What is the clearance needed for a covertec knob?

[craig139]

I would like to add a covertec knob to my saber AND extend it a bit for a better fit for the electronics. In the store is a .75" male/female extension. My question from looking at it in MHS Builder is is there enough non-threaded space for an 8-32 theaded hole to be drilled and tapped without interfering with the threads? Thanks in advance.

[Silver Serpent]

I'd say maybe, if you don't mind losing the area for locking chassis discs. Gonna be close.

[craig139]

What do you mean by a "locking chassis disc"?

[Silver Serpent]

Some of the metal discs in the chassis parts section ( http://www.thecustomsabershop.com/Ch...Parts-C74.aspx ) are designed to lock between two MHS parts. There's a small gap between the threaded areas that is safe to drill into, but it may interfere with using those discs.

If you're not using those metal discs, then there shouldn't be an issue. I'd measure *very* carefully before drilling, or get Tim to drill the holes for you.

[ghoti115]

I'm curious about this and have a couple of questions too.

Does the hole for a Covertec knob have to be drilled all the way through the wall of the part? Would it be possible to drill and tap the hole and just use a shorter screw (or cut the screw to a little less than 1/10th of an inch beyond the knob) to hold it in place? I am guessing the answer to that depends on the thread count of the screw. With 32 threads per inch on an 8-32 would 3 threads be enough to hold it in place? Would an 8-40 work better? Would an application of some superglue (or epoxy) help lock things in place?

This isn't something I am planning on doing, just some questions I had while reading.

[Silver Serpent]

It's *possible* but you'd need some different tools to accomplish this. What you're describing is a blind hole, and you'd need a bottom tap to thread it all the way to the bottom.

Personally, I wouldn't recommend doing it that way. But you're always welcome to try new things.

[Forgetful Jedi Knight]

You could also have the hole drilled and tapped all the way through, yet make sure you have (or cut down the screw you have) to the correct length screw that doesn't go all the way through the hole.

[craig139]

Thanks for the discussion! It certainly gives me much to think about. At this time, the only chassis element I am considering is the all-in-one unit that holds a speaker, 18650 battery, and NB-V2 board. Are there any diagrams on how to use the various chassis elements?