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Hi While printing bigger objects ( square shape ) I have noticed that support of the model is separating from the table. Anyone have a clue what might be the problem? Is this because of temperature differences? Let me know your comments. Thanks Szymon

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Hey Sajmon,

If when you say table you mean printer bed, then I may have an idea. The supports may be printed fine, but a similar effect to warping may take place. This means the warm plastic wants to push away from the cold printer bed. This causes a difference in internal stresses, causing certain part of the print to separate from the printer. Using a heated printer bed can help overcome this issue. As long as the print turns out okay overall, then you should have to change anything, but if it is try changing filament to one which doesn’t warp as much.

Hope this helps you out.

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Hi Thanks for your comments. By table I ment heated up platform on my zortax m200. I have cleaned aluminium top part of the platform with acetone. If there was some fat/sweat on the surface it also might cause separation of model’s support. We will see if it will help.

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That’s good to hear. If you need further help, then feel free to ask. I also use acetone for such instances as it is very effective.

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I have printed many big parts (around 19x19cm) without any significant problem… I use the covers to maintain the correct temperature. With z-ultrat you can print big parts without covers and problems !!

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I had that problem too. Solution: You need to turn your printer into an enclosed one… I just bought perspex and used magnets to hold it on to the sides and front of the printer and that works fine

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Hi Sajmon!

I had the same problem before. I tried to print in a square 190 X 190 mm.

In my case it was the raft not sticking to the bed.

I shut the fan down to zero.

It´s working perfect for me and my object.

Best regards/Svante

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Unscrew your perforated plate and clean the surface under it. Pierce some of the small perforated holes before screwing it back on. After that you can consider to recalibrate.

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Dear Szymon

I have a M200 too, with a 3 months of use and yes, certain objects, specially the big ones with shapes and thin edges have that trouble. My little advice to avoid that is try to prevent biggest changes in temp with the exterior to the interior of your printer. I have the lateral covers but also with the covers not enough in the most colds months of the year, i.e. the past december I need to cover also upside the top of the printer with a kind ok greenhouse plastic cus the temperature make big changes in the edges warping.

I hope this could help you and also help us who have a m200 too.

P.D. This is a piece I printed that warp in one corner: https://www.instagram.com/p/BC3av-OMWMy/?taken-by=cadsurfer

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Dear Szymon

You can use abs_sluts (abs + acetone) and smear it on the white hot plate.
Do not use ABS material because it has 4% shrinkage.
Hips 1% glass and 0.5%.

Hans

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It seems that you falled in a typical problem called warping and this is due to the material shrinking.

To avoid this you you have some options, and the most common and easier are:

- keep the printer area warm: this can be achieved using the side covers and printing in a warm room. I solved some problems in long prints keeping the room heating ON during the night.

- Use a less shrinking material like Z-HIPS. If ABS is needed try with Z-ULTRAT that shrinks less (it costs more but it is better).

Try with these 2 solution first: in most cases they work.

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We had this issue a few times with large area prints. The solution that works every time for us is to rub a glue stick over the entire print area (avoiding the 5 metal contact squares). This provides just enough extra stickiness to prevent warping.