Designing an element in 3D - battery cover including 2 materials - gasket  - Page 1
Forum section: electronics / general

author: max-bit
author_rank: Frequent Contributor
timestamp: December 01, 2024, 04:46:53 pm
content: Designing an element in 3D - battery coverI need someoneto transfer such an element to the world of 3D printing:This is a battery cover, for the Isatponhe Pro (inmarsat) satellite phoneUnfortunately, this item is no longer available for purchase and this item is often damaged.The phones are still fully functional. Unfortunately, the lack of parts is a big problem.I will give you the dimensions item (and more picture)The question is whether it is possible to combine 2 materials in 3D printing? There should be rubber on the edge of the container - a seal. (is there such a material at all?)If anyone can help, please write to me privately or hereand we will come to an agreement.I do not design nor do I have a 3D printer.

author: Coordonnée_chromatique
author_rank: Frequent Contributor
timestamp: December 01, 2024, 05:41:05 pm
content: Quote from: max-bit on December 01, 2024, 04:46:53 pmThis part is designed to be mounted in another one and you don't have any technical drawing... we will go nowhere without the casing in order to mesure it and test the prototypes.

author: max-bit
author_rank: Frequent Contributor
timestamp: December 01, 2024, 05:57:37 pm
content: I have a case/cover (I wrote that I can provide dimensions and more photos)

author: Coordonnée_chromatique
author_rank: Frequent Contributor
timestamp: December 02, 2024, 07:18:57 pm
content: The battery holder is clipped on the case and it requires a very precise adjustement between the tho parts, the manufacturer adjustement is unknown if you don't have its drawings.A reverse engineering requires to have the parts at hand in order to find the right adjustements with some experiments, it is the only way to go unless you have the acess to a CMM measurement machineANDan good plasturgist.

author: max-bit
author_rank: Frequent Contributor
timestamp: December 03, 2024, 06:56:32 am
content: What you wrote is all correct.Unfortunately, in the current case there is no way out.Part, I have it one.Two, the element must be made based on what have...

author: ejeffrey
author_rank: Super Contributor
timestamp: December 03, 2024, 04:13:42 pm
content: You can probably make a replacement that fits. You will need to take the best measurements you can and it will probably take several tries to get it dialed in. First try without any gasket or retaining clips until you get something that fits perfectly. Then add those features. Use an off the shelf cut to shape gasket material or o-ring if you can rather than 3d printing it.

author: Coordonnée_chromatique
author_rank: Frequent Contributor
timestamp: December 03, 2024, 05:57:35 pm
content: Quote from: max-bit on December 03, 2024, 06:56:32 amGlue flat N52 magnets in the case and design the cover you want with the same magnets inside.

author: Infraviolet
author_rank: Super Contributor
timestamp: December 04, 2024, 03:43:03 am
content: Fancier printers can do dual material, usually for a support strut material (either very mechanically weak or soluble in water) and the model material, but it isn't impossible in theory for one material to be rigid and the other ubbery. In practice though the common rubbery material (TPU) has a habit of utterly refusing to adhere at all to the common rigid materials (PLA,PETG,ABS).The best answer here is to print the rigid bit and either use narrow strips of rubber placed in to a designed-in groove, or otherwise consider whether layering up a rubberised paint (they exist for improving grip on floor decking) could make the rubber edges you want.I don't know how the prices are for them in Poland, but in the UK a basic printer (adequate for single material jobs with not terribly high precision, and not particularly large or particularly featuring in very slender or weakly supported geometries) can be <£250 (Creality CR20-pro for example). And CAD of some form or another, whichever type of software package you choose to learn, is a useful skill to develop.

author: Coordonnée_chromatique
author_rank: Frequent Contributor
timestamp: December 07, 2024, 08:55:32 am
content: Quote from: Infraviolet on December 04, 2024, 03:43:03 amThis kind of part is at the hardcore level to design and to produce with a low cost FDM, this guy is probably enough intelligent to consider that he have another things to do in life than being a FDM plasturgist virtuoso.