Erica Synths EDU DIY Wavefolder Eurorack Module Kit - Manual (Page 51)

Now, turn the PCB around and inspect
your solder joints. Make sure all
components are soldered properly and
there are no cold solder joints or
accidental shorts. Clean the PCB to
remove extra flux, if necessary.
Insert the jack sockets and solder them.
Then insert the potentiometer, but don’t
solder it yet! Fit the front panel and make
sure that the potentiometer shaft is
aligned with the holes in the panel – and
that they’re able to rotate freely. Now, go
ahead and solder the potentiometer.
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Then fit the front panel and fix it with the hex
nuts.
Now, insert the IC into the DIP socket.
Mind the orientation of the IC – match the
notch on the IC with the one on its socket.