Brit Progress - Better Fluting!

[Deleted]

The flange radii are OK, flap over! I looked in the ME Handbook and the flange should be 0.050" for a 3.5", which it is. The rim radius should be 0.030", again OK. Thanks again Baggo.
JB

[welshy]

Excellent work JB should be a very nice loco when finished
Mike

[redmog]

Simplyloco's Castellated Nuts.

Complex -
I found this from the past.
It might give you some ideas,
but it is for 3 1/2" not 5"

Anyone explain how to link threads? or do I mean 'Posts'.

Dec 30, 2008 15:41:07 GMT simplyloco said:

LBSC specifies an ordinary 1/4"A/F nut and a washer, so this slightly more elegant approach would seem to be in the spirit of the thing!

PB1. 0.090" thick nut to go on 3/32" stud. 0.30dia x 0.025 thick 'built in' washer. 0.25 A/F nut. 0.040 slots.
Regards
JB


Another View


Slotting the nut.

[JDEng]

Let me say at the outset that the standard of work shown on this thread is first class!

Just to be pedantic though, the nut shown in the previous post is actually a "slotted nut"; a "castellated nut" or "castle nut" is slightly thicker and the part of the nut where the slots are cut is relieved back to remove the flats and is therefore circular. It looks like a castle's turret from the side.

Regards,

John.

[Shawki Shlemon]

Technically John is wright but a slotted nut is sufficient for this application as there is very little force or tension on the nut .

[JDEng]

Technically John is wright but a slotted nut is sufficient for this application as there is very little force or tension on the nut

Couldn't agree more, I wasn't suggesting the application was wrong merely that the nomenclature for the nut was technically incorrect.

Regards,

John.

[fostergp6nhp]

Im now going to be picky. The full size nuts have 8 slots rather than 6 although the nut has 6 flats.