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Search: Posts Made By: graymanandy
Showing results 1 to 11 of 11
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Forum: Framebuilders
08-27-12, 07:28 AM
Replies: 59
Views: 5,996
Posted By graymanandy

For structural bonding and coving (filleting)...

For structural bonding and coving (filleting) toughened epoxy is the best choice. It has more flexibility which helps in failure avoidance. It is also more expensive than a laminating resin and you...
Forum: Framebuilders
10-10-11, 06:48 PM
Replies: 59
Views: 5,996
Posted By graymanandy

Touche' Right on. I'm just explaining why...

Touche'

Right on. I'm just explaining why from my point of view it has a high chance of failure. The resin system I use (Mas) directs against using acetone for prep (with any surface). There...
Forum: Framebuilders
10-10-11, 06:19 AM
Replies: 59
Views: 5,996
Posted By graymanandy

Canaboo An epoxy matrix is about 95%...

Canaboo

An epoxy matrix is about 95% mechanical bond, hemp is full of natural oils especially the raw hemp fiber (that I used). I shouldn't need to state this but, you know that smell when you...
Forum: Framebuilders
10-05-11, 09:25 PM
Replies: 59
Views: 5,996
Posted By graymanandy

I agree that fiber orientation is all important...

I agree that fiber orientation is all important in a composite layup schedule. The "chop" method is borderline stupid. I've tried laying the hemp in using the orientation you describe for carbon...
Forum: Framebuilders
10-03-11, 06:11 AM
Replies: 59
Views: 5,996
Posted By graymanandy

...dead head sticker on a cadillac....lol

...dead head sticker on a cadillac....lol
Forum: Framebuilders
09-26-11, 06:15 AM
Replies: 59
Views: 5,996
Posted By graymanandy

I highly recommend putting something structural...

I highly recommend putting something structural in your laminate besides hemp. The Bamboo Bike Studio did destruction testing on hemp lugs and found that they stretch from repeated stresses in the...
Forum: Framebuilders
08-07-11, 09:33 PM
Replies: 4
Views: 950
Posted By graymanandy

2wheel chef It sounds like the tube was...

2wheel chef

It sounds like the tube was buckled (like the paper towel tube) rather than cracked, but there's no way to tell without having it my hands. If it were a crack that was straight and...
Forum: Framebuilders
07-22-11, 11:32 AM
Replies: 460
Views: 312,507
Posted By graymanandy

Okay here goes.

I'm on frame #6 which will be a women's cruiser with hemp lugs but here are some pics of the others

Andy


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Forum: Framebuilders
07-21-11, 06:21 PM
Replies: 59
Views: 5,996
Posted By graymanandy

Raleighsport, IMO--Useing a torch is only...

Raleighsport,

IMO--Useing a torch is only good on green bamboo. If it's too dry to start or if you singe a spot you will hear a light crackle sound and the tube will have a weak spot. By combing...
Forum: Bicycle Mechanics
06-15-11, 09:31 PM
Replies: 3
Views: 1,585
Posted By graymanandy

Hi Al1943, I won't ride it, it would...

Hi Al1943,

I won't ride it, it would probably ghost shift all over the place anyway. I'll look for the spacer.

Do you know why they space the frehub this way, I thought the 9/10 speed was...
Forum: Bicycle Mechanics
06-15-11, 07:55 PM
Replies: 3
Views: 1,585
Posted By graymanandy

9/10 cassette spacer

I recently purchased some Mavic crossride disk/ub wheels and installed an old Shimano XTR 9speed cassette. It has play, I assume there's a spacer could anyone confirm this?

thanks

Andy
Showing results 1 to 11 of 11


 
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