PETG Print crackling after being printed, shrinking, cracking. Solution?
 
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bobstro
(@bobstro)
Illustrious Member
RE: PETG Print crackling after being printed, shrinking, cracking. Solution?

Hoping others understand the importance of the 3MF to get all of the relevant information.

My notes and disclaimers on 3D printing and miscellaneous other tech projects
He is intelligent, but not experienced. His pattern indicates two dimensional thinking. -- Spock in Star Trek: The Wrath of Khan...
Posted : 01/04/2021 12:46 pm
Nikolai
(@nikolai)
Noble Member
RE: PETG Print crackling after being printed, shrinking, cracking. Solution?

@seattledavid: You got exactly what you was asking for right in the first answer. @peter-m summed up pretty short what you have to do in order to print this object successfully.

Keep asking same things without willing to try the suggested solutions to your simple problem (bad layer adhesion) is the real waste of time for all people.

Often linked posts:
Going small with MMU2
Real Multi Material
My prints on Instagram...
Posted : 01/04/2021 1:06 pm
Dan Rogers
(@dan-rogers)
Noble Member
RE: PETG Print crackling after being printed, shrinking, cracking. Solution?

It's embarrassing.  I live near seattle.  A lot of seattle people are holier than though, quick to judge, and will throw a fire bomb at your house if you don't agree with them.  I try and avoid seattle.

Posted : 01/04/2021 2:23 pm
SeattleDavid
(@seattledavid)
Estimable Member
Topic starter answered:
RE: PETG Print crackling after being printed, shrinking, cracking. Solution?
Posted by: @nikolai
You got exactly what you was asking for right in the first answer. @peter-m summed up pretty short what you have to do in order to print this object successfully.

Keep asking same things without willing to try the suggested solutions to your simple problem (bad layer adhesion) is the real waste of time for all people.

Yes. And the cure was worse than the disease.

I agree that peter-m was probably correct that I needed to build a chamber for my printer, carefully manage the cool down, and that I would need to do several tests using a temperature tower. All of this made sense, sounded correct, and might eventually lead me to a successful print.

And all of that work would be to replace a 210mm x 200mm x 18mm piece of wood. A cheap, simple, piece of wood that was already in my scrap pile in my wood shop.

Now, you are upset that I didn’t want to build a modification to my printer and spend a day or two of my time to make this problematic plastic print work...when the simple, smart, quick solution is to replace the spine of the item with a wood block.

I am not an academic, and I am the pragmatic one here. My printer is a tool. You should use the right tool for the right application. It quickly became apparent that this was not the best application for printed plastic.

This post was modified 8 months ago 2 times by SeattleDavid
Posted : 01/04/2021 2:35 pm
SeattleDavid
(@seattledavid)
Estimable Member
Topic starter answered:
RE: PETG Print crackling after being printed, shrinking, cracking. Solution?
Posted by: @dan-rogers

I try and avoid seattle.

Thank you very much!

Posted : 01/04/2021 2:36 pm
Nikolai
(@nikolai)
Noble Member
RE: PETG Print crackling after being printed, shrinking, cracking. Solution?
Posted by: @seattledavid

Now, you are upset that I didn’t want to build a modification to my printer and spend a day or two of my time to make this problematic plastic print work...when the simple, smart, quick solution is to replace the spine of the item with a wood block.

I am not an academic, and I am the pragmatic one here. My printer is a tool. You should use the right tool for the right application. It quickly became apparent that this was not the best application for printed plastic.

I'm not at all. If you've decided already right after the first post to solve your problem different way, then it's perfectly fine. Just a simple "Thanks, solved it with a wood block" would've been a perfect answer.

People are usually posting in this forum to learn the tool 3D printer better. It's a perfect place to discuss topics, get different views and describe things in detail. For a quick view and polls on the issue, the FB groups would be a better place.

Often linked posts:
Going small with MMU2
Real Multi Material
My prints on Instagram...
Posted : 01/04/2021 2:49 pm
Dan Rogers
(@dan-rogers)
Noble Member
RE: PETG Print crackling after being printed, shrinking, cracking. Solution?

This form really needs a "ban" feature.

 

Posted : 01/04/2021 2:58 pm
bobstro
(@bobstro)
Illustrious Member
RE: PETG Print crackling after being printed, shrinking, cracking. Solution?
Posted by: @dan-rogers

It's embarrassing.  I live near seattle.  A lot of seattle people are holier than though, quick to judge, and will throw a fire bomb at your house if you don't agree with them.  I try and avoid seattle.

Had to smile when I read this. There's nothing like getting a PM telling you to stop picking on Amazon by recommending buying supplies from smaller companies that directly support the 3D printing community because "Amazon is a big employer in Seattle". Was not expecting that one.

My notes and disclaimers on 3D printing and miscellaneous other tech projects
He is intelligent, but not experienced. His pattern indicates two dimensional thinking. -- Spock in Star Trek: The Wrath of Khan...
Posted : 01/04/2021 3:44 pm
SeattleDavid
(@seattledavid)
Estimable Member
Topic starter answered:
RE: PETG Print crackling after being printed, shrinking, cracking. Solution?

If you've decided already right after the first post to solve your problem different way, then it's perfectly fine. Just a simple "Thanks, solved it with a wood block" would've been a perfect answer.

I agree. But I hadn’t made that decision then.

Like many people, I waited to see if a better, simpler answer emerged.

If you read through the thread you will see I made clear when I started to decide to go in a more assured, simpler direction by using wood or 6061 aluminum. Then, it should have been apparent that building chambers and excessive experimentation wasn’t where I was headed. But apparently my turn signal wasn’t bright enough.

I was hoping there might be a simpler answer to the problem than a printer renovation project. Then, I tried to genuinely politely thank people for their input. But by that time the donkey either had blinders on or else was pointed in the opposite direction from the one I was headed in and again the turn signal wasn’t seen.

I understand that 3D printing is your passion. I understand old cars are some people’s passion. But not for me. Building things is my passion and I sell old cars that start to break down, not tinker with them.

 

This post was modified 8 months ago by SeattleDavid
Posted : 01/04/2021 4:49 pm
bobstro
(@bobstro)
Illustrious Member
RE: PETG Print crackling after being printed, shrinking, cracking. Solution?
Posted by: @seattledavid[...] 

I understand that 3D printing is your passion. I understand old cars are some people’s passion. But not for me. Building things is my passion and I sell old cars that start to break down, not tinker with them.

All of which is fine. But don't be surprised when you post in an old car forum asking for help, get answers, and people are less than enthusiastic when you reply with condescension and disdain. A simple "thanks, I think I'll try a board" instead of your belittling tirade about tape dispensers would have been just fine.

 

My notes and disclaimers on 3D printing and miscellaneous other tech projects
He is intelligent, but not experienced. His pattern indicates two dimensional thinking. -- Spock in Star Trek: The Wrath of Khan...
Posted : 01/04/2021 5:07 pm
Nikolai
(@nikolai)
Noble Member
RE: PETG Print crackling after being printed, shrinking, cracking. Solution?
Posted by: @seattledavid

I understand that 3D printing is your passion. I understand old cars are some people’s passion. But not for me. Building things is my passion and I sell old cars that start to break down, not tinker with them.

No passion involved here. 

Adjusting the temperature for the used filament/object is basic configuration. Putting a printer where there is not much ambient air flow, is also basic configuration. This belongs to the category knowing your tool and how to use it. You don't have to modify or do anything to your printer. For the warmer ambient air you could even use just a simple card box or plastic bag. No modifications, just use it properly.  

Often linked posts:
Going small with MMU2
Real Multi Material
My prints on Instagram...
Posted : 01/04/2021 5:07 pm
SeattleDavid
(@seattledavid)
Estimable Member
Topic starter answered:
RE: PETG Print crackling after being printed, shrinking, cracking. Solution?

For the record:

Swiss_Cheese stated on 3/31 at 2:47:

If your looking for a point and click make product button you haven't found one in FFF/FDM...
I would move on and find another solution

47 minutes later, at 2:47 I responded:

My expectation was only that if somebody had a quick solution ("Hey, I have seen that and you just need to kick the machine in this spot") that would be wonderful. I didn't expect that anybody would spend much time debugging this issue.

I have alternatives, namely, breaking it up into several pieces and making the backbone out of wood or aluminum.

So I was only hoping there was a well known, easy, straightforward known answer to this class of problem. That's all. Seems like it is a fiddly, complex problem...and knowing that is enough for me. I only need four of these brackets, and I can design a hybrid material design in less time than iterating this 18-hour print.

So you have helped me a lot to know that it's not a well known, simple, straightforward (or at least obvious) fix.

I think I politely made it clear that I was taking this advice and was "moving on".

I appreciated the advice but found that the proposed solution was unnecessarily complicated and I indicated that I was headed in a different direction. I then reiterated that I was going to use either wood of 6061 aluminum in a subsequent posting. I even expressed sincere, heartfelt appreciation for the input.

Those are the facts.

Posted : 01/04/2021 5:27 pm
SeattleDavid
(@seattledavid)
Estimable Member
Topic starter answered:
RE: PETG Print crackling after being printed, shrinking, cracking. Solution?
Posted by: @dan-rogers

This form really needs a "ban" feature.

 

While I wish he would just ignore my postings entirely, I am OK with bobstro remaining on the forum.

I do wish that he would ignore any subsequent postings I make. For whatever reason he tends to almost always be un-helpful when I post, and threads devolve like this one did. Others have sent me PM messages expressing frustration with bobstro, too, so I know I am not alone. This doesn't happen on other forums I use. I'm not saying he/she/it/they/them is a bad person, just that everybody would be better off if he/she/it/they/them didn't entangle on my inquiries.

bobstro seems to help some people and attack others. I haven't seen the pattern as to which mood will prevail.

 

Posted : 01/04/2021 5:33 pm
bobstro
(@bobstro)
Illustrious Member
RE: PETG Print crackling after being printed, shrinking, cracking. Solution?
Posted by: @seattledavid

While I wish he would just ignore my postings entirely, I am OK with bobstro remaining on the forum.

How generous of you! Thank you.

I do wish that he would ignore any subsequent postings I make. For whatever reason he tends to almost always be un-helpful when I post, and threads devolve like this one did.

The problem is when you respond with your condescending and insulting posts. I don't care one way or the other about you. I do care about the people you dismiss, demean, insult, and misinform over issues you claim not to care about. This thread is hardly the first instance where you have insisted on making a big deal about how above everything you are, and yet you're willing to devote time going on about the most inane issues.

Others have sent me PM messages expressing frustration with bobstro, too, so I know I am not alone. This doesn't happen on other forums I use. I'm not saying he/she/it/they/them is a bad person, just that everybody would be better off if he/she/it/they/them didn't entangle on my inquiries.

If you would refrain from making snide comments and dismissing the efforts of those trying to help you, there would be no problem to start with. This is the third instance (at least) in which I've given you the benefit of a doubt and replied as if I were unaware of your prior post history. I suggest anybody with an interest take a gander through your post history. It is quite revealing.

bobstro seems to help some people and attack others. I haven't seen the pattern as to which mood will prevail.

When you devolve a discussion into unhelpful comments about the formatting of copyright notices, I am not overly concerned.

 

My notes and disclaimers on 3D printing and miscellaneous other tech projects
He is intelligent, but not experienced. His pattern indicates two dimensional thinking. -- Spock in Star Trek: The Wrath of Khan...
Posted : 01/04/2021 6:05 pm
SeattleDavid
(@seattledavid)
Estimable Member
Topic starter answered:
RE: PETG Print crackling after being printed, shrinking, cracking. Solution?

Bobstro, so please just ignore my future postings and it will all go a lot smoother.

While we could endlessly debate how I (and others) find your comments and remarks to be unhelpful, it is best that you just let my questions hang, without editorial or the benefit of what you feel is "help". It is clear that we differ in our communications and information sharing styles and that your responses to my postings consistently devolves into this communication shrapnel. Without the "benefit" of your input on my problems in the future I think everything will be smoother. You can then quietly observe how much calmer things are.

I rarely seek complicated solutions. I am a prolific creator and a key to this is not getting stuck in a quagmire of complexity. When things get complex it consumes a lot of time that could be better spent going in another, simpler direction. So while you want to dawdle on complexities and have the expectation that to have the privilege of using a 3d printing machine you must be an expert at it, my view is entirely different. The more you "help" in your own style of delving into excessive details and criticizing the lack of expertise of the question asker, then degrading them for not wanting to become an expert in obscure nuances of 3d printing, the less productive the conversation becomes.

I shun excessive complexity, and I strive for simplicity. It is often enough for somebody to tell me that what I want to do is difficult and problematic. Knowing that I am in difficult technical territory is a sign that I should explore simpler alternatives.

Posted : 01/04/2021 6:52 pm
bobstro
(@bobstro)
Illustrious Member
RE: PETG Print crackling after being printed, shrinking, cracking. Solution?
Posted by: @seattledavid

Bobstro, so please just ignore my future postings and it will all go a lot smoother.

And I'm sure you'd be pleased. It doesn't work like that. This is not a personal chatline. Anything we post is seen by thousands, including people making an earnest effort to find solutions. Whether you have lost interest or not, it is the purpose of forums like this to allow users to share solutions to problems. You have no ownership of the topic. You are free, however, to not interpret my responses as directly intended for you.

While we could endlessly debate how I (and others) find your comments and remarks to be unhelpful, it is best that you just let my questions hang, without editorial or the benefit of what you feel is "help". It is clear that we differ in our communications and information sharing styles and that your responses to my postings consistently devolves into this communication shrapnel. Without the "benefit" of your input on my problems in the future I think everything will be smoother. You can then quietly observe how much calmer things are.

@Peter-M made an earnest effort to provide you with meaningful information. You are the one who chose to respond in a demeaning way.  You would do well to remember that this is an international community, and making fun of a fellow member's language skills is out of bounds, even if you don't understand their intent. There was no need to respond with anything like "... all of the other things you suggest sound to me like this". Many members of our community are quite competent, even if English is their second, third, or fourth language.

I rarely seek complicated solutions.

Indeed. I would agree that solutions do not seem to be your primary aim.

I am a prolific creator and a key to this is not getting stuck in a quagmire of complexity. When things get complex it consumes a lot of time that could be better spent going in another, simpler direction.

Then there's no reason to answer with equally complicated answers. Just acknowledge that you're after something simpler and move on.

So while you want to dawdle on complexities and have the expectation that to have the privilege of using a 3d printing machine you must be an expert at it, my view is entirely different. The more you "help" in your own style of delving into excessive details and criticizing the lack of expertise of the question asker, then degrading them for not wanting to become an expert in obscure nuances of 3d printing, the less productive the conversation becomes.

Copyright. Check the link.

I shun excessive complexity, and I strive for simplicity. It is often enough for somebody to tell me that what I want to do is difficult and problematic. Knowing that I am in difficult technical territory is a sign that I should explore simpler alternatives.

No argument there. Keep the discussion respectful and we have no issues. Good luck.

My notes and disclaimers on 3D printing and miscellaneous other tech projects
He is intelligent, but not experienced. His pattern indicates two dimensional thinking. -- Spock in Star Trek: The Wrath of Khan...
Posted : 01/04/2021 7:19 pm
SeattleDavid
(@seattledavid)
Estimable Member
Topic starter answered:
RE: PETG Print crackling after being printed, shrinking, cracking. Solution?

@bobstro:

  1. Please, you, and only you, refrain from responding to my future questions. That would be genuinely appreciated. All others are welcome.
  2. Peter-M had reasonable suggestions that were far more complicated than anything I was prepared to undertake. He did help my making clear that the solution is very possibly "complicated". I could have no idea he spoke any language other than English. 
  3. I personally find you, bobstro, to be quite dislikable on many levels and in many ways, and it could be mutual. Yet, we must co-exist on this forum from time-to-time. So please, allow the two of us to quietly co-exist.

Bobstro, thank you very much for the courtesy in the future of ignoring any future postings or questions from me. This is a formal request.

 

This post was modified 8 months ago by SeattleDavid
Posted : 01/04/2021 7:39 pm
3Delight
(@3delight)
Moderator
RE: PETG Print crackling after being printed, shrinking, cracking. Solution?

I am closing this topic as it has degenerated into personal arguments.  Please keep your posts on this forum civilised and on topic.  Personal attacks may result in a permanent ban, regardless of who started it.

Posted : 02/04/2021 1:01 am
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