NanoCAD is a free to use design software including both 2D and 3D design features. NanoCAD also includes premium features that users can upgrade to as needed.
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PTC Mathcad
Score 8.0 out of 10
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PTC Mathcad Prime is a digital engineering notebook enabling engineers, mathematicians, and scientists to solve, analyze, document, and share their calculations. It helps users to solve problems accurately the first time numerically and/or symbolically, and then reuse important intellectual property with templates to save time on the next project.
It is great when cleaning up CAD files and allowing for 3rd party add-ins. It allows you to delete used layers. It would be nice if it saved to smaller file sizes when saving as an older DWG. It is easy to scale drawings and make floor plan layouts. It would be nice if it would pick up the default units that I set for my preference when opening up a converted file from pdf.
It is great for any manual calculation. You can lay it out as you would on paper, but the math is calculated instantly, similar to how it is in excel. It is superior to either method for most engineering calculations. Being able to copy-and-paste is very helpful for considering multiple scenarios. In some situations where you need to do the same calculation on an array of numbers, Excel is still faster.
We like NanoCAD for what it does for us and will renew or license when the time comes. There is no question of doubt because we are very happy with it.
Higher-order math, despite symbolics, become tedious and variable nomenclature isn't as forgiving as other programs. Due to it's sheet-like nature, the greater the complexity the more bothersome the screen usage becomes. But it's a trade-off between a sketchpad-like interface or lines and lines of code. Pick your poison but MathCad was our choice.
NanoCAD has been the best solution after using other high-priced software systems. It has all the tools I need and no need to upgrade my computer system. I run it on a Windows 11, Core i5 Computer with 8 gb of ram and integrated graphics with no issues. It does not use up much space in my ssd.
MathCAD is easier to learn and faster to start with. It has more user-friendly interface and conventional style toolbox and GUI. It is really good for the beginners and those who are afraid of complex math.