On the subject of knobs.
If you have a dead/cracked knob, or access to a lathe, you can get the insert.? Aluminum will work equally well.? They knurled the knob insert.
Print the knob so that the center hole is very slightly smaller than the insert, but only by, say 10 thousandths.
Since the plastic has a relatively low melting point, all you need to do is to orient it properly (or not, you can thread the insert once put in).? Heat the insert gently, and push it in.? You may want a fixture to do this to keep the centers aligned and the shaft perpendicular.
Tek molded the knob around the insert.
Harvey
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On 11/14/2021 7:53 AM, tony sayer wrote:
In message <[email protected]>, Larry McElhiney via
groups.io <lmcelhiney@...> writes
On Sat, Nov 13, 2021 at 08:16 PM, Harvey White wrote:
If so, throw it away and claim a tax writeoff.
tend to depreciate expensive equipment while it is in use?in order
to take the tax write off. ?When it is fully depreciated,
it can only be scrapped or donated, not sold. ?Otherwise, IRS gets
annoyed…
Very ecologically sound that, wonder if it was discussed at COP26?
suspect not!..
Magnus, Thanks for pointing out the right name of the suppliers a few
posts back, I reckon i too their entire supply of QTY 4 off 339A
knobs:).
Whilst on that subject those comprise of a Brass metal core and a
plastic moulding around them. Is it possible to use a 3D printer to go
over the brass metal former to "print" up a complete control knob at
all?...
