<p>I am having some trouble with model adherence to my print bed. As shown in the attached photo, my model is pulled away at the sides leaving it bowed even though it is designed to be flat. Other than this &quot;bowing&quot;, the model is of good quality.</p>
<p>The model is printed solid on an Anycubic Photon M3 Plus with Anycubic 3D Printing UV Sensitive Resin. My print settings are:</p>
<ul>
<li>Bottom layer count: 6</li>
<li>Bottom layer exposure: 22 secs (also tried 30 secs and 40 secs with the same results)</li>
<li>Normal layer height: 0.05 mm</li>
<li>Normal layer exposure: 2.5 secs</li>
<li>Off time: 0.5 secs</li>
<li>Z lift height: 6 mm</li>
<li>Z lift speed : 360 mm/sec</li>
<li>Z lift retract: 6 mm</li>
</ul>
<p>The bed is aligned. Could anyone suggest what is wrong and what I could try to remove this &quot;bowing&quot; effect?</p>
<p><a href="https://i.stack.imgur.com/VmF9H.jpg" rel="nofollow noreferrer" title="Resin printed model with a bowing effect"><img src="https://i.stack.imgur.com/VmF9H.jpg" alt="Resin printed model with a bowing effect" title="Resin printed model with a bowing effect" /></a></p>

[{'answer_id': 19925, 'author': 'Trish', 'author_id': 8884, 'author_profile': 'https://3dprinting.stackexchange.com/users/8884', 'pm_score': 2, 'selected': False, 'text': "<h2>Print orientation</h2>\n<p>Your model is pulled up from the FEP film with a huge force. It releases from the film first at the corners, then progresses to the center. The force bends the model down as it is still flexible, so it creates a bent item.</p>\n<p>This can be mitigated by reducing the area that you pull at. Commonly, you'll turn the item so the area is minimized, and you also might want to angle the item. This will cost some material in support structure, but you reduce the force on the part that can deform it in printing.</p>\n"}, {'answer_id': 19929, 'author': 'Aaargh Zombies', 'author_id': 29097, 'author_profile': 'https://3dprinting.stackexchange.com/users/29097', 'pm_score': 2, 'selected': True, 'text': "<p>It looks like the top of your model (The lowest part in the picture) is wider than the bottom (The part in contact with the build plate).</p>\n<p>This means that there is a substantial lip with nothing under it to support it, or to attach it to the build plate.</p>\n<p>If I remember my rules of force correctly (and I may not) this means that the force excerpted on the part of the object furthest from the build plate is the square of the force on the part nearest to it that's touching the build plate.</p>\n<p>By 3D printing standards this is quite a big number. You either need to angle the model to reduce this force (Draw a triangle from the corner to the big touching the base plate, and angle it so that the triangle is as shallow as possible, or to add additional material in to make that angle as shallow as possible.</p>\n<p>I would suggest that you don't place your model flat on the build plate, instead angle it at maybe 30 and use heavy supports.</p>\n"}]
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