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Try a search for 'cable management' on Google, or directly on Amazon. That may narrow down what you want.
Julian
On 23/01/20 18:46, mr meowski wrote:Maybe my google-fu has gotten weak but I thought I'd ask you lot before having a tantrum and giving up (that's plan B). There are plenty of practically minded DIY-ers with considerably more experience here so hopefully someone can point out the magic term I need? For background I'm - reluctantly - doing some case modifications for additional cooling on a Linux box getting racked up in a dusty workshop environment and I need easily removable dust filters mounted in arbitrary holes punched through the case plastics. I'd perhaps unwisely convinced myself that there must exist easily sourced rubber double-sided grommets that would fit snugly into the circular 80mm/120mm holes I'm going to cut. As it happens, those do exist but seem to only be 'closed' (and are typically called "bungs" apparently) or 'open' (such as are typically used to route wiring through). So far so good. What I'm having trouble finding is an open-type grommet that has, umm, 'lips' (?) on both the outwards facing rim of the grommet _and_ the inwards facing surface so it can mate securely both to the round hole it's going to be fitted into and then let me neatly drop in a dust filter inside that. So the cross section of the grommet would be a H shape basically. Make sense? Now I can find H cross-section rubber strips that I could cut to fit and make squared off holes instead I guess but I really struggle to believe that these things can't be easily bought if I just knew what they were actually called. Surely they must be really common but perhaps in plumbing or the air conditioning industry? I've even been combing through Ebay listings for vacuum cleaner parts... If anyone can clue me in I'd be very grateful!I suspect you're falling into a crack of unusual combinations of requirements, which don't occur with enough frequency in 'real-world applications' for there to be a profusion of options readily available. Essentially you're looking for a cross between a gasket and a gromit, the former being the common air-tight sealing, and the latter for simple non-abrasion between surfaces. The other items of use are of course, seals and glands for water-tight seals. You might be able to cut yourself a rubber gasket out of neoprine rubber perhaps, or another material, or the other option at the 50-200mm range is a flexible plastic strip in U-formation but is discontinuous in that you can bend it round corners easily, so the sides of the 'U' are perforated, whereas the base is continuous. That's about the best I can offer from my engineering experiences...
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