21 Dec
2021
21 Dec
'21
1:08 a.m.
On Fri, 17 Dec 2021, Paul Koning wrote:
Interesting idea. A while ago someone posted a
picture of what looks
like a "go/no-go" gauge for DECtape reels. It is marked with the
dimensions of the two sides: 2.504-2.505 inches for the "no-go" end,
2.494-2.495 for the "go" end. So that tells us the hole diameter is
2.500 +/- .004. Can 3D printing deliver that sort of tolerance (with
hobbyist-price machines)?
That's huge four milli-inches, that's about 100?m. Hobbyist machines
usually have a Z (layer) resolution of at least 100?m and a position
accuracy of about 20?m. The specifications of my Adventurer 3 say 50-400?m
Z resolution, 11?m X/Y accuracy and 2.5?m Z accuracy.
For a spool it's the X/Y accuracy that matters (and the material of
course).
Christian