SpudFiles

jackssmirkingrevenge wrote:

POLAND_SPUD wrote:I saw them somewhere and I thought 'damn these would be useful for an ignition module when I eventually get round to building my own hybrid in 2073'

Damn I wish it was as easy as you say - don't worry now I have some spare time but my fridge compressor has broken down... guess I need to find a new one and spend some extra $$$ on it

shock pump and syringe don't need that much $$$

with a syringe, you can make big Mix?

Petitlu wrote:with a syringe, you can make big Mix?

In your case with a 200mL chamber, you will need to put 7mL in the chamber per mix. This means that 10x needs a 70mL injection, so you need a pretty big syringe

You can go up to 28x with this method, and for that number you don't even need a syringe - simply purge the chamber with fuel at atmospheric pressure, then pressurise it with air to 27 bar.

ok
A28x is the volume of the chamber, but to purge the air I need to put the BP in the long time chamber without bursting disc and then close all right?

That's basically it. Connect fuel supply, purge, close off supply, add burst disk, pressurise to 27 bar, boom

I love the boom!
Thank

I have not been able to test Mix20 today because of bad weather.
I'll do it tomorrow

How did you measured the effective chamber volume so precisely??
I always had mix problems that´s why I´m sticking with pneumatics together with my fridge compressor

I measured with water!
the room and I meter goes like this:
weigh the whole Chamber + + flexible connector (which will contain all of the air) with an accurate scale (0.1g)
fill with water and weigh all again, the difference in weight gives the cc

the electrode :

I don´t quite understand how the electrode works... Does the spark happens between the pin and the chamber wall?
I was thinking about fill the chamber with water using a big syringe, will it work?

I used a syringe to put water to be precise !

the spark occurs between the copper wire (blue) and the fitting which is screwed into the chamber

Ah I though so, Thanks Petitlu!
So, time for me to build hybrid

You made we a Mix80! 4" caliber !

Then I´m going to launch myself to the moon

In France they say "I'll get the moon" when you are ready to do anything!