Useful machine cuts warmth shrink tubing to size

Solder joints on PCBs don’t normally require further safety, however free wires are a special story. As a result of they’ll transfer round and contact one another or the enclosure, it is advisable defend the naked wire from shorts. Most individuals use both electrical tape or warmth shrink tubing for the job. However slicing warmth shrink tubing to size generally is a time-consuming course of in case you have many wires to guard. That’s why Mr Revolutionary used an Arduino to construct this useful machine that cuts warmth shrink tubing robotically.

Mr Revolutionary constructed comparable machines prior to now, together with one which feeds 4 totally different wire spools and cuts them to desired lengths. This machine is analogous, however works with a single spool of warmth shrink tubing. The person inserts one finish of the tubing into the machine, units the size by way of a touchscreen interface, and the machine takes care of the remaining. It should proceed to snip off sections of tubing, the entire identical size, till it runs out of warmth shrink to work with. 

An Arduino Nano board controls the machine by means of a customized PCB that comprises two A4988 stepper motor drivers. A NEMA 17 stepper motors drives a wheel that feeds the warmth shrink tubing. A high-torque stepper motor in a servo motor bundle actuates a linkage that pushes the slicing blade. The show is a Nextion NX3224K028 2.8″ resistive touchscreen with a decision of 320×240, which has a customized interface programmed by Mr Revolutionary. The machine’s body is a mix of wooden, aluminum extrusion, and 3D-printed elements.