More cup holder, et al

General Composites Discussions Showcase
#1

Some closeups of my prepreg cupholder for my bike. I replaced the brass hardware with EA9394 epoxy I had left over. Was not a good idea, since the epoxy is grey.
Eh.

The others are: 2 mounting rings, and said mold. An 3 of my recent molds. A radome, a center hub for a 4ft parabolic dish, and a test tube…it failed…horribly. Now I need to figure out a new idea for some turnsignal housings. Might just clear cast them.





http://home.comcast.net/~dmr220/rings.jpg
http://home.comcast.net/~dmr220/3molds.jpg

#2

I want to see install pics :slight_smile:

#3

whats the radome for? Military or comercial use?

#4

Right now, i THINK the plan is military contractor. It’s a “side” project right now, and I don’t know anything besides “Here, make a mold…you have time”
Hee…yeah, I don’t care, it’s work :slight_smile:

The original is used for both military and commercial antennas.

#5

http://compositeforum.werksberg.com/showthread.php?t=972
if you are talking about the cup holder :slight_smile:

I used a pipe clamp to hold it on the bars. Still can rotate, not sure how to fix that, besides getting the machine shop to make me a split mounting block with bolt holes! :slight_smile:

The rest, well, still working on prototyping.
The first outside segment (the white still molded piece in the BG of the 3 molds)
All I can say is…back to the drawing board :frowning:

#6

Very cool. Ive been in radome hell for the past few months. Although weve been designing the internal covers also.

Just out of curiosity why didnt you make the cup holder one piece?

#7

Internal covers? What kind of application are you doing? Ground based? I saw a small catalog of Pacific Radome…they have fun products :slight_smile:

Well, besides not having the thought to do it like that in the first place. Saddly, I still didn’t until you said that. It was kinda hard enough to get a large angle sheet (for the mold) from the shop as it is :slight_smile: I’ll try again in a month.

#8

For jets, although our parts will never be in the air.

We’ve been making radome covers (as test equipment) for newly installed radar equipment. So they require a outer and inner structure.

I gotcha. Although a one piece part wont look as cool. The brass kind of gives it some life. Enzos dashboards are assembled the same way. Visible allen head screws showing through the carbon.

#9

Wooo…radar systems. I just read a Microwave Journal article about phased array systems…damn…SOB’s are as big as buildings!
But that might be over your head now. I’ll shutup.

Yeah, the grey epoxy that is there now, just doesn’t look good.
BUT, since I have started building tons of brackets with my scraps, I might as well just make…ANOTHER ONE! Oh, and sell the first :wink: