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Rips or non sticking portion of layers  

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HighPointeLowLife
(@highpointelowlife)
New Member
Rips or non sticking portion of layers

Cant figure out why I am getting "rips" in my prints.  I am showing three examples.  Some models are coming out without any issue and some are having bonding problems.  The 2 mandolorian models are printed exactly the same (just reprint thinking it was an artifact) but it did it again on a different spot.  The dental model I printed on a different printer (Sprintray) with different resin, but it did not have the issue.

Any suggestions on what can cause this.  It is a new printer.  I have run the calibration multiple times, I am getting some models that are absolutely perfect so I can't figure out what could be the difference. 

Just to note the black is just where I marked it with a sharpie to show the ripped area.

This topic was modified 2 years ago by HighPointeLowLife
Posted : 26/01/2022 3:30 pm
2regburgessearthlink.net
(@2regburgessearthlink-net)
Eminent Member
RE: Rips or non sticking portion of layers

I know it has been a while since you asked this, but I am relatively new (here, though not to 3d printing) and I rarely log in.

 

A few "guesses".

1) Resin temperature - I think most resins perform very poorly below 25 or so degrees C.

I pre-heat mine in a CW1S to 40 C for at least 1/2 hour.

2) FEP film deterioration - without knowing how many prints you have done or how the film looks... if it is "cloudy" I would change it.

3) The general "cleanliness" and contamination issues, number of times resin has been poured back as left overs, etc.

 

Posted : 24/10/2022 5:17 pm
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