Building the CNC - Back Panel

A project log for Muffsy Phono Preamp PP-2

An Improved AudioKarma CNC Phono Stage

skrodahlskrodahl 03/27/2015 at 21:120 Comments

Continuing on my build, I got the phono stage completed, my PSU and the 0905 enclosure to house everything. The problem is that the back panel of the enclosure has a big hole in it for an IEC connector. That's no good...

I ended up working with plexiglass for the very first time. Let me tell you, that's no walk in the park. Unless the park is full of dragons and crocodiles and other things that makes you very cross indeed.

Nonetheless, I think I got the hang of it. Here are a few pictures. This first one shows my desk with a lot of clutter and a piece of plexiglass that has a power button, a 2.1mm power connector and the first two RCA plugs:

Here's a close-up of the back panel at this stage:

As you can see between the RCAs and the power button and connector, there's a hole for the ground screw.

Now, here it is completed (yes, I know, the ground screw is still missing):

The backside looks like this:

I already noticed a problem, the nuts on both the power button and the power connector are touching the enclosure. I did think the power button looked too big when I bought it... That's DIY for you, I'll glue them to the back panel instead.

Anyhow, that's one step closer to a working phono stage.

If you should wonder about the tidying up afterwards, it was almost as bad as working with plexiglass.