# SM2 A350 printing bed bends so much printing fails **URL:** \ **Category:** Snapmaker 2.0 (3-in-1)\ **Created:** [August 6, 2020, 2:12pm UTC](https://forum.snapmaker.com/t/sm2-a350-printing-bed-bends-so-much-printing-fails/8121 "2020-08-06T14:12:06Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![Letho](https://avatars.discourse-cdn.com/v4/letter/l/51bf81/32.png) [@Letho](https://forum.snapmaker.com/u/Letho)\ **Post date:** [August 6, 2020, 2:12pm UTC](https://forum.snapmaker.com/t/sm2-a350-printing-bed-bends-so-much-printing-fails/8121/1 "2020-08-06T14:12:06Z")
Hey there, We used our brand new SnapMaker2 A350 for some tests and it was pretty good for results. I wanted to test a sligtly bigger object en we had a serious fail in the printbed! Upon inspection we saw that the heating bed was seriously bended, see photos. I think the aluminum has expanded during the heatup and moves the printboard outward. I am very shocked by this and do not really know what to do about this. The print was a base of 100mm circle 3 mm thick Please help! Letho ![20200806_154657](https://us1.discourse-cdn.com/flex022/uploads/snapmaker/original/2X/c/c068043d43c1e5ff833f651c72383e1eaebea7c5.jpeg) ---
**Author:** ![Letho](https://avatars.discourse-cdn.com/v4/letter/l/51bf81/32.png) [@Letho](https://forum.snapmaker.com/u/Letho)\ **Post date:** [August 6, 2020, 2:14pm UTC](https://forum.snapmaker.com/t/sm2-a350-printing-bed-bends-so-much-printing-fails/8121/4 "2020-08-06T14:14:21Z")
![20200806_154637optimized](https://us1.discourse-cdn.com/flex022/uploads/snapmaker/original/2X/b/bf46409de59efd0eea57c33c7b3a27dd914d345d.jpeg) ---
**Author:** ![Letho](https://avatars.discourse-cdn.com/v4/letter/l/51bf81/32.png) [@Letho](https://forum.snapmaker.com/u/Letho)\ **Post date:** [August 6, 2020, 2:14pm UTC](https://forum.snapmaker.com/t/sm2-a350-printing-bed-bends-so-much-printing-fails/8121/5 "2020-08-06T14:14:54Z")
![20200806_154722optimized](https://us1.discourse-cdn.com/flex022/uploads/snapmaker/original/2X/0/08320f7fb2d61cfe6f81c37c839c58f5a6b920ca.jpeg) ---
**Author:** ![Letho](https://avatars.discourse-cdn.com/v4/letter/l/51bf81/32.png) [@Letho](https://forum.snapmaker.com/u/Letho)\ **Post date:** [August 6, 2020, 2:15pm UTC](https://forum.snapmaker.com/t/sm2-a350-printing-bed-bends-so-much-printing-fails/8121/6 "2020-08-06T14:15:31Z")
![20200806_154706optimized](https://us1.discourse-cdn.com/flex022/uploads/snapmaker/original/2X/8/87bf2d5a038ef34744e7631ae5864ad2dc4bf7df.jpeg) ---
**Author:** ![Letho](https://avatars.discourse-cdn.com/v4/letter/l/51bf81/32.png) [@Letho](https://forum.snapmaker.com/u/Letho)\ **Post date:** [August 6, 2020, 2:17pm UTC](https://forum.snapmaker.com/t/sm2-a350-printing-bed-bends-so-much-printing-fails/8121/7 "2020-08-06T14:17:04Z")
Sorry for the multi post (I can currently only post one picture per post) These pictures are taken 4 minutes after shutting down the SnapMaker. The bend was very noticeable be the naked eye but faded quickly once the bed was cooling. ---
**Author:** ![khyeung](https://avatars.discourse-cdn.com/v4/letter/k/9dc877/32.png) [@khyeung](https://forum.snapmaker.com/u/khyeung)\ **Post date:** [August 6, 2020, 2:35pm UTC](https://forum.snapmaker.com/t/sm2-a350-printing-bed-bends-so-much-printing-fails/8121/8 "2020-08-06T14:35:31Z")
your carriage is upside down… the threaded nut must face downward. Double check the manual for a more clear picture ---
**Author:** ![Letho](https://avatars.discourse-cdn.com/v4/letter/l/51bf81/32.png) [@Letho](https://forum.snapmaker.com/u/Letho)\ **Post date:** [August 6, 2020, 3:58pm UTC](https://forum.snapmaker.com/t/sm2-a350-printing-bed-bends-so-much-printing-fails/8121/9 "2020-08-06T15:58:15Z")
That would explain allot! Thanks I would never have seen that. Hero!!