Posted 12 April 2015 - 11:35 PM
This method is cool but I see a few problems with it where the NIC is concerned. Winding your own springs is not impossible, but requires a good amount of work, and the end result will likely be far from perfect. The use of McMaster and other supply stores allows for a baseline for performance for spring blasters. Plus, as stated in the video, springs have a particular metallurgy, and I trust a place that makes springs for a living more than my own shop made ones to sustain their spring constant longer.