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RoeTest Heatsink Drill Templates — image 1
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RoeTest Heatsink Drill Templates

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Design related to Helmut Weigl's RoeTest tube tester: Drill templates for the main heatsink

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Model information

Category
Electronics
License
Creative Commons — Attribution — Noncommercial — Share Alike

General information

At the end of 2024, I set up version 11 of Helmut Weigl's RoeTest. In the process, I created some 3D designs that I am making available to the community in this collection. You can read more information about my build of the RoeTest and the use of the designs published here in my build report at Radio-Bastler.de (German) or on the RoeTest website (German).

About this Design

These are two drill tempaltes for drilling the main heatsink. I recommend to print the design from PETG in 0.25mm layer height. You can set top and bottom layers to 0 to speed up print and save material.

Important: Compensating for part shrinkage

Since the larger template is quite large, you should compensate for material shrinkage: Print a sample using the same material and settings and measure shrinkage of the printed parts compared to the model. Then in the slicer apply a size scale factor in x- and y- direction. In my designs I usually have to use a factor of around 1.0025…1.0045 to compensate for my PETG material.

Drilling and tapping

  • For the 5 holes for the MOSFETs and the temperature-sensor predrill with 2.5mm drill and tap a M3 thread
  • For the 4 holes for mountig the front panel to the heatsink predrill with 3.3mm drill and tap a M4 thread

!! Check for the correct position of the holes before drilling!!

OpenScad source code included.

Happy printing!

If you like this design, then please leave a like and also post a make in the comments.

You might also want to check out my other designs

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