LimeSDR Heatsink model

thingiverse

This model serves as a guide for determining final dimensions of a heatsink designed to be used with the LimeSDR in an aluminum case available on Ebay. The heatsink design was created using freecad and exported for 3D printing. However, it falls short in terms of vertical dimension. To rectify this issue, print the model first, then utilize your board, spacers, and case to measure the actual size of the heatsink with a feeler gauge. Ensure that enough space is left between the heatsink and the case for installing silicone transfer pads on top of the three large ICs. I employed 2mm thick pads for this purpose. Additionally, I inserted small pads between the voltage regulators on the bottom of the board and the bottom of the case to facilitate heat dissipation. To secure the board in place, I used m3 nuts as spacers and tapped three holes on the heatsink for fastening it to the case with m3 flathead screws. Furthermore, I employed flathead screws in countersunk holes to fasten the board to the case. The heatsink is machined out of a solid block of aluminum and serves as a heat transfer mechanism between the board and the case. To achieve this design, I utilized the following components: * The end panels used can be found here: http://www.ebay.com/itm/112088499793?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT * The case used can be found here: https://www.banggood.com/DIY-Aluminum-PCB-Box-Enclosure-Electronic-Project-Case-1007635mm-p-1038793.html