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A contractor friend of mine is all excited about getting his Construction Master Pro calculator. His usual work is decks/stairs, sheds, framing, pool decks, etc...don't really understand his excitement as he's been doing this work his whole life...

All I've ever used is my tape, rule, squares, etc, and my trig function calculator.

My typical response is "if I haven't needed it by now, I don't need it"...but it got me thinking...

Do any of you use anything like the CM Pro for your outside work...?
 

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and inside work too..
sure cuts down on errors...

the CMP has trig and analytic geometry functions
 

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Same as you Nick with the exception I used an old CAD program I had to calculate a few dimensions once in a while. Of course it doesn't work on any operating system past win 98 so back to same as you.
 
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I have had one of those calculators and found it to be useless. There is a place for it but not for me. It all depends on your willingness to use it and give up your old way of doing things.
 

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I have the Construction Master Plus EZ and it comes in handy for adding and subtracting fractions. I’ve use some of the other functions but so rarely I have to figure out how to use them.
When I need to do trig functions I use a scientific calculator for that.
 

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I used one like that for several years BC ,(Before Computers) in the field. Laying out building sites and setting benchmarks and grid lines, and grades, and slopes to catch basins. Calculating quantities of fill and cubic yards of concrete etc. Also handy for calculating amount of forms and footing formed and poured per day while standing in a plan shack in the middle of the site,figuring lumber ordering and materials plus figuring manpower requirements to meet schedules.
Herb
 

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I used one like that for several years BC ,(Before Computers) in the field. Laying out building sites and setting benchmarks and grid lines, and grades, and slopes to catch basins. Calculating quantities of fill and cubic yards of concrete etc. Also handy for calculating amount of forms and footing formed and poured per day while standing in a plan shack in the middle of the site,figuring lumber ordering and materials plus figuring manpower requirements to meet schedules.
Herb
seems like you never used it to it's full potential..
 

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That is just some of the things I used it for besides the basic rafter ,stair, slopes, And when the Architect calls out on the plans for the rise on steps to be 7 11/13".
Herb
and laying out compound compounds and polygons and and and...
 

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and laying out compound compounds and polygons and and and...
Your right, Stick, remember how we used to have to loft,or layout on the floor these things to actual size, like trusses and arches, etc.? Before calculators we used books with tables for rafters,trusses,spans,loads, trig functions,angles, numerical conversions etc.
Herb
 

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One time I remember we had to layout a curved wall that the center point of the curve was 25' outside the exterior wall of the building. the problem was we were on the 50th floor.

Another was laying out a concrete footing for the bleachers at the University Stadium that was centered between the goal posts with a 120' radius that was 45' elevation above the field.
Herb
 

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Your right, Stick, remember how we used to have to loft,or layout on the floor these things to actual size, like trusses and arches, etc.? Before calculators we used books with tables for rafters,trusses,spans,loads, trig functions,angles, numerical conversions etc.
Herb
To say nothing of a really good framing square.
 

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One time I remember we had to layout a curved wall that the center point of the curve was 25' outside the exterior wall of the building. the problem was we were on the 50th floor.

Another was laying out a concrete footing for the bleachers at the University Stadium that was centered between the goal posts with a 120' radius that was 45' elevation above the field.
Herb
forgot your CM did'ja???
 

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WOW !
I have built many structures over the years and never needed anything other than a calculator only to speed up the process. Herb, I like your BC = before computers ! I use my computer mainly for searching the net, this Forum, e-mails and some social media, and of course storing all the great data on woodworking and photos. I can read a CAD drawing but I still use a graph paper, pencil and geometry set for my designs. I guess I'm old school and that is why I still haven't ventured into a CNC unit, but maybe one day !
 
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