The Design of "Cylinder Notes MHALL.stl".

Instructables Member brmarcum asked if I could provide design details for the "Cylinder Notes MHALL.stl" part used in "Four Whistles Version 2" (http://ift.tt/2p0rpGp). This cylinder activates the cylinder arms which in turn activate the valve arms and valves via...
By: gzumwalt

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