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Cabinet has a little give...should I worry?
DrewKaree:
--- Quote from: Ed_McCarron on August 02, 2005, 12:24:45 pm ---
But I'm confused as to why the pair of diagonal braces is bad? Are you thinking that the joint would weaken the 2x4? I've built trailer walls (OK, more like a fence) like this - and they hold up over the road pretty well.
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"bad" is a poor term to use. The diagonal braces are a good solution for what's presently done, but the way I'm picturing it, you're introducing two angled cuts into the mix that will need to be measured and cut well in order for them to fit. I'll post a crude picture next to show how I'm interpreting it. Throwing in a half-lap introduces even MORE woodworking into an equation that is already not satisfactory to the person who produced the initial project. Even without the half-lap, it will still require angled cuts that may or may not solve the problem.
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My college statics classes tell me that the x-brace in the back would stop the side to side wobble pretty well - the front, perhaps not, but I'm hoping theres a front installed on his cab to stiffen it up. With no front stiffener, there'd be some kind of bending moment set up if you rocked that half of the cab, but thats another story all together.
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It's the best (and cheapest) solution. College or not, that's THE quick and dirty fix right now. Without introducing any angles into it, I was just thinking throwing two more horizontal braces in there in the back (because I've gotta believe there's a front too, otherwise that accounts for ALL of his slop ;) ) is gonna stiffen it enough to satisfy.
--- Quote from: ahofle on August 02, 2005, 11:32:56 am ---Hmmm, sounds like different advice from your 7 step list earlier ('just throw a couple 2x4s under the monitor shelf'). And why are diagonal braces a 'recipe for disaster'?
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My bad on being vague. I'd split them up, one prolly above the monitor, one below, as most folks are already paranoid about their monitor falling (who could blame ya's since it's prolly one of the more expensive parts and a pain to replace!) Not an addition to the current monitor shelf, something OTHER than the monitor shelf.
The monitor shelf itself is already helping to stiffen your cab and keep it from feeling even wobblier (usually - each monitor shelf is different, your mileage may vary) if you've got a "square" frame to set your monitor on, meaning a square made of wood which would fasten to the sides AND the front and back. That frame is helping to somewhat square your shell.
Generally, with objects this tall, flex comes from a top corner to a bottom opposite corner, which is why a back to something like this is THE best way to solve it. The cross braces are the NEXT best, and simple horizontal braces are the least best. Notice that in the order from worst to least best, they also get progressively more involved. That is what I meant to imply about a recipe for disaster. Please, anyone who might think I'm telling you the idea is a waste of time - I didn't intend for it to sound like that. I just think either make the back, and do it right, or if you're worried about a slight wobble, throw in the horizontals. If it doesn't solve it, you're out $6 and some saw-blade wearage, and you'll want to add a back to solve the problem for good.
(whew, trying to shorten answers was recommended. I just am not the guy to give it a try.....EVER :P )
Ed_McCarron:
--- Quote from: DrewKaree on August 02, 2005, 02:12:42 pm ---
that's THE quick and dirty fix right now.
--- End quote ---
Theres other ways to do things??? :)
All I could think was that I missed something fundamental and was about to be responsible for some poor souls cabinet crashing down on his head.
DrewKaree:
--- Quote from: Ed_McCarron on August 02, 2005, 02:42:52 pm ---
Theres other ways to do things??? :)
All I could think was that I missed something fundamental and was about to be responsible for some poor souls cabinet crashing down on his head.
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I even forgot to add the pic to show what I'm thinking and why I look at it as a bad idea Sorry if you thought I meant doing that would be "building a booby trap" :-\
DrewKaree:
Here's what I picture when advising an X bracing setup. The dual angled cuts at each end are even harder than the generic "angle cut it so it rests on the cab side/floor/top.
Does that help explain why personally I think it's inviting trouble instead of adding horizontal braces or a back? Hopefully it does. If it were just cutting each end at a 45 of the proper length, if it wobbles, I see it pushing on the cab at one of the weakest points (two joined edges) in a concentrated fashion. The dual angles kinda spread it out and would have 2 screws in opposing directions, which is why I'm thinking this is what everyone is intending.
*edit*
I had problems attaching the pic the first time, and the second time it showed up for me. What gives with the attachments?
DrewKaree:
--- Quote from: pinballjim on August 02, 2005, 03:35:31 pm ---Okay, this is easy.
First make a back door.
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I never made it to the rest of your tips. That solved it, so I'm on my La-Z-boy waiting for RTSdaddy's wife to fetch me another beer and order my hat ;D
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