How to make this more professional

[docfxit]

I would like some suggestions on how to make this more professional:

I would like to find something to hold the board in the project box. Maybe a 3d printed something. The box will go into a car on the inside, so it will be subject to vibrations.
I would like to find some rubber grommets for two wires that need to come out of the box. I really didn't want to buy a set on Amazon of 200 pieces with a lot of sizes that I will never use. These wires are 1/8" and there are only two of them.

[LarryD]

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How to make this more professional

https://forum.arduino.cc/t/share-tips-you-have-come-across/428745/634?u=larryd [Nine] https://forum.arduino.cc/t/share-tips-you-have-come-across/428745/635?u=larryd https://forum.arduino.cc/t/how-to-make-this-more-professional/1340454/2?u=larryd https://forum.arduino.cc/t/share-tips-you-have-come-across/428745/692?u=larryd [8] [B]

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The brass standoff is probably the easiest method, it provides a strong hitching post for your cable. If you like working with plastics and have access to Methylene Chloride, you can forgo the standoff and just use plastic. Since you are welding the plastic to your chassis, there is no visible screw on the outside of the case. [A.jpg] [B.jpg]

[LarryD]

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The following technique should produce particularly good results when you need to make a ‘Mother Board’ (mounting board) for project cases. Essentially, we make a collage using straight edged pieces of card stock to cover the outline of the bottom of the case. After taping, the collage is retrieved and used as a template to aid in cutting and drilling PCB FR4 material. [A.jpg] [B.jpg] [C.jpg] [D.jpg] [E.jpg] [G.jpg] [H.jpg]

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If you are making several copies of a mother board etc., first make a 'Template Drilling Board', use the template to reproduce holes in the copies. [A.jpg] [B.jpg] [C.jpg] [D.jpg] [E.jpg] [F.jpg] [G.jpg] [H.jpg] [I.jpg] [J.jpg]

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[sumguy]

These breakout boards can be handy at times and are ready available from Amazon.

[Paul_KD7HB]

@docfxit

I really didn't want to buy a set on Amazon of 200 pieces with a lot of sizes that I will never use. These wires are 1/8" and there are only two of them.

Try black RTV!