Fusion 360 Whitworth Threads

[Swarf MakerParticipant @swarfmaker85383]

That thread generator works really well Matt and is much appreciated.  As an archivist, my main use of Fusion is in reverse engineering old motorcycle parts and the native thread restrictions of Fusion are a signifcant inconvenience.  I have just tried your software and it will improve my workflow very significantly.  A full set of BSCy (CEI) threads as used by the cycle and motorcycle industries through the 20’s/30’s and beyond would be very welcome indeed!

Thanks again and Happy New Year.

[Nigel Graham 2Participant @nigelgraham2]

We need consider an extra point of design detail not often mentioned, but which I have seen raised in a very old text-book, so is not specifically a CAD matter:

Other than for 3D printing as discussed, or other special purposes, it’s not usual to plot ordinary screw-threads on normal fasteners or indeed things like small clamps using standard threads.*

However, there is a place for modelling fasteners generally, when designing from new or modifying an existing design; to ensure nut and bolt-heads’ fit without fouling other components, overhanging edges or being too confined to manipulate.

(It is sometimes right to snug a bolt or nut flat against a surface, to prevent it turning.)

 

This is an example, in Alibre Atom, I used to test fastener access before adding the other guide-bar and incorporating the finished sub-assembly in the engine’s design model. Standard M6 nuts, studs not yet of intended lengths; spanner sized from one picked randomly from the workshop. The test shows as intended, an ordinary spanner will turn the nuts at least a flat’s worth per iteration, clear of adjacent faces:

 

*Similarly, gears in assemblies are conventionally often shown simply by their pitch and addendum circles, the latter for example to establish clearances.

 

[Matt C BeechParticipant @mattcbeech]

Done, and implemented.  Also added BSB threads too.  I noticed Fusion already has the BSP, so not sure if you want them in there too.  Let me know.

M

[Author]

Posts