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The top part of the print fails  

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Tabo
 Tabo
(@tabo)
Eminent Member
The top part of the print fails

I'd like to learn how to print the top part of this vase.   The pipes fail to print and I'm reluctant to use supports for fear of breaking the small pipes.    This is printed smaller than the actual size just for practice.  I'd like to use this as an Orchid pot.  Thanks for checking this out.

Posted : 18/01/2023 12:06 am
Diem
 Diem
(@diem)
Illustrious Member

Er, perhaps tell us which model and supply pictures of a failed print ... including a bottom view.

Cheerio,

Posted : 18/01/2023 5:43 am
Tabo
 Tabo
(@tabo)
Eminent Member
Topic starter answered:
RE: The top part of the print fails

Good evening. I thought I attached my g-code file to this post but when I returned I saw it did not.   Thank you for pointing this out for me.   I have loaded the rendering of my Fusion file, and the pic of my actual print.   Thank you very much for helping. 

 

Posted : 19/01/2023 1:59 am
Diem
 Diem
(@diem)
Illustrious Member

I'm not surprised you have problems.

Where did you get this file?  Judging by the render this is not designed for fdm printing ... has it ever been printed?

Some of the 'pipes' are at shallow angles which make very steep overhangs with almost no core to adhere to.   Printing undersize is going to be particularly difficult.

You still haven't attached a file, most useful for us would be a .3mf saved from Prusa Slicer:

Files > Save Project as

Zip the .3mf and post it here. It will contain both your part and your settings for us to diagnose.

It must be zipped or the forum software will discard it.

Cheerio,

Posted : 19/01/2023 5:17 am
Tabo
 Tabo
(@tabo)
Eminent Member
Topic starter answered:
RE: The top part of the print fails

Thank you for your reply.  I designed the pot myself in Fusion 360. 

I knew printing it would be a challenge so that's why I'm here.   

I have attached the zip file. 

Thanks for the tip on zipping the file I was wondering how to post it.  

Have a great day

Bob

Posted : 19/01/2023 11:55 pm
Diem
 Diem
(@diem)
Illustrious Member

Er, that's a gcode file, almost useless for us as it merely preserves the output without the source or the settings.

For diagnosis we need to see the settings, usually preserved alongside the mesh file in a .3mf container saved as above...

But don't bother this time.

I loaded it into preview.

The 'pipes' are never going to print well on your Mk2.5 or any other i3 fdm printer. The near vertical ones *might* be possible with care but even those are a stack of single perimeters each balanced on another single perimeter ... the result being a tower narrower than a strand of filament.

The near horizontal ones are single perimeters supported by about 20% of each loop at one end - you cannot print in mid air and designing supports for this would be a nightmare.

If you want to persist with this design I suggest translating the lattice into a negative space and subtracting it from the mesh  leaving sockets into which you could insert 1mm spring steel wires that you could then solder into your triangulations.

If you make the pipes a little fatter you could substitute filament direct from the spool and weld it with a soldering tip.

Or:  Construct them from scratch with a 3D Pen.

Cheerio,

Posted : 20/01/2023 9:25 pm
Tabo
 Tabo
(@tabo)
Eminent Member
Topic starter answered:
RE: The top part of the print fails

Thank you for your time.

Posted : 20/01/2023 11:25 pm
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