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Reading a punched card more reliably. Setting up X and Y axes.

A project log for RelayRepRap

This project is about exploring whether it is possible to make a RepRap control system that can be made by a RepRap.

will.stevenswill.stevens 10/03/2016 at 22:050 Comments

I made the tape reading mechanism more reliable by weighting down the copper nails that serve as brushes. I also made a guide to prevent them from moving more than a half a millimetre or so out of position. This video shows the mechanism reading a card containing 24 4-bit words:

My next task is to make a 10-bit wide version of this. The card was made using a Silhouette Portrait cutter that I purchased specifically for this purpose using some of the prize money that I won for the Automation round of the 2016 Hackaday Prize.

Meanwhile I've been setting up X and Y axes. These axes should be capable of moving a felt tipped pen across some paper.

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