Q:

New, improved, just like DAZ!

Finally sussed how to do a taper. I’m now getting around 1030fps with 10mm less spacer (20mm fitted), which is a vast improvement. That’s having changed from a 5mm aperture with 4mm of rod to 5.45mm aperture with 4mm of rod. Doesn’t sound like much difference, but that gives a vacuum force of 11.18 instead of 7.04. So shorter duration but more air. It’s interesting how these variables stack up…

30mm of spacer.
2800psi.

5mm aperture + 4mm rod = 7.04v = 930fps
5mm aperture + 3mm rod = 12.54v = 1000fps
5.45mm aperture + 4mm rod = 11.18v = 1100fps

It’s a fine balancing-act of give & take.

Anyway, obligatory pics:

Mods/Machinists

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Viewing 7 replies - 1 through 7 (of 7 total)

Stowford Press 😀

quote sawtime:

Lang-
Hey, I need some good advice for some cider, here in the states, any Rec. would be much appreciated.

SAW

Scrumpy

Ive been guzzlin “pear cider”
It tastes good. :18 :18

That valve is a good one, great job Lang.

Tapir? kinda looks like a small pig, I think. funny lookin snout though.
Lang, you cutting tapir with the compound?

Lang-
Don’t know what the hell you are talking about, but, taper, yes that sounds good 8) 8) 8) 8) 8)
Someday you will succeed my man, keep it up, you will find it 🙂 🙂 🙂
And obviously have a lot of time on your hands to figure that sh-t out.
Hey, I need some good advice for some cider, here in the states, any Rec. would be much appreciated.

SAW

Viewing 7 replies - 1 through 7 (of 7 total)

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