6 year return

[mikek]

ok its definitly noyt my best work and all i had was 10mm tube to play with but i have finished setting up my torch:

[hawkglass]

Bobcat or cricket?

[mikek]

bobcat

[GhostWorks]

Rage that thing! Lookin forward to your work!

[hawkglass]

Heck ya get some flame pics up too

[Shattered Dreams]

whats the cfm on that fan?
I think you need better ventilation, no way your moving enough air with 4" duct.

[mikek]

its a blower from a large inflatable funhouse.. its moving tons of air especially since the torch is directed into the inlet

[mikek]

tonights piece with the last piece

[mikek]

wanted to play with a little color last night:

[funksizzle]

funhouse fan??? You clown around on the side mike? 6 years is a long time to without handmade goods. I can hardly survive a trip to the gym without a new cig holder and necklace.

[Shattered Dreams]

so whats a "ton of air"?
still don't think you are going to move the correct amount through 3-4" ducting.
give us some numbers.

keeping pressure in a bouncy house is not the same as evacuating toxic gases from your work area.
just trying to keep you safe.

[mikek]

i understand, its cfm is not listed its the same blower i used before. problem that i have been having is not enough make up air, which can be fixed by opening another window in the basement
how many cfm do i need for a bobcat? might be able to borrow a airflow gauge.

[Shattered Dreams]

while a larger torch is releasing a larger volume of gases that needs to be accounted for,
a good deal of the ventilation required comes from needing to evacuate/refresh the air in your work environment so you know it is safe to breathe.
even a small torch can cause the glass to release stuff you don't want to breath.
it all comes down to how efficiently you can remove the majority of the gasses/fumes from the torch, and also any remainder from your entire work area.

id say with your setup you may remove a lot of the majority of stuff coming right from the torch, but once you move away from the funnel the airflow would drop and you may not be pulling the fumes in. some people recommend a smoke bomb test, have you ever tried that?

ive seen a formula around that says about 100cfm/ square ft. of face opening area, but that's for a hood.
and a hood may be more efficient at capturing stuff that otherwise may escape and mix in with the air your breathing.
the smallest work area is going to be about 2x4 at least, so theres 8 sq ft.
id look to have no less than 800 cfm for a single spot, up to about 1500 with a bigger torch, fuming and colors, and wanting to stay healthy.

maybe if you can find a model # you can look up some specs.

[mikek]

ok the only smoke bombs that i have are large ones and colored (blue red orange etc) so im not setting one of them off in the basement. but i did take some cardboard and lit it. the vent sucked the visible smoke up from behind my torch and all areas of the table, i am comfortable with this. model number came up with nothing but listings for sales. and since i used this fan to clear out my garage (about 900 sq feet) of smoke from stick welding and it cleared it in about 2 minutes im fairly certain it moves more than the 800 cfm i would need.
eventually i plan on upgrading what ive got, i am quite certain that i suck up much more at my day job than this blower does not move away from me.