PLA dont stick
I just received my Prusa... but the "tree frog" dont stick, the initial line with filament looks great and stick on but when it moves to the center and starts print the frog it the filament dont stick to the table. I have done the calibration, everything ok.
Re: PLA dont stick
can you sent pictures of the first layer please
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Re: PLA dont stick
Normally very simple. First layer must be good and bed must be clean. Some of the contaminants that affect bed adhesion are not visible so your bed may look perfect but could still be contaminated.
I use a strong detergent for cleaning the bed but I am in the minority. Pure Acetone seems to be the favorite.
My bed adhesion is amazing with PLA. Absolutely no chance of it coming loose during a print. I spent a lot of time getting the first layer dialed in and I am meticulous with the cleaning. Never ever touch the bed with your fingers either.
Re: PLA dont stick
Thanks for the answers..:)
I will clean the bed (not the table) with aceton to begin with and check it out again... I got a i3 MK2 ready out of the box. If I want to print something from the SD card that came with the printer, lets say the tree frog is there any more I should do when it comes to adjustment?
The first line the printer writes on left near corner to begin with it is just perfect but as soon as it moves to the center i just want stick...
/Torry
Re: PLA dont stick
yeah.... the little treefrog is the best thing to check if your 1st layer setting (live z-adjust value) is right.
when you did the setup using the v2calibration.gcode only, i'm not surprised that it doesn't stick.
have a look at this thread and follow the instructions to find the perfect 1st layer setting.
dem inscheniör is' nix zu schwör...
Re: PLA dont stick
Hi guys.
I am getting there... cleaned the bed with aceton.. used the calibration square (recommended thread) adjusted the Z axis live. The square looks ok, but the downside does not get the smooth flat surface, not enough negative z-axis i guess
but what about speed and flow ? If I am printing the tree frog from the bundled card. should I leave the flow and speed setting as defaulted or can that also help increasing the quality of the print?
Re: PLA dont stick
First Layer calibration is VERY important.
I also may have found a bug in the firmware compared to what the manual says, so I would suggest reading my post as that may help you nail down your first layer calibration.
Re: PLA dont stick
If you have a set of vernier calipers to measure the thickness of the first layer when you calibrate then it makes it much easier to set up. If you don't have a set of calipers I would say get a set. Not to expensive. You will be able to get the first layer perfect if you have calipers.
Re: PLA dont stick
I also may have found a bug in the firmware compared to what the manual says, so I would suggest reading my post as that may help you nail down your first layer calibration.
Just so you know this is not a bug in the firmware, just wrong wording in the manual. It has been this way since the MK2 was released. Don't know why the manual hasn't been adjusted.
Re: PLA dont stick
Just so you know this is not a bug in the firmware, just wrong wording in the manual. It has been this way since the MK2 was released. Don't know why the manual hasn't been adjusted.
Thanks for correcting me... wasn't sure if it was a bug or the manual, so I shall call it a bug in the manual. 😆