Trains.com

Subscriber & Member Login

Login, or register today to interact in our online community, comment on articles, receive our newsletter, manage your account online and more!

3D Printing Help

1649 views
9 replies
1 rating 2 rating 3 rating 4 rating 5 rating
  • Member since
    March 2011
  • 1,950 posts
Posted by NVSRR on Saturday, December 11, 2021 7:24 PM

Yeah.  I found that not all cleaners work the same on those FEP.  Some will reduce adhiesion far better than others.

A pessimist sees a dark tunnel

An optimist sees the light at the end of the tunnel

A realist sees a frieght train

An engineer sees three idiots standing on the tracks stairing blankly in space

  • Member since
    December 2004
  • From: Rimrock, Arizona
  • 11,251 posts
Posted by SpaceMouse on Friday, December 10, 2021 12:12 PM

NVSRR
Some FEP has a protective film on it.   Instructions usually hide well this fact. That and that it needs to be removed.

Yeah, it has that film. I'll try to remove it. I'll bet that it was the source of both problems. The resin is not supposed to stick to the FEP, but the film cover probably does.

Chip

Building the Rock Ridge Railroad with the slowest construction crew west of the Pecos.

  • Member since
    March 2011
  • 1,950 posts
Posted by NVSRR on Friday, December 10, 2021 8:20 AM

After poking around I did find an interesting post.  Using image search instead of matching words.    Some FEP has a protective film on it.   Instructions usually hide well this fact. That and that it needs to be removed.    Check the FEP for that film.  If it is there remove it.    

so far I only found two pics that look similar to yours but both had a similar answer to start there.  

shane

 

A pessimist sees a dark tunnel

An optimist sees the light at the end of the tunnel

A realist sees a frieght train

An engineer sees three idiots standing on the tracks stairing blankly in space

  • Member since
    March 2011
  • 1,950 posts
Posted by NVSRR on Friday, December 10, 2021 7:31 AM

I hear all the time to use the forums because so big with users.   Strange.  Ok off the wall idea.  Any cubic  and phrozen are big too.  You could try to post there  without mentioning it is an elagoo. You definitely have me wondering. If that is a general potential problem over any platform or machine specific.  Worth tracking down an answer.  

shane

A pessimist sees a dark tunnel

An optimist sees the light at the end of the tunnel

A realist sees a frieght train

An engineer sees three idiots standing on the tracks stairing blankly in space

  • Member since
    December 2004
  • From: Rimrock, Arizona
  • 11,251 posts
Posted by SpaceMouse on Thursday, December 9, 2021 5:36 PM

Well, I started a chat on the Elegoo site--no response.

I sent an email to technical support--no response.

I joined their users forum--I can read but there is no way to post. There are 100's of question and the lowest view post was 44 views. Of the first 25 or so posts, most had 0 replies. Maybe 4 did have replies. 

I looked on help and they said new topics could be started by clicking buttons on the top or bottom of the page. Help said the moderator could block posts on the individual forums but none of the pages had start thread buttons. And I really looked.

They have a Facebook page, but it more or less chaos and mostyly pictures of printed and painted miniatures.

I don't know where to turn. 

Chip

Building the Rock Ridge Railroad with the slowest construction crew west of the Pecos.

  • Member since
    December 2004
  • From: Rimrock, Arizona
  • 11,251 posts
Posted by SpaceMouse on Thursday, December 9, 2021 3:03 PM

NVSRR
I would definitely contact the elagoo forums.

Will do as soon as I finish what I am working on. I'll let you know.

Chip

Building the Rock Ridge Railroad with the slowest construction crew west of the Pecos.

  • Member since
    March 2011
  • 1,950 posts
Posted by NVSRR on Thursday, December 9, 2021 1:01 PM

I was thinking more the calibration it does before it starts printing like finding the start elevation.  And locating the film to start.    I would definitely contact the elagoo forums.   The knowledge base there might have seen this before or have an immediate answer.    I would love to know what it is.

 

shane

A pessimist sees a dark tunnel

An optimist sees the light at the end of the tunnel

A realist sees a frieght train

An engineer sees three idiots standing on the tracks stairing blankly in space

  • Member since
    December 2004
  • From: Rimrock, Arizona
  • 11,251 posts
Posted by SpaceMouse on Thursday, December 9, 2021 12:16 PM

NVSRR
Well first I would replace the film and try again.

Thanks.

I had just replaced the film. The calibration tools were the first prints on it.

Chip

Building the Rock Ridge Railroad with the slowest construction crew west of the Pecos.

  • Member since
    March 2011
  • 1,950 posts
Posted by NVSRR on Thursday, December 9, 2021 11:57 AM

I have never actually come across anybody mentioning damaging the film.  Interesting.   Well first I would replace the film and try again.  With current settings just to see if it was a damaged or bad film to start with.     My other though is the units calibration is off or not working at all same with leveling.  So the resin doesn't get under either all the way.      Elegoo Mars has a large forum of its own that might be useful.  Most printers have thier own forums. 

shane

A pessimist sees a dark tunnel

An optimist sees the light at the end of the tunnel

A realist sees a frieght train

An engineer sees three idiots standing on the tracks stairing blankly in space

  • Member since
    December 2004
  • From: Rimrock, Arizona
  • 11,251 posts
3D Printing Help
Posted by SpaceMouse on Thursday, December 9, 2021 10:57 AM

I've been working on this for a while. Talk about steep learning curve. The printer is a Elegoo Mars 2, a resin printer.

I'm having two issues right now. So far, I've gotten one semi successful print.

  1. My prints are coming off the supports and attaching to the film in the resin vat. I read on your site that this was caused by too little exposure time. I was running at 2.5 seconds. So downloaded a calibration tool and after testing at 4.5s and 3.5s and 3 seconds I decided on 3 seconds.   (Click to enlarge.) I tried to print and the print damage was worse than before.

  2. When you look at the prints you will see what looks like a crack in each of the calibration tests. When I drained the vat, I found the male version of the “cracks” on the film. It looks as if the cured resin stuck and pulled the top layer of the film off the lower layer and then stuck to itself. The “cracks” correspond to the cracks on the face of the prints. 

     

    So, whats my next step? Everything I've done so far seems to ruin the film.

Chip

Building the Rock Ridge Railroad with the slowest construction crew west of the Pecos.

Subscriber & Member Login

Login, or register today to interact in our online community, comment on articles, receive our newsletter, manage your account online and more!

Users Online

There are no community member online

Search the Community

ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT
Model Railroader Newsletter See all
Sign up for our FREE e-newsletter and get model railroad news in your inbox!