News for hackers. Stuff that matters.

A comment on Show HN: I built a CNC-machine from scratch, using 40x 3D-printed parts. Parent comment

Re:Show HN: I built a CNC-machine from scratch, using 40x 3D... by sokoloff on Wednesday November 03, 2021 @02:28PM (#29098537)
For a framer, 1/8” is precise enough. For a finish carpenter, 1/32” is precise enough. For a 3D printer, 0.004” is precise enough. For a machinist, 0.0005” is precise enough.
[ Parent | on HN ]
Re:Show HN: I built a CNC-machine from scratch, using 40x 3D... by curtain on Wednesday November 03, 2021 @02:58PM (#29098863)
0.004" is read as "four thou", and 0.0005" as "five tenths", as in five tenths of a thou, FWIW.

I only picked up imperial thanks to binging This Old Tony videos.

[ Parent | on HN ]
Re:Show HN: I built a CNC-machine from scratch, using 40x 3D... by sokoloff on Wednesday November 03, 2021 @03:14PM (#29099044)
If you enjoy https://www.youtube.com/c/ThisOldTony, you might also enjoy https://www.youtube.com/c/Clough42 https://www.youtube.com/c/Blondihacks and https://www.youtube.com/user/JohnGrimsmo
[ Parent | on HN ]
Re:Show HN: I built a CNC-machine from scratch, using 40x 3D... by mNovak on Wednesday November 03, 2021 @03:37PM (#29099297)
Unless it's PCB, in which case its "4 mil", as in milliinches, among the great bastardized units
[ Parent | on HN ]