RE: Trouble with this print on overhangs. Organic angles without support (38 Degrees overhang) AND toruble WITH support too?!..why?
@robin-2
Nice design, it looks like a fun project, I was guessing at how it might all go together,( I got pretty close 😉) I like the way you designed the snap-lock, I'll give it a print after we get this helix area figured out for you.
I can test with Prusament PETG, however I have other obligations before I can run them, so hold off on that for a bit and test the PLA from your friend. Petg will change support settings, temps, speeds, and cooling and will need a fair bit of adjusting compared to PLA. I did notice in your new assembled images that the overhangs (the arms that hold the phone) don't look very clean, do you have a filament dryer? A real one not one of the SUNLU style ones. Something like a PrintDry system? (food dehydrator style) if so, I strongly recommend drying your filament.
Regards
Swiss_Cheese
The Filament Whisperer
RE: Trouble with this print on overhangs. Organic angles without support (38 Degrees overhang) AND toruble WITH support too?!..why?
No don't have one. I have been considering this for a while but will bite the bullet and get it. I didn't think I needed it because the humidity in my house is relatively low (40%) and I haven't seen problems which I thought were associated with "wet" filament or with printing until this project. I have been printing other things during this troubleshooting and haven't had any issues. I have been storing the filament I'm not using in the 'ziplock' bags they come in, with the silica baggies inside.
RE: Trouble with this print on overhangs. Organic angles without support (38 Degrees overhang) AND toruble WITH support too?!..why?
And the results are in. It looks like the other brand of PLA is printing significantly better. I did the blue one as the helix only because I didn't have very much. The initial pictures with stringing are straight off the bed. I hit it with some heat to clean it up. The white was not post-processed at all.
The Blue PLA is Econofil with target nozzle temp 190-230C.
The White PLA is the original which comes with an Ender, and was still in original packaging. No target temps written on it.
RE: Trouble with this print on overhangs. Organic angles without support (38 Degrees overhang) AND toruble WITH support too?!..why?
@Swiss_cheese,
I have been trying to recreate all your settings from scratch. How did you make the angled support in prusa? I can't find any way to cut a box except to add a negative volume box, but it doesn't appear you did that.
RE: Trouble with this print on overhangs. Organic angles without support (38 Degrees overhang) AND toruble WITH support too?!..why?
@robin-2
This really simple to do, I added a box to the build surface, it's an object, not a part added to another object. that way you have access to all the tools available to an Object, (Cut) for example.
Click on an empty spot on the build surface making sure no other objects are highlighted, then right click and select "add shape" (Box). navigate to the Object manipulation pane and click on the little lock icon, it should turn orange and open up, allowing for non-uniform scaling. next select the scale gizmo and scale the box to your liking, either with the gizmo handles or the type in available in the object manipulation pane. once you have the scale the way you want it select the rotate gizmo and rotate the box 45° on the X or Y, whichever suits you. now you can select the Cut tool gizmo place it and make the cut. once the part is cut you will want to merge it with the main object, this is done by selecting both Objects right clicking on one or the other and select Merge from the menu. A new object will be created named Merged and each of the original objects will now be available as parts and can be selected individually by clicking on them in the sidebar menu.
The reason for merging them in this case, is that we get a higher level of respect from the support enforcers, supports applied to the model will view the added part as a stopping point, however as an object it will try to support under and around it.
It takes longer to type it out then it does to do.
I hope this helps,
Swiss_Cheese
The Filament Whisperer
RE: Trouble with this print on overhangs. Organic angles without support (38 Degrees overhang) AND toruble WITH support too?!..why?
Looks like the blue filament is wet, and the white filament wasn't. both printed very nicely. I read your post about RH and 40% isn't bad for us humans, but over time it will get the filament, I live northern California, our average for most of the year is in the 30-ish% range. It can be 50% during the rainy season, if we have one. While I find I can leave my PLA's and PETG filaments out in the wild for a bit without to much quality loss, it effects the print quality, I now own 3 PrintDry systems and Don't need to worry about moisture anymore even when printing nylon. About 85% of the time I run my filament right out of the Printdry while printing, and 100% of the time for PC, Nylon,TPU's and a couple others.
A valid Food dehydrator style Dryer 350watts or more is money well spent if you plan to continue printing, My first is 5 years old and still doing it's job.
The SUNLU style ones and the like, are little more then powered dry boxes. Dry boxes don't dry filament, they only keep filament that was already dry, dry.
Regards
Swiss_Cheese
The Filament Whisperer
RE:
The reason for merging them in this case, is that we get a higher level of respect from the support enforcers, supports applied to the model will view the added part as a stopping point, however as an object it will try to support under and around it.
This is exactly what happened when I tried to add an angled support box (without the cut on the top because I couldn't figure out how you did that at the time). Thank you for the detailed instructions!
And from the other post too on how to replace a model to keep settings. How to replace a model and keep PrusaSlicer settings etc.
I had tried what was mentioned there but PrusaSlicer was giving an error. It may be because I changed the file-name. I will experiment a bit more.
I now own 3 PrintDry systems
Do you keep 100% of your filament in these, or do you dry them, and then keep in a bag? I've just started printing, and already have 11 spools. It would get quite pricey to keep everything in a drier.
And Finally:
What do you think is going on with the Prusament PLA? Is this simply temperature related, or is the filament needing drying?
RE: Trouble with this print on overhangs. Organic angles without support (38 Degrees overhang) AND toruble WITH support too?!..why?
@robin-2
I store mine like this, Please see the following linked thread.
Because my Library of filament "just at my house" looks like this.
(These are old images, The library has grown.)
I own 3 Prusa printers in the MK3 series. One that I use specifically for helping out here, and for personal experiments. Each has a PrintDry Pro next to it, If I didn't print as much as I do, and use the types of filaments I do, I could have gotten away with one, however many of the filaments I work with have to be kept dry while they're being printed. Regardless of whether they require drying while printing or not, all my filaments benefit from the dryer. I'll take the amount from a spool for a project and re-spool it for use, (commonly 200 to 400 grams) and vacuum seal the rest of the original spool for storage, it keeps for years and it's as new when I need it again. if I suspect a roll is damp, I put it in the dryer before storage then seal it up. on average it is dried to 16% RH, well that's as low as my gauge goes anyway.
Most of this is covered in the thread I linked.
What do you think is going on with the Prusament PLA? Is this simply temperature related, or is the filament needing drying?
I think it needs drying, I could write a paper on how I know this. "But" in the images your showing, I'm seeing signs of wet filament, sometimes these same signs can be caused by to much heat (printing a filament to hot), or other poor slicer settings, but we addressed that to my satisfaction at least, when you printed with the file I set up. (as long as you didn't change anything) I've had people I was trying to help do that before, it's detrimental to the cause. I didn't get the impression that you did.
I'm not trying to get you to buy something your not ready to buy, but I will tell you I have not once regretted getting my filament dryers, and if I could only give one piece of advice about that, it would be, don't waste your time and money on a cheap one. (Cheap meaning Crappy)
Relative to the model replacement, keep all those methods mentioned in your back pocket, PrusaSlicer can be quirky, however you will get a feel for things, and those that didn't work for you this time, could become useful in the future.
Regards
Swiss_Cheese
The Filament Whisperer
RE:
My god. I have so many questions about this reply lol. I think it deserves it's own thread so I can avoid hijacking OP's further lol.
edit:Nevermind. It appears as usual, Swiss_Cheese was ahead of the game, and provided a link to said thread, already well established and full of helpful info.
@robin-2
I store mine like this, Please see the following linked thread.
Because my Library of filament "just at my house" looks like this.
(These are old images, The library has grown.)
I own 3 Prusa printers in the MK3 series. One that I use specifically for helping out here, and for personal experiments. Each has a PrintDry Pro next to it, If I didn't print as much as I do, and use the types of filaments I do, I could have gotten away with one, however many of the filaments I work with have to be kept dry while they're being printed. Regardless of whether they require drying while printing or not, all my filaments benefit from the dryer. I'll take the amount from a spool for a project and re-spool it for use, (commonly 200 to 400 grams) and vacuum seal the rest of the original spool for storage, it keeps for years and it's as new when I need it again. if I suspect a roll is damp, I put it in the dryer before storage then seal it up. on average it is dried to 16% RH, well that's as low as my gauge goes anyway.
Most of this is covered in the thread I linked.
What do you think is going on with the Prusament PLA? Is this simply temperature related, or is the filament needing drying?
I think it needs drying, I could write a paper on how I know this. "But" in the images your showing, I'm seeing signs of wet filament, sometimes these same signs can be caused by to much heat (printing a filament to hot), or other poor slicer settings, but we addressed that to my satisfaction at least, when you printed with the file I set up. (as long as you didn't change anything) I've had people I was trying to help do that before, it's detrimental to the cause. I didn't get the impression that you did.
I'm not trying to get you to buy something your not ready to buy, but I will tell you I have not once regretted getting my filament dryers, and if I could only give one piece of advice about that, it would be, don't waste your time and money on a cheap one. (Cheap meaning Crappy)
Relative to the model replacement, keep all those methods mentioned in your back pocket, PrusaSlicer can be quirky, however you will get a feel for things, and those that didn't work for you this time, could become useful in the future.
Regards
Swiss_Cheese
RE: Trouble with this print on overhangs. Organic angles without support (38 Degrees overhang) AND toruble WITH support too?!..why?
@robin-2
Did you get this sorted? Did you try drying your filament? how did this end? did yo give up and move on?
Regards
Swiss_Cheese
The Filament Whisperer
RE: Trouble with this print on overhangs. Organic angles without support (38 Degrees overhang) AND toruble WITH support too?!..why?
Hi Unfortunately I have been swamped with family visiting the last month due to a family loss. Haven't had time to look at dryers. Hoping to get back to this soon.
RE: Trouble with this print on overhangs. Organic angles without support (38 Degrees overhang) AND toruble WITH support too?!..why?
@robin-2
I'm sorry to hear of your loss, of course take all the time you need, I was only curious to know how things went.
Best wishes, until your return.
Swiss_Cheese
The Filament Whisperer
RE: Trouble with this print on overhangs. Organic angles without support (38 Degrees overhang) AND toruble WITH support too?!..why?
FYI, Just ordered a print dry dryer. Will test this out again once it arrives.
RE: Trouble with this print on overhangs. Organic angles without support (38 Degrees overhang) AND toruble WITH support too?!..why?
👍
The Filament Whisperer