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ismanu
(@ismanu)
Active Member
prints fail on small part

Hello folks,
i don't arrive to print this stuff...

Maybe it is too small ?

I set :
infill retilinear 20%
brim : 5mm
filament ABS.

and i never arrive to print this stink.

I check all my bolts and nuts, all is ok.

Vibrating ? (The printer is on "concrete")

if you have any ideas !

thanks, great day

Publié : 14/04/2017 9:44 am
Knickohr
(@knickohr)
Membre Moderator
Re: prints fail on small part

Too hot.

Give the layers time to cool down.

Printing with fan on after a few layers and/or print slower.

By the way, the thread ist too fine, it will never be a thread.

Thomas

Publié : 14/04/2017 10:51 am
ismanu
(@ismanu)
Active Member
Topic starter answered:
Re: prints fail on small part

🙂 yeah i thinked the same way just now !

Too hot OR / AND too speed !

i use default prusa preset : 255° / speed 100%

i wil try to reduce

Publié : 14/04/2017 11:13 am
Knickohr
(@knickohr)
Membre Moderator
Re: prints fail on small part

For the first, I would power on the fan after 10 layers or so by such tiny things.

Thomas

Publié : 14/04/2017 11:28 am
ismanu
(@ismanu)
Active Member
Topic starter answered:
Re: prints fail on small part

thanks i will try !!

Publié : 14/04/2017 11:39 am
richard.l
(@richard-l)
Membre Moderator
Re: prints fail on small part

Also, you can print 2 or 3 copies to give each one time too cool.

Publié : 14/04/2017 3:35 pm
ismanu
(@ismanu)
Active Member
Topic starter answered:
Re: prints fail on small part

hy richard,
i have bad experience with multi object. If one object unstick... it is the end of your print ! Now i only print part by part, it s secure !!

So, i have tried a lot of settings.

KO : temp 255°

KO : temp 250°

KO : temp 250° + fan (thread ko, but the rest is good).

OK : temp 255° + fan + speed 60%

With this last settings, the thread is ok, and the rest too.

So for very small part you need to decrease the print speed, but i don't find a "solution".

Like the "edit layer" in slic3r, a new tab will be welcoming ! : > "Edit speed"

So you can change the print speed like you change the quality print !

When you have a small part with hight detail, you can increase the quality and reduce speed for obtain a perfect print !

but the features does't exits.

I tried to change gcode "G1 Fx" but it's imposible... too many G1 in the file 🙁 this must be done during gcode generation !!

Publié : 15/04/2017 3:03 pm
kevin.r5
(@kevin-r5)
Estimable Member
Re: prints fail on small part

You can change print speed for a selected part of your model by using a modifier mesh.

-Kevin

Publié : 15/04/2017 5:49 pm
ismanu
(@ismanu)
Active Member
Topic starter answered:
Re: prints fail on small part

Yeahhhh that sound good !
Now i have to figure out "modifier" lol

Thanks !!

Publié : 15/04/2017 6:38 pm
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