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#1 2021-08-05 14:11:14

tfowler
Member
Registered: 2021-06-22
Posts: 4

Prints too tall

Hello,


All the 10mm test models I print are printing almost a full millimeter taller than what they should be.


how do I fix this?

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#2 2021-08-06 02:46:28

bigfilsing
Member
Registered: 2016-11-20
Posts: 306

Re: Prints too tall

What machine ? What control board / firmware?
Is this a new build or has the printer previously worked?

There's a couple of things this could be. 
Esteps/mm for your Z axis are not calibrated properly.
Layer height does not match the sliced imagery or something similar

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#3 2021-08-06 13:17:18

tfowler
Member
Registered: 2021-06-22
Posts: 4

Re: Prints too tall

Thank you for the reply. I am using a phrozen shuffle xl with a raspberry pi 3 model B v1.2.

The printer has been working properly for months, but we just now realized it was printing models too tall.

Every 5mm it adds 0.2mm to the height.

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#4 2021-08-06 14:40:12

bigfilsing
Member
Registered: 2016-11-20
Posts: 306

Re: Prints too tall

so before nanoDLP / raspi combination how did you print ? or have you only ever used it with NanoDLP?

Best guess is the E steps need calibrating . Im not sure what firmware the phrosen shuffle XL uses

When i get a few mins ill research

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#5 2021-08-06 14:54:47

tfowler
Member
Registered: 2021-06-22
Posts: 4

Re: Prints too tall

The phrozen has only ever used NanoDLP to my knowledge. I've only worked with it when using NanoDLP. I am not the one who installed it.

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#6 2021-08-06 15:48:46

bigfilsing
Member
Registered: 2016-11-20
Posts: 306

Re: Prints too tall

tfowler wrote:

The phrozen has only ever used NanoDLP to my knowledge. I've only worked with it when using NanoDLP. I am not the one who installed it.

Ok

From what ive read the Phrozen printers use a chitu control board and there is only fixed firmware released for them . From that we can reasonable assume the Esteps per mm are set correctly.
SO that just leaves 2 options
Something is not set / working correctly in NanoDLp
or
there is a mechanical issue with the z axis This last is unlikely as typically axis issues result in binding / missed layers which would make models shorter not longer.

Do you load the model into Nano and let it do the slicing or use a standalone slicer then upload an image zip to nano ? If the issue is consistent ( in may ways a good things as its repeatable) then i would start looking into the slicing process   
Good luck

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