reusable blood splat effect?

colfaxrev

Member
The approach I'm taking is using an air compressor along with a clear hose/tube from home depot. I've seen this work for other low budget productions. I'm going to need to do a lot of shots with squirts popping out of a man in a suit.

I do NOT want to rely on comping in blood effects in post

anyway my question is, does anyone have experience in tube diameter and PSI rating on the air compressor and what effects to expect with this setup?

I saw a cheap air compressor for 70 bucks that was 100 PSI, is that enough?

I want to be able to push some fake blood in through a main tube that goes through some kind of splitter, and to smaller tubes. It is a shot gun blast so I want a few holes close together timed slightly differently.

I figure I can simply after the splitter have different lengths of tubing. Hopefully this will cause the time offset i am looking for

should I rent an air compressor with higher PSI than 100 PSI or is that overkill to send liquid fake blood flying?
 
I just tried using an compressor with 100 PSI and 6" of 1/4" plastic hose filled with Karo syrup and water mixture. The results are disappointing. While there is more than enough velocity, the spray is very fine and difficult to see. I tried it again at 20 PSI with similar results. It's so bad, its not worth filming and posting. The air has an atomizing effect that makes the blood spray too fine. Thickening the mix may make it better. Also a larger volume hose for more capacity.

So 100PSI is more than enough.
 
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