PCB tray for the Mistral 260

A tray that you can fit on the Mistral 260 reflow oven that catches the PCBs at the end of the conveyor belt.
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updated August 20, 2023

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This is a design for a tray for the Mistral 260 reflow oven from Spidé. The side railings are in two parts, because the length exceeds the build volume of my printer (Prusa MK3S). I glued the two pieces together with epoxy. Between the railings is an aluminium plate of 300 x 200 x 1.25 mm. The design is in OpenSCAD, so if you use a plate of different dimensions, the 3D printed parts are easily adjusted.

Several of my designs here on Printables.com are related to electronics. There is the mini-tray and the mini-reel. You might guess that I run a mini-facility for PCB production, and you would be right. The Mistral 260 is a great oven for small production facilities, but when a PCB reaches the end of the conveyor belt, it... just falls off. The intent is, of course, that there is another conveyor behind the reflow oven, which transports the PCBs to a board stacker or something similar. But the small production shops do not have that. Nor do we have a need for that. However, a tray that keeps the PCBs from falling off the reflow oven is very much needed. Hence this design.

Note that when the PCBs are at the end of the conveyor belt, they may still be 70 °C to 80 °C hot. Which is why an aluminium plate is recommended over a plastic tray.
 

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