Clip for Freezer Bags with Expiration Date

Introduction 

This product solves a need I've always had, the labels with the expiration date I put on the Freezer bags with sticker labs, fall. Let's say the environment inside a freezer is not sticker-friendly.

Writing on the bags is a good option, however I only remember it after I already put the food inside the bag... :)

This will be the second version of these clips(there will be a third and the first can be found here on printables.com), with expiration date that I will offer to my club members, I know that they you are probably waiting for more things for the bambulabs printer, this is something I did for myself, and thought it would be interesting to share.

This clip that you can use in freezing, is quite robust with zone with self-centered hinges and suspended through cones. An idea that is not new, but I don't know if anyone has ever explored this in 3D printing (it is possible that someone did, but I did not find it).

The rotating dials, transports us to an earlier time, but I find them interesting, they are indexed and if you choose to produce in a more Brittle material, they produce a very satisfying click ;)

You can find a 3mf file with the painted numerals, and already configured for printers with AMS, however, you can print them in single color, as they are deep and perfectly visible.

Thus, and in addition to the functional interest of the product, it is also a technical aspect to explore, with small nuggets that you can find if you want to view the model in detail, there where necessary for the "print in place", that I want for fast printing.

Some people find interesting the thinking process, for that reason I leave here my sketches, some are just ramblings, but that's how I do things initially, I don't use CAD at this stage.

and this sketch ended on this over-engineered plastic-bag clip ;)

Print information

• This model was designed for "print in place", the adjustments were made in such a way that no changes in the printing parameters were necessary. As there are bridge zones, cooling and speed (slow) is important in those zones, if your printer has complementary ventilation place the parts near that area.

• That said, I was able to print this part with default parameters with a layer of 0.2mm (maximum).
• There is only one body that will need support structures, the front hook, could avoid with another type of design, but this was the one that seemed to me more robust.

• I was careful to divide them into multiple bodies so that you could color the pieces to your liking. 
• Do not try to print this disassembled, it will be impossible to assemble ...
• Tested with PLA but should work with other material (Except TPU's and similar)
  • Very low temperatures turn material less ductile, then more brittle (-20ºC and lower) 
• For the rotating dials, nothing special, print as usual.

Use

1. Remove support structure from the hook, if the clip does not open right away, inserte a knife between the t parts of the clip and force it a little (be careful, maybe it's better to use some spatula that does not cut you… ).
2. In some cases, the hinge may be locked, if that happen to you be gentle and user players as shown on the picture bellow, Twist to the right and left a couple of times increasing the torque progressively, it should snap.
   1. Some old printers or not very well assembled may not be able to print this, but you can always try, who knows …. :) 

I hope you enjoy it, but above all that it is useful to you

Thank you for you support: Jorge Rui