Re: Centering Bellows Update

Off vector topic, but would the bellows for Computer Space be possible?
What is the mold cost?

John :-#)#

At 10:21 AM 6/25/99 -0600, TomW wrote:
>Gang,
> Should be two more weeks till the centering bellows are done.
>The other night, I picked up the finalized metal mould for the casting, and
>I ordered the release agent the other day, so as soon as I get that, a
>casting
>we will go. Things I need to do are:
>
>1. Wait for release agent, all the normal molding agents that I've ever made
>in
>the past, don't work with this stuff, it sticks to anything.... So I had to
>actually buy the correct stuff.
>
>2. Hand sand mould to clean up burrs etc.
>
>3. Cast away, the only drag is, It take 24hrs to set, so thats one a day
>with one
>mould....
>
>4.Final pricing, still haven't figured that out yet, should be around 10-12$
>each.
>
>I've got some pictures of the clay mould, it has some light curves in it to
>insure the rubber
>bends where it needs to. The metal mould (not pictured) is angled, with
>additional rubber races to insure
>that it stays in the stick assy.
>
>www.enteract.com/~twisnion/PIC00030.jpg
>This is the first one out of a clay, hand made mould to test the shape.
>The white on the left is the actual bellow before trimming.
>
>www.enteract.com/~twisnion/PIC00031.jpg
>This is the bellow, after trimming on the stick, I was sizing the inner
>hole, needed a little adjustment...
>
>www.enteract.com/~twisnion/PIC00032.jpg
>Putting it in the stick holder, oops, upside down, but you get the idea...
>
>
>Overall, the tension was really good, a little softer than the rubber one I
>had, but that
>could be due to the old rubber hardening. The metal mould has been adjusted
>to increase the tension a
>bit, and I added a few inner races of rubber to insure that it stays in the
>slot. The first one I made was fine,
>then I started to experiment trimming rubber away, and when it would flex,
>it would pop out of the
>slots that held it, thus the mods.
>
>As for durability, this stuff is used to make car motor mounts, so it should
>be ok, I've been bending it
>180degrees for a while now, and it has not cracked, and impossible to tear
>without tools...
>
>TomW
>
>
>Thats the scoop...
>
>TomW

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Received on Sun Jun 27 02:22:09 1999