So, if I refer just to something like IEC 61010 (safety requirements for electrical equipment for measurement, control and laboratory use), I'm talking about protection against electric shock (section 6 in the standard).
The standard basically says 2 things:
- You must not allow any ACCESSIBLE...
Hi drawoh,
Sorry I forgot to mention what I was trying to accomplish...this is for safety, not EMI/RFI shielding. The most applicable standard would be something like IEC 601010.
Hi,
I have a general "best practice" question about grounding of large instrumentation. In the past, when I've built enclosures or sub-systems out of 8020 and aluminum or powder coated steel panels, I've always attempted to ground all panels & metal parts (eg. using PEMs on the steel panels...
Thanks for all the suggestions everyone. I do know some tool makers who have injection molding experience so I'll be consulting with them.
I've also started looking a little into heat staking as was suggested previously. One added benefit of this is that I can create round geometries on the...
Harry,
Thanks for your advice & help, really appreciate it. I'll have to calculate out what kind of holding forces I want, but I'm glad to have the idea revalidated by someone with more experience than me.
I will definitely work closely with my supplier...I also know a toolmaker or two so I...
Right. The part doesn't need to be removable but it also doesn't have to be permanent. If I can design a removable feature such that the part can be bumped off without extra tooling, and it provides enough holding force to prevent having the part pop off undesirably (like if the user picks it...
Hi Mike,
Yes I was thinking about the tolerances before, but drew that up fairly quickly as a concept. I think if I were to go with the glueing method, I would have two studs purely for alignment, and then have a couple of tabs rather than round studs that fit into loose clearance slots for...
That's an interesting idea...almost like riveting. However, it still requires some extra assembly processes afterwards which I'd like to avoid in order to make assembly cheaper.
I've read that you can have slight undercuts called "bump-offs" that can be used without requiring extra mold...
Unless I am mistaken, molding it with a snap fit may require side action in the mold which would increase cost. I've read that you can have slight undercuts with "bump-offs" but I'm not sure those would hold strongly enough. There are also aesthetic reasons why some of these designs may not...
Hi All,
I have part that is around 4.5 cubic inches and acts as a cover and light diffuser for a LED assembly. The current prototype is made of glued frosted polycarbonate, but if we are looking to manufacture hundreds of these I was hoping injection molding or some type of forming would be...
Thanks Compositepro. I couldn't find any info regarding this particular configuration in o-ring design guides, so I was curious.
I don't mean to be pedantic, but isn't an o-ring just a specific type of gasket?
I assume the enclosures are designed this way so they can achieve a seal with...
Hey All,
I was looking at some IP rated enclosures and noticed that almost all of them (whether they used a gasket or an o-ring), have a raised lip on the mating side of the enclosure which compresses the gasket/o-ring.
For example: http://www.rapidonline.com/pdf/30-4336.pdf
Is there a reason...
Hey Guys,
Thanks for your replies. It's invaluable to have other people's advice, especially when they have more experience in this area than me.
I am definitely considering IP rated COTS enclosures along with membrane button overlays. I have no idea what the costs are for the overlays yet...
Hi All,
I'm working on a project that requires an IP66 rated enclosure. This device has to have several buttons and LED indicators. I don't have any experience with designing water tight enclosures so I thought I would pick everyone's brain here, while doing my own research in parallel. The...
