Big_oll Posted April 19, 2006 Report Share Posted April 19, 2006 I need to know how far apart the holes are on 4 bolt mounts, not the ones that are around 100mm that go across the frame, the ones that go up the frame. I've measured it to be around 45mm between centres, could anyone please comfirm this?I've got the design for a 4 bolt booster and need to be certain of where to put the holes, i'm going to CNC it tomorrow so it's pretty urgent!Cheers guys,Oll Quote Link to comment Share on other sites More sharing options...
the judge Posted April 19, 2006 Report Share Posted April 19, 2006 Just went and measured mine and yes you're not blind they are 45mm apart Quote Link to comment Share on other sites More sharing options...
Shaun H Posted April 19, 2006 Report Share Posted April 19, 2006 I'm sure Steve at Heatsink has made alot of posts about measurements for 4 bolt mounts around the time he was developing his 4-bolt booster. Have a search through his posts and I'm sure you'll find a very accurate measurement for it. Quote Link to comment Share on other sites More sharing options...
Heatsink Posted April 19, 2006 Report Share Posted April 19, 2006 It's actuallly 46mm, although 45mm is often wrongly quoted:Hope that helps to clear it up once and for all!Steve Quote Link to comment Share on other sites More sharing options...
the judge Posted April 19, 2006 Report Share Posted April 19, 2006 It's actuallly 46mm, although 45mm is often wrongly quoted:Whoops, sorry for wrongly quoting it Quote Link to comment Share on other sites More sharing options...
Big_oll Posted April 21, 2006 Author Report Share Posted April 21, 2006 Just got the old vernier calipers out, measures in at 45mm between centres??? Now i'm confused!?!?!?!?!?! Quote Link to comment Share on other sites More sharing options...
Robwalker Posted April 21, 2006 Report Share Posted April 21, 2006 Go 46mm, if heatsink have made and sold boosters at 46mm then its got to be 46mm surely!Rob Quote Link to comment Share on other sites More sharing options...
Big_oll Posted April 21, 2006 Author Report Share Posted April 21, 2006 Good point. Think i will do, thanks for the help guys, Oliver Quote Link to comment Share on other sites More sharing options...
Heatsink Posted April 21, 2006 Report Share Posted April 21, 2006 Sorry if I seemed a bit forthright earlier - I didn't intend to!For further verification, the Echo Control CNC booster is also 46mm, as is the older and thinner version. I think there's naturally a tolerance on the relative positioning of the tapped holes for mass produced frames, and it could be out by as much as + or - 1mm depending on accuracy of manufacture. It doesn't cause a problem though because the booster sits so high in the assembly.For Vee adapters on the other hand that sit directly onto the mounts, because of this slight variation it was necessary for me to add a slot to one of the holes of my new design.I don't know if you can make the photo out, but the silver frame here shows an exact 46mm distance on the right side. Just realised that I let the booster slip on the other side whilts I was balancing it on there with another one![attachmentid=3987]Definately 46mm, or in football parlance, I'm 110% sure it's 46mm.SteveP.S. All the best with your booster making Good point. Think i will do, thanks for the help guys, Oliver Quote Link to comment Share on other sites More sharing options...
Big_oll Posted April 22, 2006 Author Report Share Posted April 22, 2006 Cheers buddy! Truly a superstar and by far the most helpfull person on the forum!Will get some pictures up when i have some spare time at work to get it on the old milling machine.cheers,Oliver Quote Link to comment Share on other sites More sharing options...
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