Topic: Warped corner
I am printing flat boxes that are generally large - 5.5x4. Recently I am getting one corner that really warps upward - see files. What is causing this, and how could I fix it?
2 2018-05-19 22:26:11 (edited by david.tucker 2018-05-19 22:28:19)
Re: Warped corner
The print is pealing up from the build plate. If you have a heated bed then turn up the heat a bit. Otherwise try to put the printer in a warm room with no draft and hope for the best.
Either way you can play around to try and get the print to sick to the bed better. You can turn on a brim to give more surface area to the print, use a clue stick/tape/buildtack/etc. Clean the bed with alcohol to remove any residue. And if nothing else works then experiment with raising or lowering the z-offset a bit. If the z-offset is too high then the first layer won't stick, but if it is too low then you get underextrusion and again it won't stick.
Personally on my mini I have really struggled with this, because it lacks a heated bed. I put down a sheet of buildtack that I clean with alcohol between prints (no need for glue). I put a brim on almost all prints, and I have spent some time tweaking my z-offset up and down. Using this combo I can minimize the warping, but it is not perfect.
I experimented with printing in a small room, adding a cooling fan, adding a space heater, and printing with a box over the whole thing. None of those seemed to help me out, but maybe they will help you.
One more thing, the build tack works quite well but it can be hard to get prints off of it. For that I got a very thin paint spatula that is about 3/4" wide and 5" long with a rounded tip and fairly flexible. I can work that under almost anything without damaging the build tack and it is much easier to pry prints off than with the included paint scraper.
- Tin Falcon
- Member
- Offline
Re: Warped corner
there are a number of factors that cause this.
what material are you using
I print on glass with hairspray. A bit old school but it works and is economical.
1) make sure your bed is level and z high is correct you should be able to slip a piece of card stock under the nozzle at the 4 corners and center of the bed,
2) use the recommended bed temp for your material.
use something to help the print stick .
as the previous poster mentioned build tack is a good choice. or if using glass glue stick or hair spray.
another option is blue painters tape.
Almost every material prints best on a different surface so check manufactures recommendations.
Soliddoodle 4 stock w glass bed------Folger Tech Prusa 2020 upgraded to and titan /aero extruder mirror bed
FT5 with titan/ E3D Aero------MP mini select w glass bed
MP Utimate maker pro-W bondtech extruder
Marlin/Repetier Host/ Slic3r and Cura
FT5 with titan/ E3D Aero------MP mini select w glass bed
MP Utimate maker pro-W bondtech extruder
Marlin/Repetier Host/ Slic3r and Cura
Re: Warped corner
david.tucker wrote:
The print is pealing up...
Just wanted to say David, thanks for the EXCELLENT and well-written answer. (Honestly, it was one of the best answers for anything I've ever received!)
I have a da Vinci mini with no heated bed, like you, so it's a bit of a task - yes. Really its what you say - getting that middle window between too much stickiness and not enough stickiness.
Since I live in a hotter area (Nashville), my AC is running more and my mini gets thsi cool air, so I covered it a bit to start off. After trying various things such as various Z-Offests, and working with the printer driver options, I think I've found my medium. I use blue painters tape and glue stick the corner areas that weren't sticking. I also reapply new tape for each run, because otherwise the tape bubbles up underneath because the first run "melts' the adhesive, at least on the tape I got.
Admittedly my jobs are harder because the larger area being printed on first layer (bottom on the bed), so I can see why the corners were being affected. Your post really helped because it points out that everyone has to have their own solution because of differing environments, differing jobs, and of course different printers.