F-CAD Drawings

 CHAPTER FIFTEEN:   THE HAND CRANCKED LEADSCREW A leadscrew is a mechanical moving mechanism used to convert torque or rotary motion into a precise linear motion driving a load. It is also called a power screw or translation screw and is composed of a screw threaded shaft, a coupling nut, a carriage, sliding guides and a cranking device (or rotary power input source).  The threaded shaft is attached to the carriage via the coupling nut. The carriage is constrained to a linear motion by the sliding guides or channel. So when a rotary motion is applied to the shaft (say with a hand crank wheel), the nut is restricted from turning too due to attachment to the carriage. This forces the nut to move with and in the direction of the carriage which is along the linear guides.  Specifically for our design, a clamp tail will be attached to the end of the carriage, while the clamp mouth attaches to the tip of the sliver tape, so when the leadscrew is turned, and the carria...

As can be seen from these short videos, the raw hemp sliver lacks uniformity and structural integrity to be processed continuously on the Michelman fiber sizing line, hence the need for modification to the 'S4 tape' - by arrangement, alignment and stitching. 

CHAPTER FOURTEEN: THE TWO-WAY CONTROL JIG So, first things first, I apologize to all the fans of F-CAD and to my dear blog...it's been more than three years now since I last updated. Life happened...or more precisely, PhD happened. Anyways, I am back! and moving ahead... A jig is a mechanical tool used in work holding, that guides a particular manufacturing process carried out on the work that is being held. Jigs are basically necessary to ensure accuracy and repeatability in manufacturing and material working. For instance, if you are cutting a specific dimension on a wood plank with a machine saw, there are chances that the plank may shift or become misaligned due to vibrations or human error. So, the jig comes into use, to help you position and hold down the plank while you machine it in-situ. In this way, you can work on several pieces of the wood, and the output will all be relatively same with minimal deviations.  In the same manner, this 2-way jig as the name goes, has been ...