Can this be resin cast the way I want?

[Sulla]

I want to scratch build this wall section in styrene and resin cast duplicates from a single mold since I need to make 8 total. These will be about 7” – 8” tall and maybe 1/2” thick. The right side (in the picture) will be unseen so I was wondering if I could use it as an open pour point and make a single cast mold. (see pic 2) With this method there should be no undercuts, just a lot of material.

Is my item too big to cast like this? Will it destroy the mold taking it out so I can’t have multiple pulls from the same mold, even with mold release? It only has to last through 8 pourings.

 

[00MrNotWrong00]

It might be less expensive to make all eight out of sanded plywood and two coats of primer. It doesn't look to complex, cutting them out on a band saw could probably take less than an hour.

Depending on how sharp you want your corners, this may be a good piece to vacuum form.

I have a bunch of half inch MDF laying around. If they are only 7in x 8in and your drawing is accurate enough I could make them for you if you want.

Let me know.

 

[TOSPHASER]

I want to scratch build this wall section in styrene and resin cast duplicates from a single mold since I need to make 8 total. These will be about 7” – 8” tall and maybe 1/2” thick. The right side (in the picture) will be unseen so I was wondering if I could use it as an open pour point and make a single cast mold. (see pic 2) With this method there should be no undercuts, just a lot of material.

Is my item too big to cast like this? Will it destroy the mold taking it out so I can’t have multiple pulls from the same mold, even with mold release? It only has to last through 8 pourings.

Yes sir! it will work just fine!!! :thumbsup

 

[Sulla]

It might be less expensive to make all eight out of sanded plywood and two coats of primer. It doesn't look to complex, cutting them out on a band saw could probably take less than an hour.

Depending on how sharp you want your corners, this may be a good piece to vacuum form.

I have a bunch of half inch MDF laying around. If they are only 7in x 8in and your drawing is accurate enough I could make them for you if you want.

Let me know.

Thank you very much for your kind offer.

The corners need to be sharp - too bad too, I've been itching to use my new vacuuform machine. And the drawing I posted is a very rough draft. It will have a bit more detail than what I threw together in paint for this post. It will even have some more space carved out of the front for small light boxes. I don’t even have the dimensional drawings done yet, but I appreciate your offer. Using something other than styrene is a really good idea, I need to think outside the box a little here.

What I am trying to make are these Defiant bridge station dividers:

 

[tango'd fett]

If you go the resin route you can also add filler to the casts which will reduce the amount of resin you need. Bag of filler is very cheap:cool. You could also stick some plastic sheet in too to fill it out.

 

[Sulla]

If you go the resin route you can also add filler to the casts which will reduce the amount of resin you need. Bag of filler is very cheap:cool. You could also stick some plastic sheet in too to fill it out.

Good tip, thanks. I have only rudimentary experience with resin casting, though I thought it was a blast and a great medium to work in.

 

[00MrNotWrong00]

They look more like they are 7 feet than 7" . Your talking about the beams between the chairs right ? Are you doing this to scale or are you doing a miniature ?

 

[Sulla]

They look more like they are 7 feet than 7" . Your talking about the beams between the chairs right ? Are you doing this to scale or are you doing a miniature ?

:$
Scratch building a miniature. Not sure of the scale yet.

Did some test building in 2007 with the captain's chair and opps, but I want to go bigger than these.

 

[00MrNotWrong00]

OH MY GOD !!!!! :eek :eek :eek Sick work man !!!!! Very nice build.

 

[Darth Lars]

How about acrylic? Routing or laser-cut.

 

[renaissance_man]

Those models are absolutely brilliant. If the same attention to details is scaled up to the real thing, you are going to have one hell of a "tough little ship". "Little"?!

 

[Reactor drone]

It should work fine the way it's drawn.Just remember to clamp the mould into the mould box again during the pours to avoid sagging as it fills with resin.

 

[Sulla]

It should work fine the way it's drawn.Just remember to clamp the mould into the mould box again during the pours to avoid sagging as it fills with resin.

Goog idea, thanks.

How about acrylic? Routing or laser-cut.

Also a good idea I hadn't thought of. I can draw some things up after a little test building in foam board and get a quote from my laser cutter...