[rescue] Making SS20 drive brackets

[Michael Schiller]

Shawn:

That sounds great then! Count me in when you make them!

-Mike

Shawn Wallbridge wrote:

> For him to make a mold for me would be very little. Like 1% of what you are
> talking about. What you are doing is much different than we were thinking.
>
> He makes small resin Mech (robots) kits (www.thefourthaxis.com) and makes
> runs of about 30 pieces. He seems to do pretty well.
>
> shawn
>
> -----Original Message-----
> From: rescue-admin at sunhelp.org [mailto:rescue-admin at sunhelp.org]On
> Behalf Of Michael Schiller
> Sent: Saturday, May 04, 2002 1:04 AM
> To: rescue at sunhelp.org
> Subject: [rescue] Making SS20 drive brackets
>
> Shawn:
>
> While they'll only use about $1.00 of resin, what is the cost of making the
> mold going to be? I know that with cast iron, cast steel, etc. the mold (or
> pattern as they're called in the casting world) is one of the most expensive
> parts. In fact we decided to make an investment casting of one of our parts,
> and the mold for it cost $5000, but then the parts were really cheap after
> that.
>
> Another thing, a typical production run for any type of casting is usually
> at
> least 100 of them, with real price breaks coming in at the 1k range.
>
> the particular part we made as an investment casting (aka lost wax casting)
> had
> been made in Japan for the last 35 years or so, but their prices were going
> up
> too, so we were able to make 500 casting (including the mold), install a
> small
> machine shop, and machine half of the castings for less than we would had to
> pay for 100 of them from Japan!
>
> -Mike
>
> Shawn Wallbridge wrote:
>
> > Since this came up. I was wondering how much demand their is for SS5/SS20
> > drive brackets. I have been looking for some, but they all seem to go for
> > $15 on eBay, which seems a little high to me.
> >
> > I mentioned it to a guy at work and he has a CNC mill and makes resin
> > models. He said to bring one in and he would look at it to see what it
> would
> > take to make some. I showed it to him last week and he said they would be
> > easy to make. And he figures he can make a mold in less than a day. Once I
> > had the mold, I could make as many as I wanted. He estimated that it would
> > take about $1 of resin to make one. Even if I sold them on eBay for $10
> > (which I wouldn't) I could make quite a bit.
> >
> > What do you guys think?
> >
> > shawn
> >
> > -----Original Message-----
> > From: rescue-admin at sunhelp.org [mailto:rescue-admin at sunhelp.org]On
> > Behalf Of Bill Bradford
> > Sent: Friday, May 03, 2002 10:32 PM
> > To: geeks at sunhelp.org; rescue at sunhelp.org
> > Subject: [rescue] wanted: SS20 drive brackets
> >
> > I need a couple of SS20 drive brackets..
> >
> > Bill
> >
> > --
> > Bill Bradford     | "Fear leads to anger. Anger leads to hate.
> > mrbill at mrbill.net | Hate leads to using Windows for mission-critical
> > Austin, TX        | applications." -- What Yoda *meant* to say
> > _______________________________________________
> > rescue list - http://www.sunhelp.org/mailman/listinfo/rescue
>
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