CNC 1610 ChipSHOUTER Holder / Mount

prusaprinters

<p>Here is a mount for the ChipSHOUTER, a electro-magnetic fault-injection tool, to fit a classical CNC laser module mount.</p><p>If your CNC mount doesn't have the notches to fit a square laser module, you can easily adapt the design to be shaped as a motor cylinder.</p><p>Warning: this design deports the ChipSHOUTER away with the help of a SMA cable. Please test first if such deport is ok for you or not. Cables might vary. With my cable I didn't notice any loss or any difference in the effects of the pulses against tested chips.</p><p>Why such setup and why the spring mount? To avoid costly hardware destruction in case of mistake (e.g. moving too far towards the target).</p><p><strong>Notes:</strong></p><p>Print it lying on its side to better strength of the element holding the ChipSHOUTER.</p><p>The original prototype was a bit tight for the screw nuts, screw rods and SMA nut to fit.<br>This was easily solved with a hot air gun, nevertheless I added a small extra tolerance in the scad and in the generated STLs. See extra_tol and try by yourself if it fits your needs.</p><h3>Post-Printing</h3><p><strong>Required material</strong></p><ul><li>a spring, 12 mm diameter, 50 mm at rest. I used the spring of an anti-backlash nut for 8 mm rod;</li><li>a SMA cable, at least 22 cm long. Mine is 35 cm long;</li><li>a SMA female-to-female gender changer adapter;</li><li>2 small M3 screws and nuts;</li><li>4 40 mm M3 screws and 8 nuts;&nbsp;</li></ul><figure class="image"><img src="https://media.prusaprinters.org/media/prints/75112/rich_content/d962127b-c2b1-4ab7-88b3-30706920384a/material.jpg#%7B%22uuid%22%3A%22b0743348-7c46-49b1-8022-6345a19f711e%22%2C%22w%22%3A3438%2C%22h%22%3A2579%7D"></figure><p><strong>Assembly</strong></p><p>Insert nuts in their hole (on top and inside tip holder), help with hot air gun if needed;</p><ul><li>make sure long screws can move freely in their holes at bottom of main support, enlarge if needed;</li><li>screw SMA adapter on SMA cable;</li><li>make sure SMA cable nut fits in tip holder hole up to the bottom, help with hot air gun if needed;</li><li>insert SMA cable in main support;</li><li>add spring and insert SMA cable in tip holder, with the adapter already screwed on the cable;</li><li>add screw to hold the SMA nut in the tip holder;</li><li>add long screws to the tip holder with their nut but <strong>don't tighten it yet</strong>;</li><li>insert long screws and spring in the main support;</li><li>attach them with a nut inside the cavity. I find it easier to just throw a nut in position and gently turn the screw from outside;</li><li>once the 4 nuts are on their screw in the cavity, tighten the other nuts on the tip holder;</li><li>make sure both pieces can move freely with the spring;</li><li>add the ChipSHOUTER, optionally secure it with a screw on top;</li><li>put the apparatus in place on the CNC;</li><li>enjoy!</li></ul><p>&nbsp;</p>