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9Tail

PLUS- dimension test method

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9Tail    1

Mankati Fullscale XT Plus 40 x 40 test.jpg

Example: 

Model dimension: 40mm x 40 mm 

Green-left: dimension 39.2 x 39.3

Green- right: the one after parameter resetting with dimension 39.92 x 40.08

 

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NickP    7

9 Tail!!!

You are a star!

There was something like this on the old forum but it died before I could use it.

This is so great.

My machine is far from accurate at the moment.

Thank you!

Nick

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NickP    7

Hi guys,

I printed the test part for calibration (which is 100mm x 100mm) and it came in under 100mm in x and y axis.

I had previously printed a 20mm test cube that measured just over 20mm in all axis.

I was not expecting that at all

If it is printing slightly out, shouldn't it be out in the same way?

ie slightly bigger or smaller all the time not jumping between the two?

I'll do some more tests but thought it was worth a mention

or does shrinkage play a part? The bigger the part/ thermal mass, the more shrinkage?

Cheers

Nick

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Michael    0

Nick the issue of shrinkage, certainly from my experience is not linear and more in one axis then the other (can't remember which now).

somewhat annoying.....I was prototyping a custom special knee pad holder for iPad use in aviation and after much tweaking of the design to accomodate shrinkage got it dialled in good fit.    Then took the stl's to a 3D printing house to get 20 made.   Thank fully I asked (and paid extra for it) to have one done first to check......that was good insurance......as it ended up to big and unusable.

they said that my design should allow for no more than 0.2mm shrinkage over 100 mm with their process. .....wow OK.......so back to the drawing board as had to re-do the measurements.    So now have to have two designs, one for use with my printer and one for production printing.....ouch.

 

cheers

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NickP    7

Hi Michael,

Interesting, but not what I was hoping for.

I have an UP Mini which, although simple and fairly option-less, gives me way more dimensionaly accurate parts that always seem to fit together.

The Mankati is pretty crap at this and it's pretty frustrating.

I have had a large and steep learning curve with the Mankati and I have no doubt I have more to learn.

What can I do to dial it in more and get more accurate prints?

I use ABS 99% of the time.

Is PLA more dimensionaly stable?

I was hoping to rectify the inaccuracy overall.

Do I have to rectify the inaccuracy for every print?

If so, what use is this printer apart from being an expensive ball ache?

Open to any suggestions, help or deliveries of beer to cheer me up.

Cheers,

Nick

 

 

 

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mvm    12

NICE TOPIC !!

How accurate should the Mankati XT actually be?

I have parts that often have holes in them. For example, a 3 mm hole that needs a pin going through it.

But after printing, the hole is actually smaller, more like 2.7mm.  

I always thought this is because the strip of molten material than the extruder lays down on the bed always flows a little outward.

Or is this actually normal behaviour of the Mankati.

 

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carver2000    0

Hallo Michael,

Interessant, aber nicht das, was ich mir erhofft hatte.

Ich habe eine Mini, die zwar einfach und ziemlich Option-Less, weicht mir mehr Füllgutes genaue, die immer Teile zusammen zu passen scheinen.

Die Mankati ist ziemlich Mist dabei und es ist ziemlich frustrierend.

Ich habe eine große und steile Lernkurve mit der Mankati und ich habe keinen Zweifel, dass ich mehr zu lernen haben.

Was kann ich tun, um wählen Sie es mehr und mehr präzise Ausdrucke?

Ich benutze ABS 99 % der Zeit.

Ist PLA mehr Füllgutes stabil?

Ich hatte gehofft, die allgemeine Ungenauigkeit zu beheben.

Muss ich die Ungenauigkeit für jeden Druck zu korrigieren?

Wenn ja, was ist dieser Drucker abgesehen davon, dass eine teure Kugel Schmerzen?

Offen für Anregungen, Hilfe oder Lieferungen von Bier um mich aufzuheitern.

Viele Grüße,

Nick

 

 

 

Hi Michael,

have you become a solution to the problems of accuracy? I have the same problems, but no good solutions....

Regards, Christian

 

 

 

 

Hi Michael,

Interesting, but not what I was hoping for.

I have an UP Mini which, although simple and fairly option-less, gives me way more dimensionaly accurate parts that always seem to fit together.

The Mankati is pretty crap at this and it's pretty frustrating.

I have had a large and steep learning curve with the Mankati and I have no doubt I have more to learn.

What can I do to dial it in more and get more accurate prints?

I use ABS 99% of the time.

Is PLA more dimensionaly stable?

I was hoping to rectify the inaccuracy overall.

Do I have to rectify the inaccuracy for every print?

If so, what use is this printer apart from being an expensive ball ache?

Open to any suggestions, help or deliveries of beer to cheer me up.

Cheers,

Nick

 

 

 

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