Lion Tamer Posted March 9, 2008 Share Posted March 9, 2008 Hi All We are going to be putting some rack mount bars under the worktop at Church soon (so that things won't be stacked on top of each other any more). :) We are looking at using bar from either Kelsey or Maplin, but would like to know which way round to mount the bar - where abouts should the angle be? e.g. _| |_ On the Inside of the space |_ _| On the Outside of the space Or does it not matter? Also - what is the difference between the "single" and "double" rack strip that Kelsey supply? Thank you Jem P.S. Sorry if this seems like a very basic newbie question but neither Google or the Wiki were helping me that much. Link to comment Share on other sites More sharing options...
peternewman Posted March 9, 2008 Share Posted March 9, 2008 Nearly all rack strip I've seen mounted has always been on the outside (your second diagram), but that is mainly because its usually a case or something, so there is stuff to bolt/rivet/screw onto at the sides, whereas the middle is just air. Anyway I imagine most is designed for the outside, and it would also give you a bit more leeway for clearance, so I'd go for that. I assume you've found the specs for mounting on the wiki? Regarding single or double, Penn's website shows both more clearly with pictures here. AFAIUI the extra strip on the double is for attaching the back of heavy devices such as amps/shelves too, so is only needed towards the rear of where most units would be, usually the back of the rack. I've certainly never needed it for anything. Link to comment Share on other sites More sharing options...
Ben Langfeld Posted March 9, 2008 Share Posted March 9, 2008 I believe there may be confusion in terminology here. Your second diagram is right, but you would mount the strip on the inside walls of the container. Take a look at any pre-made rack case and you'll see exactly how it should be done. Like this (longer lines are walls of container): | | | | || || ||_ _|| | | Link to comment Share on other sites More sharing options...
Paul TC Posted March 9, 2008 Share Posted March 9, 2008 I would suggest you look at putting front and rear double rackstrips in, spaced to support shelf supports for the rackstrip between them if you are wanting to mount anything other than lightweight effects units, e.g. power ampifiers especially where you cannot arrange a rear fixing. Otherwise you will have all the weight on your front rackstrip and it will become difficult to remove items. Rear rackstrip can be used to mount mains distro, cable support bars etc. Its how we always used to build racks for Private Mobile Radio Systems that used 19" Units of 1U - 6U size Someone with more knowledge might like to comment on the earthing arrangements you should employ. Link to comment Share on other sites More sharing options...
Lion Tamer Posted March 10, 2008 Author Share Posted March 10, 2008 Hi Guys Thank you for the information so far. Peter - yes I found the Wiki and thankyou for sorting out the difference between single and double strips for me. Ben -Your right about the terminology, but at the time I just could not think of a better way to say the question. Paul - How far apart would you space the front and rear rackstrips if it was your build (We don't really have major need of it now but it might be a wise idea to put it in ready for the future as it will be easier to do it now rather than wait till latter - it wouldn't cost that much anyway) All: -Do many of you use rack strips at front and rear and would you recommend it where possible?Would you recommend going with double rack strip instead of single where possible for future proofing etc?Is there any special earthing requirements or would you leave it with the equipment relying on its on earth only? Thank you in advance Jem Link to comment Share on other sites More sharing options...
Steve Cavill Posted March 10, 2008 Share Posted March 10, 2008 Highly recommend front and rear rack strip. It can be used to take the weight of heavy items, and also mounting power distribution at the back of the rack. Link to comment Share on other sites More sharing options...
Paul TC Posted March 10, 2008 Share Posted March 10, 2008 How far apart would you space the front and rear rackstrips if it was your build (We don't really have major need of it now but it might be a wise idea to put it in ready for the future as it will be easier to do it now rather than wait till latter - it wouldn't cost that much anyway) If you think you are going to need shelves, or want to be able to use them, I would suggest you buy a pair of shelves, along with your rackstrip and use that as the guide to dimensions for front to back spacing. Also if you are going to recess the rack strips in the cabinet to allow handles. knobs, etc to clear a front door, then put a vertical block each side so that you have a bit of play for mounting and do not have to use a Birmingham screwdriver to get stuff in and out. Dependent on your cabinet material it may add some strength to the unit and ventilation space at side of units. E.G. showing the front | | | | |[]| |[]| |[]|_ _|[]| | | Link to comment Share on other sites More sharing options...
Lion Tamer Posted March 11, 2008 Author Share Posted March 11, 2008 Thanks Guys Double strips front and back it is then. Jem Link to comment Share on other sites More sharing options...
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