Overhang for Makerbot headphone  

RE: Overhang for Makerbot headphone

Ok, I'll say it.

Your having curling issues with the filament your trying to print with, I don't know the specific's of the filament since you have given no information about it what so ever, and I couldn't tell you if your printing it to hot or to cool because I have no idea what filament it is, or what profile your using to print it. I can tell you that it is a well known model and it should print fine, But you have given me no information with which to offer any assistance.

It would help to know the maker / brand and possibly a link to the information about the filament, and it would really help if you could post a zipped up .3MF project file to show the settings you used in  Prusa slicer when trying to print it. it would help to know what model printer your using, ect,,

Please make an attempt to provide this information and someone can offer assistance.

if you need help gathering it we may also be able to assist with instructions.

Regards

Swiss_Cheese

RE: Overhang for Makerbot headphone

Hello,

Thank you for your feedback.

Actullay I used SUNLU Rainbow filament for this one.

I tried with a couple of other SUNLU colors and I got slightly better results, in particular with the black PLA+.

I tried also with the grey Prusament that comes with the printer. My printer is the i3 MK3 .

Rotating the model to have that specific overhang facing the fan blowing improved the result but I had to shrink down the model by 10% which is too bad.

In addition until the end of the overhang print, I reduced manually by 30% print speed to allow each layer to better cooldown .  Print temp was 190 deg and 60 for the bed.

I have my .gcode, would it work too? Bu it exceeds the max allowed size.

I am pretty  new on the subject so I am still ramping up.

Thanks a lot for your help.

RE: Overhang for Makerbot headphone

you need to be more specific about your filament, Sunlu has at the very least has 4 different kinds of rainbow filament probably more, its best if your very specific now, and any time your asking for help, filaments have a wide range of temp they can print in, and silk based filaments print different then non silk based and so on, so perhaps you can see how important it is to have accurate information about that so someone might offer assistance.

next, a g-code is meaningless not only meaningless but just a pain in the ass to look through, that is why I told you to post a .3mf, a .3mf is what you should provide so other users can view the settings you used and all the information is there relative to the setup of the printer, and the forum requires that it must be zipped up! this means, winzip, winrar, or 7zip, (Don't post the zipped file on some third party site, post it here through the Add Media button above the area you post messages, you can also post images there) and information that's not included in the .3mf such as ,the printer being in an enclosure, the specific filament used, the specific printer being used (if different from one in the standard profile), and any modification to the printer should also be conveyed via text during the request and frankly anything else you can think of so that people don't have to struggle and play 50 posts to find information to help you.

the fact is that it's probably something really simple, like you need to add more heat to the hot end, or the orientation of the part on the bed isn't good, but we aren't sitting there with you, and have absolutely no way to know, unless you tell us. so no one wants to help without good information.

I'm not trying to be a hard ass about this, but I feel I need to be blunt, this information will really help you now and with future requests from the community.

Regards

Swiss_Cheese

RE: Overhang for Makerbot headphone

Hello,

I fully agree you need to have as much info as possible to better tackle the issue.

The rainbow filament is the following one:

https://fr.aliexpress.com/item/4001061963653.html?spm=a2g0o.productlist.0.0.2ea6a61dc22fe7&algo_pvid=e001489c-1201-49b1-8982-147c72095454&algo_expid=e001489c-1201-49b1-8982-147c72095454-1&btsid=2100bb4916175255897663733e7600&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_

I may have had a bad batch or it is due to the "rainbow nature" of the filament but I was not happy overall with it.

As I said I did plenty of other tests, even with the filament from Prusa that comes with the printer.

Yesterday I had my best result ever with Black  PLA+ SUNLU filament :

https://fr.aliexpress.com/item/4001320302272.html?spm=a2g0s.9042311.0.0.27426c370CP3VN

Here is the result:

Here is the 3mf and the printer is  i3 MK3:

After all my tests here are my conclusions (good or bard I do not know ) to have the best latest result:

- printer is fully stock

- no enclosure

- room temp around 20 - 22degree

- I did cut the lower part of the model by 1mm to linit the overhang

- I had to orient the model to have the fan blowing on the overhang

- unfortunately I had to reduce the model on the Y axis for that

- reduce speed by 30% to complete the overhang part

- 3 perimeters

- perimeter overlap set at 50%

- infill 15%

- bed at 60 degree

- hot end at 190 degree ( I tried from 190 to 225 and did a temp tower for the filament it iwas ok)

- no support

As an info I have similar issue but very very less than the one you saw for the SUNLU rainbow silk filament for this model:

https://www.myminifactory.com/object/3d-print-skull-box-with-cranial-lid-83183

The issue occurs at the back of the model where the fan cannot directly blow ... I have no pics because I sanded it...

But would the fan be the key?

Thank you !