<p>I was wondering if anyone could give me tips for designing a 3d printable structure that can "pinch" down onto a hockey puck shaped piece and hold it tightly. </p>

<p>I'd like for the structure to normally want to "pinch" two edges together, but I can pry/force them open when I shove the hockey puck into it. Once I let go, the two ends are now holding the puck fairly tightly.</p>

<p>My first thought was something like a potato chip bag clip, but that would require a couple pieces and a spring.</p>

<p>Is there a way to do something like this with one solid piece?</p>

[{'answer_id': 2734, 'author': 'darth pixel', 'author_id': 1211, 'author_profile': 'https://3dprinting.stackexchange.com/users/1211', 'pm_score': 2, 'selected': False, 'text': '<p>Here are first 3 the most simplified and generalized options you have:</p>\n\n<p><a href="https://i.stack.imgur.com/XmHnf.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/XmHnf.png" alt="enter image description here"></a></p>\n\n<p>All you need now is to give use more details about your needs. If you reveal more details we could help you to apply (and modify) one of these  options.</p>\n\n<p>Each of above has its own pros and cons of course. You said you don\'t want to have spring... so maybe a rubber ;)\nBut in fact whole-red is one-piece-clip in which the force comes from material elesticity or stiffness.</p>\n\n<p>Please tell me what is the application of such clip.</p>\n'}, {'answer_id': 2764, 'author': 'shlady', 'author_id': 4181, 'author_profile': 'https://3dprinting.stackexchange.com/users/4181', 'pm_score': 0, 'selected': False, 'text': "<p>If you are looking for a solid piece, the red one darth pixel showed is the best. An important consideration for something like this is making sure that it is able to flex outwards around the puck without fracturing. In order to keep the stress low in the arms, you can reduce the stiffness by either:</p>\n\n<ul>\n<li>Increasing the length of the arm</li>\n<li>Decreasing the thickness of the arm in the direction it deflects</li>\n</ul>\n\n<p>This might be helpful in designing it to be printed. If your part breaks when inserting the puck, make the arms longer or thinner. If you aren't getting enough force, the in-plane thickness (coming out of your computer screen) can be thickened to your heart's content without changing the stress.</p>\n"}]
['https://3dprinting.stackexchange.com/questions/2733', 'https://3dprinting.stackexchange.com', 'https://3dprinting.stackexchange.com/users/4086/']