Damn, it says I've got to wait overnight before going onto step 8.
[Edit - Here's one I prepared earlier]
All that work for a non adjustable boom to fit a rather old looking and banged up Aerotech VMG.
Also I just hope he didn't pilfer some prepreg carbon from his work that was meant to go on the wings of a 737 destined for an Australian domestic airline.
While I admire the dudes conviction, at the end of the day it would be a poor imitation of a production boom in almost all cases, including that one. It's light because it's non adjustable and stiff because it has fairly large diameter tubing (compared to a lot of the newer booms). I think when you factor in time/result/cost 99/100 people would just go and buy a production boom :)
that aint prepreg, thats a dirty layup.
and that aint how i'd be doin it. WTF is all the unis??? and nothing on the bias!!!
Sorry if i offended you jwvi but yer i do have a lot of experience with composites: these include but are not limited to the following (however confidentiality agreements restrain me from talking about quite a bit of the manufacturing and testing i have done)
Car parts for:
a couple of these (full prepreg monocoque chassis) which took 1st and 2nd place in the F-SAE world championships in consecutive years. my engineering thesis was composite specific to these cars.
a few production runs of masts and booms for there guys
Haha, seems like composites geekery runs deep in the ws'ing community. I'm 3/4 of the way through my senior thesis, which is the design and manufacture of a composite monocoque chassis for a F-SAE car. Not an easy task to undertake solo, ANSYS makes me want to tear my eyes out. Anyway male plug should be ready end of the month, almost there.
On topic thou, cool boom. Pretty cost effective, not perfect but hey gotta start somewhere.
That's right bertie wtf are all the uni's and off axis. Even if there is no torsional load you still need bias fibres to transfer load from fibres under tension to those under compression also I know several composite engineers who wont design a laminate around a woven fabric due to crimp. stiched fabrics and uni's only
Brad
bvllsh!t.
nobody could make 125 dinghies in the shed - that's a lot
LMFAO
Hi there guys ! This is my first post in this Forum !
I am trying to figure out how to make a carbon boom like those that i found here.
There is also a third one from Peter Ifju, but there are no information about the construction.http://forums.windsurfingmag.com/showthread.php?t=684
@jwvi very nice construction.My problem is that i dont have a vaccum pump and my oven is big enought only for bread.You think is possible to use wet lay-up fabric ?
@Bertie it seems that you are an expert in composite. If you had a plan to make a boom which would be your approach?
p.s I have already three carbon booms , i just want to make one.