czechoslovakia?
Yeap. That's where the company that makes this printer is.
#3: 100 print hours to reprint just the silver?
2 prints (legs) = 30+ hours each. 2 take 24 hours (arms)

0.05mm layer height prints are SLOOOOOOOOW :(
One comment: Move work up to the kitchen table until the part shows up. :o
And be stuck on my 15" MacBookPro with a single landscape monitor and crappy keyboard vs my Linux workstation with 3 portrait 24" monitors and an old school mechanical keyboard? NFW :P ;)

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32wildbilly
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Re: Anyone know much about 3d printers?

Post by 32wildbilly » Mon Apr 22, 2019 7:53 am

gnat wrote:
Sun Apr 21, 2019 6:51 pm
32wildbilly wrote:
Sun Apr 21, 2019 5:09 pm
#1: What mean MMU?
Sorry, thought I discussed this previously. Multi Material Unit

It's an attachment that allows the automated use of multiple filaments (5 in this case) in a single print from a single extruder. You can also mix material types (e.g. PLA, ABS, Nylon, PET, etc..) in a single print.
One comment: Move work up to the kitchen table until the part shows up. :o
And be stuck on my 15" MacBookPro with a single landscape monitor and crappy keyboard vs my Linux workstation with 3 portrait 24" monitors and an old school mechanical keyboard? NFW :P ;)
MMU: You probably did explain that all this techie talk confuses me. Kitchen table: I understand the downgrade you would experience, but you could probably assist in the child care arena during your breaks or brakes, if you desired.
"Thoughts and Prayers"

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Re: Anyone know much about 3d printers?

Post by 5chn3ll » Mon Apr 22, 2019 4:27 pm

The absolute BEST part is when the extruder inexplicably fails to feed plastic for JUST long enough to introduce an irreparable, fatal flaw - but not quite long enough that you'd notice and stop the damn thing printing.

Understeer: You will hit the wall with the front end.
Oversteer: You will hit the wall with the rear end.
Horsepower: How hard you will hit the wall.
Torque: How far you will move the wall.

"Reading tire date codes is for p*****s."
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gnat
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Re: Anyone know much about 3d printers?

Post by gnat » Mon Apr 22, 2019 5:34 pm

5chn3ll wrote:
Mon Apr 22, 2019 4:27 pm
The absolute BEST part is when the extruder inexplicably fails to feed plastic for JUST long enough to introduce an irreparable, fatal flaw - but not quite long enough that you'd notice and stop the damn thing printing.
So far (knocks on wood) in 1000+ hours of printing I have have zero missed or shifted layers. Either it is a clean print (99% of the time) or it's a full and clear fail. I think that is going to change with the MMU though as it apparently LOVES missed and shifted layers :(

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Re: Anyone know much about 3d printers?

Post by 5chn3ll » Tue Apr 23, 2019 8:37 am

Since I rejiggered the overhead filament stand, the Makerbot has been reliable - but the issue with large-footprint objects warping up off the glass may be insurmountable without upgrading to a heated build plate, and I'm not sure I want to sink even more money into an obsolete printer.

Understeer: You will hit the wall with the front end.
Oversteer: You will hit the wall with the rear end.
Horsepower: How hard you will hit the wall.
Torque: How far you will move the wall.

"Reading tire date codes is for p*****s."
-P. Walker


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Re: Anyone know much about 3d printers?

Post by gnat » Tue Apr 23, 2019 8:49 am

5chn3ll wrote:
Tue Apr 23, 2019 8:37 am
Since I rejiggered the overhead filament stand, the Makerbot has been reliable - but the issue with large-footprint objects warping up off the glass may be insurmountable without upgrading to a heated build plate, and I'm not sure I want to sink even more money into an obsolete printer.
Don't know how it works without a heated bed, but adding a PEI sheet to your bed may help: https://all3dp.com/2/pei-sheet-as-a-3d- ... t-a-guide/

It's soooo nice not having to play games with glue and tape for PLA. I just wipe it down with 91% and print. Finally did my first PETG print just before taking it apart. The recommendation there is to simply spray the plate with windex, worked like a charm (though it was not stuck nearly as well as PLA does so I don't know how a large print would fair.

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Re: Anyone know much about 3d printers?

Post by 5chn3ll » Tue Apr 23, 2019 9:18 am

I'll give it a try - I've pushed the limits of painter's tape squares and hairspray....for massive raft prints, something with more stick-um is definitely needed.

Understeer: You will hit the wall with the front end.
Oversteer: You will hit the wall with the rear end.
Horsepower: How hard you will hit the wall.
Torque: How far you will move the wall.

"Reading tire date codes is for p*****s."
-P. Walker


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Re: Anyone know much about 3d printers?

Post by gnat » Tue May 14, 2019 2:18 pm

Ummm... Maybe keep your keys out of sight...



And that 3D printer they used is positively garbage. Mine wouldn't need the raft, wouldn't need the glue, and would have had a glass smooth bottom side. That example just gives 3D print quality a bad name!

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Re: Anyone know much about 3d printers?

Post by 5chn3ll » Wed May 15, 2019 10:16 am

Crappy print, but interesting video.

I would never print a raft on a part like a key - but I'm very lazy.

Understeer: You will hit the wall with the front end.
Oversteer: You will hit the wall with the rear end.
Horsepower: How hard you will hit the wall.
Torque: How far you will move the wall.

"Reading tire date codes is for p*****s."
-P. Walker


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32wildbilly
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Re: Anyone know much about 3d printers?

Post by 32wildbilly » Wed May 15, 2019 11:54 am

Two observations:

#1: The two hosts are geeks and way too excitable!

#2: ACE Hardware can make a duplicate key that works much much faster and, I'm guessing, much cheaper as well.
"Thoughts and Prayers"

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