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Dovetail Cutters

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Trevorh	30/10/2012 09:40:29
316 forum posts 89 photos	I am just starting the HH Grinding rest and have what may seem to be a simple question, the dovetail cutter, when we say 30 degree or 60 degree from what plane is the angle talking about? What I mean to say is - is it 30 degree from the horizontal or the vertical plane? Hope I have explained myself thanks
KWIL	30/10/2012 09:57:38
3681 forum posts 70 photos	Measured up from the horizontal plane. Think about it, if the other way around, the resulting sliding assembly would be very shallow.
Trevorh	30/10/2012 10:09:18
316 forum posts 89 photos	To be honest thats what prompted the question when I was looking at it - it just looked wrong so I then started to think which way was the dovetail measured thanks
KWIL	30/10/2012 10:12:51
3681 forum posts 70 photos	Beware, not all "60 degree" dovetail slides are in fact 60, some are 55!
Trevorh	30/10/2012 10:22:29
316 forum posts 89 photos	In this particular case would that really be an issue as the same cutter would be used to create the 2 mating parts, I understand the argument for getting what you ask for ie 60 degree should be 60 degree but as long as I use the same cutter it shouldn't really make a difference - or would it?
KWIL	30/10/2012 10:42:54
3681 forum posts 70 photos	No, get a 60. What I was pointing out that some machines that look like they have 60 degree dovetails in fact have 55, don't ask! Sussex tools a good source.
Trevorh	30/10/2012 10:52:15
316 forum posts 89 photos	Thanks for the tip Kwil I will give them a ring thanks for the advice
Andrew Johnston	30/10/2012 11:36:49
7061 forum posts 719 photos	Posted by KWIL on 30/10/2012 10:42:54: What I was pointing out that some machines that look like they have 60 degree dovetails in fact have 55, don't ask! I won't ask, I'll just say Bridgeport. Andrew
KWIL	30/10/2012 12:10:35
3681 forum posts 70 photos	And M300

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