Firefly Crankshaft issue 4434

Firefly Crankshaft issue 4434

This topic has 7 replies, 3 voices, and was last updated 21 July 2012 at 20:11 by JasonB.

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21 July 2012 at 10:25 #94910
JasonB
Moderator
@jasonb
In the Text Frank says to put a 60deg chamfer into the open end of the 8.5mm hole but none is shown on the drawing.

He also states a fairly exact 16.2mm for the raised area wher the shaft meets the web, again no dia given on drawing.

Any comments Glenn?

J
Advert

21 July 2012 at 10:25 #37546
JasonB
Moderator
@jasonb
21 July 2012 at 11:07 #94913
Mike Wainwright
Participant
@mikewainwright87512
Jason

View on Arrow B shows the 16.2mm Dia

Do you know a supplier that will do a short length of EN8 for the crankshaft
21 July 2012 at 12:46 #94920
JasonB
Moderator
@jasonb
Well spotted that man.

I bought a foot of 30mm from M-machine as it was cheaper than a foot of 1 1/8" but they will probably do you a shorter length if you ask.

I've just got to upload the last few photos and will then add the descriptions to my thread.

J
21 July 2012 at 17:32 #94927
Mike Wainwright
Participant
@mikewainwright87512
Thank you Jason.

I will order some this week.

Mike
21 July 2012 at 18:06 #94930
JasonB
Moderator
@jasonb
Mike, if you have not got the HE15 for the conrod yet they also sell that by the inch.

J
21 July 2012 at 19:54 #94935
Sub Mandrel
Participant
@submandrel
Jason,

I finally looked at that M-Machine link – thanks for pointing me that way.

Neil
21 July 2012 at 20:11 #94936
JasonB
Moderator
@jasonb
They have a good range and I've never had problems with them. They don't have full web shopping but I e-mail a list of what I want and ask them to phone for card details once the order is made up, which they do.

J
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