V Visitor Laser Gun Replica Prop - Idealized Version - Development & Improvements

[Father]

Is that a paint sprayer?

 

[the.rebel.agent]

Yes and no. It is a pressure paint tank or pot to transform into a pressure chamber. Spray gun is useless for that setup.

 

[Father]

What's it used for then?

 

[the.rebel.agent]

Theoretically to compress bubbles in your resin. That way you get microscopic bubbles in your final cast. You have to put the mold into the pressure chamber right after you poured the resin into the mold. Never tested it before.:unsure

 

[TheSt.LouisKid]

Coming along very nicely.

 

[darkjawas]

the main thing with that setup is needed the chamber pot bigger than your mold

 

[the.rebel.agent]

That's the problem. Gun is over-sized for this tank. Have to buy another tank for this and It is out my budget.:behave

 

[darkjawas]

we done it at the company i work at
glue and tape two home depot size 5 gal buckets top to top then on the
bottom end hot glue the top of the tank (the control vavles) it will be a temp use
with regluing and duct taping the buckets back together
likey will still have some air leakage .

 

[the.rebel.agent]

What do you think? Gray arrow shows the poured resin trip and cyan arrows shows the air vents outlets. Acrylic rod will be placed inside the mold.

Air vents were place in flat zones where is easy to cut them off and sand. Any better idea?

 

[darkjawas]

when i pour ct-v V pistols in the mold i pour from the top of the pistol
about where the scope would attach on pistol on larger hole for pour
and a 2nd one for air escape then add a slight one squeeze to puch air out

i can try your idea on the next pistol i cast

 

[the.rebel.agent]

This is the original mold:

It seems they poured the resin from the top, but I don't think It is a good idea given the final results everybody is getting without a pressure chamber.

 

[darkjawas]

thats pretty much the same way i pour our v pistols
i tryed the barrel pour idea but it failed to many air gaps formed in the
front secetion and lost most details of the raised bocks

tonight is going to be cheapy made vac chamber test of using air compressor and plastic conainter
one problem is the v pistol has so many sharp details
one prototype idea i have is making a 4 part mold then pluzzle piece them together

 

[Father]

I have no idea how any of this works but... when you pour it, if you have a smaller outtake hole and you have pressure behind the intake hole, wouldn't that work out the air bubbles?

Is there a way to set up a vacuum chamber that would remove all of the air in and around the mold and then inject the resin in with pressure?

Again... I have no idea what I'm talking about but I can kind of picture how it would work in my head.

 

[darkjawas]

What do you think? Gray arrow shows the poured resin trip and cyan arrows shows the air vents outlets. Acrylic rod will be placed inside the mold.

Air vents were place in flat zones where is easy to cut them off and sand. Any better idea?

Just tested your diagram in the 2nd mold of the V pistol
lost so much of the pistol due to air trapped in the
trigger area, clear rod area and .

i have yet to build n test a chamber pot

Have you started making the mold and what silicone are you using/looking to use?

 

[the.rebel.agent]

Not yet. Planning to use rtv 8001 silicone rubber. I will add more vents in the trigger area for sure add well at the top of the barrel

 

[the.rebel.agent]

I was able to buy this RTV silicon rubber for the mold:
Bluestar Silicones manufactures BLUESIL RTV 3325 for Applications General purpose and figurine molding, Building, Construction, National Heritage Conservation for Markets Moldmaking, Building & Construction

Will be doing it, If the Force is be me, during this weekend.

 

[the.rebel.agent]

Improved the prototype for mold box and air vents:

Will try this duting weekend.

 

[darkjawas]

post up a pic of your casting

i use smooth-on rebound 25 myself

 

[the.rebel.agent]

I won't be able this weekend. Have to wait 24 hs per side plus 72 hs before I can use the mold.

 

[the.rebel.agent]

Half mould done:

Have to wait to 9pm Argentina time to do the other half.