- Thicker and wider gasket
- New mounting cleat system
- No changes to the overall dimensions of the case
- Available in 6U, 9U and 12U deep sizes
20 Bin Gridfinity Box For Stuff v2.3 on MakerWorld and Printables
It took way too long, but the 20bin Gridfinity BoxForStuff is finally updated to version 2.3. The updated design has the following improvements:
20 Bin Gridfinity Box For Stuff v2.3 on MakerWorld and Printables
0 Comments
I posted a remix of SalsaVerdeByTheGlass's awesome "Rack for BFS - 20 Bin" over on MakerWorld. I've been using the original design to hold some of my 6U tall cases, but I needed something for the taller 9U and 12U cases. There are a few extras included in the remix as well, including some untested 4U and 6U extensions, and some wall clips (not for hanging the racks though). the rack is very handy to keep all the BFS prototypes organized (an organizer for my organizers lol).
You can find the racks over on MakerWorld and Printables. Thanks again to SalsaVerdeByTheGlass for the awesome rack (remix), which was the basis of my remix. I designed a wall mount and pen holder, designed for a Staples 11x14 whiteboard. It uses four 6x3 cylinder magnets (optional) to help hold it to the wall, and includes a pair of standoffs which help keep it from bouncing around when mounted to the wall. The magnets are optional, but they really help stabilize it when it's on the wall. The parts are glued to the whiteboard using some medium density superglue, and the wall mount is held to the wall using a large 3M Command Strip. The Command Strip will need to be cut down a bit to fit the wall mount.
The design will probably work with other whiteboards and other sizes of the staples whiteboards, however it was specifically designed for the Staples 11x14 version. There are a pair of standoffs which mount to the cardboard back of the whiteboard using superglue, and should be placed either along the sides, or at the top and bottom. They keep the whiteboard from moving too much when using it on the wall. It prints without supports, and a 3MF is available for it. You can find the models on MakerWorld or Printables. I've been bouncing ideas for a silicone RTV gasket off a few people over the past few weeks, and I will soon be testing if I can mold a gasket for the new v2.3 20 Bin Gridfinity BFS, using a PETG mold. The RTV I picked up is designed for BBQ grills, but it says it's food safe and high temp, neither of which will come in handy, but it has some good reviews and is a gasket material. My current plan is to use a 2 part PETG mold, which will be held together using some clips. The mold will be open top, so I can just squeegee the excess silicone to finish the casting. I'm planning to use some dish soap and alcohol as a mold release, which will hopefully retain the small details and also be super cheap. I'm hopeful that a silicone gasket will help seal out moisture more effectively than the harder TPU gasket. Making a gasket from RTV is gonna be a messy and somewhat complicated way to do it, but I think for some applications, it may be worthwhile. Update 6/22/2024: I should be used to this by now but unfortunately an open top mold is very messy, and the idea of smoothing the base using (in my case) a plastic razor blade, did not result in a very nice finish. It may still work, but again, it's messy. Something else I noted with my first attempt, and that is a good mold release is crucial. I am using PETG and thought it may be slippery enough on it's own, but still added some soap to it (Dawn Powerwash spray), but it still stuck like crazy. I'm gonna try something more substantial next time, like cooking oil spray or petroleum jelly So plan B is to try a fully enclosed mold. I reworked the open top mold so it can fully enclose the part, and added several vent holes and a hole to "inject" the silicone RTV into. I'm sure that curing will take much longer with this approach, and I will have to clean up some sprues, but hopefully it will produce a cleaner result. I designed some clips to hold the parts of the mold together, however I also plan to use some binder clips. Update 6/23/2024: 2nd attempt at making a silicone RTV gasket is underway. This time my recipe for disaster (or success) is:
The round holes in the mold are for the alignment pins, which I found are not really needed, since there are several other alignment features which do the job. Plan C, if there are gaps, is to try and prefill the mold (overfill it) and increase the vent holes, then clamp it up, and inject some more RTV for good measure. I asked the reddit hive mind to get their take on better ways of doing this, and may change Plan C (or D, E, or F), if there is a better idea or method for doing this (or a better material I should use, which is not too expensive). Update 6/25/2024: The 2nd attempt failed. The mold did not fill completely and the RTV that did fill it, mostly stuck to the mold. After doing more research, I considered thinning the RTV using mineral spirits and casting it that way, however I do not know if that affects the properties of the RTV, and it may take much longer to cure that way. The pourable silicones seem like they may work, however I have read there are issues with UV exposure and since they are not designed for use as a gasket, I question if they would be durable enough. So right now I don't see an option that will not take a good deal of trial and error - which I don't have time for. For the sake of simplicity, I decided to try some softer filament and try printing the gasket. I found some eSun TPE 83A filament, which looks like it may work. It's not cheap, though also not super expensive at $30/kg, so worth a try. Update 6/30/2024: The 3D printed TPE gasket was a bit better than the TPU version, but still not water resistant enough. For now though, I'm setting the silicone gasket idea aside. There is too many variables with a molded silicone gasket, which would take a good deal of time and trial and error to figure out. Additionally, 3D printed parts are difficult to waterproof, without sealing, so that is something else that would need to be investigated. The cases I have tested have failed as much at the gaskets as they have in the porosity of the walls. This is a project for another time I think, I'm moving on to other stuff for now. Below are some pics of the eSun TPE 83A gaskets which were printed, they were not as easy as 95A TPU to print, but they are a bit softer.
|
Stoopid MeWelcome to my Stoopid corner of teh Internet. It's mostly gonna be 3D printing stuff, but I also post some recipes, projects, and the occasional rant here as well. More Stoopid stuff is updated regularly. Archives
December 2024
Categories |