I curious or the pros and cons for 1 1/2 versus 2 inch square tubing....Thanks in advance
brutus type brewing rig question
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OneHoppyGuy
Well-Known Member
Depends on the span and size of kettles. 1.75 is a good choice in mild steel (hard to find and expensive in stainless) for most upper rails. Lower rail can be 1.5 x 1 or 2 x 1. Legs at 1.5 are plenty. Center vertical supports do little if anything.
Some stands (MoreBeer) are built with 2 x 1 upper rail and legs.
Some stands (MoreBeer) are built with 2 x 1 upper rail and legs.
You've posted that thought frequently. What's it based upon? Seems to me nearly halving the upper rail deflection actually is "doing quite a bit".
As for the op's question, I've seen some pretty big kettles sitting on 1.5" square tubing. I think you'd need to be doing rather huge batches to justify going to 2" square, and taking the weight and cost hits...
Cheers!
OneHoppyGuy
Well-Known Member
based on experience... I built several prototypes (wanna buy a prototype?)
Really?
If you bought steel on a regular basis you wouldn't say that... (pennies different in cost)
If you want extra bracing, run a tube diagonally from the center down to either end.
Really?
If you bought steel on a regular basis you wouldn't say that... (pennies different in cost)
If you want extra bracing, run a tube diagonally from the center down to either end.
Well, your experience that led you to conclude a center support tying top to bottom rails does little to nothing wrt top rail deflection pretty much defies the whole principle of elastic modulus. Considering how many structures like bridges, buildings and even furniture have been built using that principle, I think I'd follow the science over inexplicably contrary experience.
As for buying steel on a regular basis or in large quantities, I don't, so on that at least I'd defer to your experience
Cheers!
motobrewer
I'm no atheist scientist, but...
day_trippr, can you show your work that led you to believe that by not including a vertical support his stand is being stressed outside the elastic range? also, i don't understand how by him not welding a vert support is "defying the whole principle of elastic modulus"
also...how much for a proto stand??
also...how much for a proto stand??
One of the problems with language is so few people are skilled at using it.
I actually never said anything that could be interpreted as "stressed outside the elastic range". Aside from such curious creativity on your part, that would be applying absolutes to what was clearly more a philosophical discussion.
Allow me to clarify the discussion at hand.
Mister Brewstand has frequently made the statement "Center vertical supports do little if anything", without providing any clarity of how that statement should be interpreted.
I took it to mean that tying one tier to a second tier would have no effect on weight-induced deflection. Certainly such a view would be silly, even if only applying common sense, never mind physical science.
But perhaps what he really meant was there wasn't a need for vertical ties from upper to lower spans - that the upper span of a stand would have sufficient intrinsic weight-bearing capability that tying it to a lower span is unnecessary.
If the latter interpretation was his intent, that's a totally different meaning, and one with which I might well have agreed, given a certain set of assumptions, of course.
Otoh, if he really believes the former...well, me, common sense and the physical sciences will stand securely on the other side of the question.
So, while it's still a mystery to me what the actual statement is/was supposed to convey, I hope this helps you understand my response...
Cheers!
motobrewer
I'm no atheist scientist, but...
yeah, i understand it perfectly. you are trying to sound smart without really saying anything at all.
if you thought he was talking about anything other than that, I'd say you are the one "unskilled at using language".
OP
OP
wow, quite a thead I started....It will cost me $68 in tubing for 1 1/2" and $84 for 2"...I don't mind paying the extra just wanted to see if there was any real disadvantages to using 2"...I think the keggles look a lot better on the beefy frame but hate to use it if its gonna cause issues!
freshhoarse
Well-Known Member
2BeerSpeer said:
Lol. Bet you're sorry you asked....
OP
OP
motobrewer
I'm no atheist scientist, but...
so, enough material for a brutus in mild 2" steel is $84?
OP
OP
Yep...$42 a 20' stick here in Mayberry
OneHoppyGuy
Well-Known Member
Have you priced 1 x 2?
OP
OP
I haven't, never seen anyone talk about using it but I can price it tomorrow. Only priced 1 1/2" ($34 for 20' stick) and 2" ($42 a 20' stick)
Sorry for jumping in here with a totally diferent question but do you have dimensions on this build. I would like to build one and can probably lay one out myself but plans or dimensions would make it easier. Thanks
OP
OP
i found a cut list online with detailed plans in a pdf but I suggest ordering the back issue of byo it has a lot of info and the pics always help
OneHoppyGuy
Well-Known Member
1 x 2 is what MoreBeer uses. The height is the key to the design.
OP
OP
explain
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