I have a Focusrite Saffire Pro 40 that is setup as part of my live rig. To change the master volume, it requires that I reach down and blindly grab the correct one of about 30 knobs. If you haven’t guessed, I rarely get it.
The solution is simple. Make a bigger knob out of sapele, of course.
- It’s almost a knob!
- Give it the D, part 1
- Give it the D, part 2
- Some Indication
- Support me!
First thing we need to do is start with a block of wood. A nice piece of Sapele will do it. I measured and found that a 1” knob will fit nicely and be quite large in context.
Now I chuck it up in the lathe to get the profile I want.
There needs to be a center hole for this D-shaped knob shaft to go. I toss my drill chuck in the lathe tailstock and get going.
It’s almost a knob!
Get that nasty square part off…
Give it the D, part 1
First step to making the D hole is to cut a little sliver of wood. In this case it’s exactly 1mm thick.
Now it needs to be trimmed to the correct width with a sharp chisel. Note that you need to go WITH the grain. If you go against it, then it will split in a way you don’t want. Pay attention to the grain!
Now the back of the slice needs to be rounded so it fits nicely in the hole.
Give it the D, part 2
Cover the slice in some medium viscocity CA, insert and then spray with some accelerator.
Trim it down to look nice
A centerfinder is used to line up the ‘indication point’ on the face. The flat face of the D shaft points perpendicular to the indication mark.
I then took a V chisel and cut the indication mark on the face.
CA as finish! The pen turner’s favorite thing. I like to apply it with Kimwipes. These things are my favorite finish application product now.
Only took about 30 minutes. It will probably save me that much time fumbling around in just a few days.
Yes, I keep the plastic on all my stuff. Deal with it.
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