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 [DPRG] Re: A modest proposal Message index sorted by: [ date ] [ thread ] [ subject ] [ author ] Previous message: [DPRG] Re: A modest proposal Next message: [DPRG] Re: A modest proposal Subject: [DPRG] Re: A modest proposal From: Pete Miles petem at ormondllc.com Date: Tue Nov 5 18:51:00 CST 2002 ```A full size steel sumo ring surface that is 1/8 inch thick will weigh 102 pounds, according to my calculation because the density of steel is 0.283 pounds/cubic inch. Volume = (pi/4)*(60.63 inch diameter)^2 * (0.125 inch thick) = 360.89 in^3 weight = 0.283 lb/in^3 * 360.80 in^3 = 102.13 pounds. A 1/16 inch thick steel surface will weigh half that, and a wooden subsurface would be ideal. Pete petem at ormondllc.com ----- Original Message ----- >From: "Dave Hylands" To: Sent: Tuesday, November 05, 2002 4:06 PM Subject: RE: [DPRG] Re: A modest proposal > Hi Charlie, > > Actually, that would be 4.25 pounds per square foot (I'm assuming that the > quoted 68 pounds per square foot for 1" thick is correct). A Mini Sumo ring > is about 4.9 square feet. > > The full size sumo is supposed to be twice as thick, and the ring has 4 > times the area, so that's an 8 times multiplier. > > So steel for Mini Sumo weighs: 4.9 * 4.25 = approx 21 lbs > For Full size Sumo: 167 pounds. > > So you're basically adding 167 pounds to whatever weight you've already got > in the full sized sumo ring. > > Dave Hylands > > > -----Original Message----- > > From: Charlie W Youngblood [mailto:chaz128 at juno.com] > > Sent: Tuesday, November 05, 2002 3:20 PM > > To: dprglist at dprg.org > > Subject: [DPRG] Re: A modest proposal > > > > > > Aha! That would make it weigh 4.25 pounds plus underframe! > > Thats more like it! > > Charlie Youngblood > > > > --------- Begin forwarded message ---------- > > From: "Dave Hylands" > > Guys, > > > > The steel in the steel ring for the mini sumo ring is only > > 0.063 (1/16") > > inches thick (the exact material is supposed to be ASM 366 steel). It > > would > > probably be glued down onto a plywood base. > > > > I don't know what the spec is for full sized sumo. > > -- > > Dave Hylands > > Vancouver, BC, Canada > > http://www.davehylands.com/ > > > > > -----Original Message----- > > > From: Charles [mailto:cthurston at sc.rr.com] > > > Hello Earl, > > > > > > Well 1 inch steel plate weights 68 pounds a square foot and 1/2 inch > > > is 34 pounds a square foot. A frame to brace 1/4 inch plate would > > > weigh as much as a ring of 1/2 inch plate. > > > > > > Best Regards > > > Charles cthurston at sc.rr.com > > > > _______________________________________________ > > DPRGlist mailing list > > DPRGlist at dprg.org > > http://nimon.ncc.com/mailman/listinfo/dprglist > > > > --------- End forwarded message ---------- > > > > > > ________________________________________________________________ > > Sign Up for Juno Platinum Internet Access Today > > Only \$9.95 per month! > > Visit www.juno.com > > _______________________________________________ > > DPRGlist mailing list > > DPRGlist at dprg.org > > http://nimon.ncc.com/mailman/listinfo/dprglist > > > > _______________________________________________ > DPRGlist mailing list > DPRGlist at dprg.org > http://nimon.ncc.com/mailman/listinfo/dprglist > ``` Previous message: [DPRG] Re: A modest proposal Next message: [DPRG] Re: A modest proposal Message index sorted by: [ date ] [ thread ] [ subject ] [ author ] More information about the DPRG mailing list