Finally... redemption for commercial users on an XLC Ed Subscription!Help ExcelCalcs develop its content and we’ll reward you with free XLC Pro credits worth up to $90. So if you have been intending to pick up XLC skills to prepare professional quality calculations please take this opportunity to learn and earn. Existing XLC Pro subscriptions will be extended and even commercial users on an XLC Ed subscription can find redemption in submitting content. Our Administrators co-ordinate site contributions through the forum:

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Please feel free to send this to friends and colleagues too, the more contributions the better. 


ExcelCalcs Supports QuickStart

Dr Martin Fisher and Nick Moon are the founders of a non-profit social enterprise called KickStart which uses technology and market promotion as key drivers. It is dedicated to the proposition that innovative equipment and systems can transform the lives of low-income African entrepreneurs by enabling their entry into much more profitable businesses. The idea was to design technology that was within the financial reach of Africa's poor,  and could return the initial investment in three to six months. They designed a machine to make building blocks, a press to make cooking oil out of sunflower seeds, and a hay baler. But their biggest success was with subsistence farmers, in irrigation: a small pressure pump called the MoneyMaker that would allow them to irrigate their land so they could start growing cash crops.

Dr Fisher has won numerous awards and recognition for his inventions and work as a social entrepreneur, including the IDEA Design Gold Medal, TIME Magazine's 2003 European Hero award, 2005 Skoll Award for Social Entrepreneurship, and the Schwab Foundation's "2003 Social Entrepreneur of the Year" award. In 2008 he was named Engineer of the Year by Design News magazine. Also in 2008, he received the prestigious $100,000 Lemelson-MIT Award for Sustainability" for his achievements in transforming the lives of hundreds of thousands of poor Africans though invention and innovation.

We are pleased to be supporting their worthy cause. Alan Spybey is KickStarts Director of Technology who explains how ExcelCalcs is used throughout the design process...

"The way I see ExcelCalcs helping us looks like this:

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XLC Angels always rate their downloads and if they are commercial users they obtain an XLC Pro subscription. XLC Pro subscriptions can be purchased, earned by contributing a calculation, awarded to clients who use our engineering consultancy services or they can be given to attendees of our training courses.

Repository News

Topic Author
POLEFDN.xls Show most recent message - A "glitch" was discovered in the "Pole Fdn (Czerniak)" worksheet of the "POLEFDN.xls" workbook. I was using a simple iterative approach to solve the polynomial equation for the theoretical embedment depth, "L". In Column V of the worksheet, I have what I term index numbers for each iterative evaluation of the expression to help isolate where the solution converges to zero. Problem was, I had an inadvertent small gap of numbers in the index numbers, and thus they were not completely sequential. One "lucky" gentleman had a design situation where his solution fell at that exact point where the gap in the index numbers occurred, and the solution crashed. Lucky for me he stumbled upon the problem. This has now been corrected and this workbook is now version 2.0.


 Dayton_Shear_Reinforcement_System_For_Square_Columns.xls Show most recent message - Updated to include ICC recognition per ESR-2696. Also the calculations now use a more precise burn-off length, and reflect a change in the plate thickness used with the 3/8" diameter studs.  MajorMagee
 Dayton_Shear_Reinforcement_System_For_Round_Columns.xls Show most recent message - Updated to include ICC recognition per ESR-2696. Also the calculations now use a more precise burn-off length, and reflect a change in the plate thickness used with the 3/8" diameter studs.  MajorMagee
Linear Algebra [Page: 1,2] Show most recent message - Used to rank competitors from the strongest to the weakest within a competion group using the following scheme: all competitors will compete against each other in such a way that each one is pitted against each other the others exactly once.
DJ1 DJ2 UNB UNT UNL Ver 1.xls - This is short program for STAAD users. This will add DJ1-DJ2-LY-LZ at the end of STAAD file. Then you just have to copy this below parameter and check graphically. With this you can save a hell of time which you are spending for giving these parameters.The calculation is updated to version 1.5