Tables and Dimensions Of Useful Things

No 3d printing inventor would get far without good references.

Scroll to the bottom for tables.

Icon  Name                           Last modified      Size  Description
[PARENTDIR] Parent Directory - [   ] 1963_FDR_F2018.pdf 2019-01-15 18:03 1.0M [IMG] 200-spring-assortment.jpg 2017-07-12 18:02 280K [IMG] 2x16lcd-dimension.jpg 2017-07-12 18:02 68K [IMG] 4-11-16-ovenbox.png 2019-02-05 17:15 57K [IMG] camera-plate.gif 2015-10-15 11:42 23K [IMG] camera-screw-odd.jpg 2019-02-01 18:23 84K [IMG] camera-screw-rc5.jpg 2019-02-01 18:41 80K [IMG] decora-plate.jpg 2017-01-07 18:48 64K [IMG] drive-gear-mk7.jpg 2015-01-26 20:43 61K [IMG] fan-40mm-dimension.gif 2017-07-12 18:03 22K [IMG] fan-80mm-dimension.jpg 2013-05-03 06:48 45K [IMG] linear-lm8uu-dimension.jpg 2016-03-31 09:06 43K [IMG] makerbot-endswitch.jpg 2017-07-12 18:20 42K Top secret. Ssssh. [IMG] metric-nut-dimension.gif 2017-07-12 18:03 3.0K [IMG] microswitch-dimension.jpg 2017-07-12 18:03 25K [IMG] motor-nema17-dimension.jpg 2016-03-02 21:35 15K [IMG] motor-nema23-dimension.jpg 2013-03-30 07:41 52K [IMG] nema10-dimensions.jpg 2017-03-13 21:12 40K Measurements and Tables [   ] oring-imperial.pdf 2017-06-22 18:30 228K [   ] oring-metric.pdf 2017-06-22 18:30 722K [   ] popbottle-pco1810.pdf 2017-03-13 11:29 163K [   ] popbottle-pco1881.pdf 2017-03-13 11:29 499K [IMG] pushfit-male-diagram.jpg 2017-07-13 22:18 46K thingiverse.com/thing:2434393 [IMG] pushfit-male-dimension.jpg 2017-07-13 22:18 125K thingiverse.com/thing:2434393 [IMG] RC5_dimensions.png 2019-02-06 17:21 5.7K Measurements and Tables [IMG] thread-diagram.png 2019-01-15 16:56 23K [IMG] thread-profile-acme-interna..> 2018-06-19 21:27 12K [IMG] thread-profile-acme-stub.jpg 2014-10-05 06:30 92K [IMG] thread-profile-acme.jpg 2019-01-03 07:33 16K [IMG] thread-profile-nh.jpg 2018-09-15 22:46 559K [IMG] thread-profile-nh.png 2019-01-15 18:02 106K [IMG] thread-profile-npsh.jpg 2018-05-31 15:04 9.3K [IMG] thread-profile-npt.gif 2018-04-11 21:12 25K [IMG] thread-profile-trapezoid.jpg 2016-07-27 13:28 49K [IMG] thread-profile-uts.png 2017-07-23 15:15 13K

Tables

All sizes except threads in mm.

Common Metric Bearings, mm
TypedDBWhere / Why Used
6088227Skate bearing, cheap easy and strong. Used everywhere. Fits 5/16" rod very well.
6255165Extruders, gearboxes, little things.
6355196Bigger, cheaper, uglier 625
6244135Can kludge to fit #8 SAE bolts.
63331353mm bearings were sometimes used in direct drive extruders. Rare and expensive.
6233104
603395

Linear Bearings I Have Known
TypedDLNotes
LM8UU81524Surprisingly, the go-to for hobby projects. 8mm rod is very flimsy.
LM10UU101929 
LM12UU122130 
KH1228121928 Used in the mutated darwin sold by BitsFromBytes. The 12mm rods were the best part of it.

Common Screws in North America
TypeKnown ByUse
M3-0.5Little Computer ScrewCDROMs, laptop HDDs, some computer cases, etc. Metric, in my country!?
#4-40VGA ThumbscrewVGA, DVI, RS232, fit-nothing junkpile lingerers.
#6-32Big Computer ScrewFull-size HDD's, computer cases, electric outlet covers. Extremely common.
#8-32Little Electric Panel Screw 
#10-32Big Electric Panel Screw 
3/8", 7/16", 5.5mmFan ScrewSelf-tapping screw. No clear standard but the 4.3mm-ish holes they jam into.
3/8" 32TPICoax connector, F Connector
1/4" 36TPISMA connector, wifi connector
1 1/16"-11.5 NHGarden Hose, North AmericaSee NH below.
3/4"-14Garden Hose, Europe
3/4"-5 ACMEBroom HandleTolerances vary wildly. See here.
PCO1881Pop-bottleSee file for far too many details.

Calculated Profiles for Truncated Threads
Type A H1 H2 Calculated Coordinates
P1P2P3
UTS 60° (3/8)*0.8660 (1/4)*0.8660 0.250000, 0.00000 0.562498, 0.54125 0.687509, 0.54125
Unified Thread Standard -- all normal nuts and bolts, metric or not. 0.8660 is the height of the 60° triangle.
NH 60° (3/8)*0.8660 (3/8)*0.8660 0.1250, 0.0000 0.5000, 0.6495 0.6250, 0.6495
"North American garden hose". Surprisingly similar to UTS but more symmetric. Again, 0.8660 is the height of the 60° triangle.
Trapezoidal 30° 1/4 1/4 0.3660,0.0000 0.5000,0.5000 0.8660,0.5000
"Metric ACME" is probably this.
ACME 29° 1/4 1/4 0.3707,0.0000 0.5000,0.5000 0.8707,0.5000
Leadscrews with imperial measures are probably this.
Stub ACME 29° 3/203/20 0.422415, 0.000000 0.500000, 0.300000 0.922415, 0.300000
Is there a 'stub metric' too? It is a mystery.
NPT 60° 0.400 0.400 0.0381198, 0 0.508988, 0.815568 0.547108, 0.815568
NPT is of course special: It's tapered an exact 1.78333°, equivalent to 1/16" rise over 1" run. The given profile has been offset to include that taper without altering any tooth angles, but there is an offset that must be applied in use as well. For every turn of thread, you must add tan(1.78333°) to the Y value. So, P4 would be [0,0.0311351] instead of [0,0], etc.
OpenSCAD Formulae
function profile(A,H2,H1)=let(M=tan(90-(A/2)),
        X1=((M/2)-(H2*2))/M,
        X2=((M/2)+(H1*2))/M,
        OFF=-X1*M) [
    [X1+X1,OFF + M*X1],
    [X1+X2,OFF+M*X2],
    [X1+2-X2,OFF+M*X2] ]/2;

THREAD_UTS=profile(60, (3/8)*0.8660, (1/4)*0.8660);
THREAD_NH=profile(60, (3/8)*0.8660, (3/8)*0.8660);
THREAD_ACME=profile(29, 1/4, 1/4);
THREAD_TRAP=profile(30, 1/4, 1/4);