Vent hood ??

[glassparman]

OK, so I usually open my big shop door and setup my casting at the opening so I'm not breathing fumes. I've been dreaming up a way to install an overhead range hood so I can keep the door closed as my shop is heated and air conditioned.

Show me pictures of what you have setup indoors . . . please!

Mike

 

[fiver]

ain't got one.
seein as how I just got a pot of melted lead and no fumes to deal with I don't need one.

 

[Dimner]

I built my own...

Using an inexpensive inline greenhouse type fan I got off amazon. I have been putting off making one of these for a couple years and I wish I had done so sooner. I cast more often now since it is so easy and I can do it in any weather.

 

[BBerguson]

Sorry I don’t have a picture. My wood shop has a dust extraction system that dumps outside. I use a little (10 inch maybe) squirrel cage fan that hooks directly into my dust collection with a 4 inch hose. It sits next too my lead pot with the bottom of the fan at about the top of the pot. I use wax to flux the lead and the fan grabs all of the smoke so I know it’s working. If I happen to smell any smoke or fumes, I turn the dust collector on. It’s a Grizzly with a 2hp motor and it really sucks! That’s my cold weather setup, in the summer, I move my casting outside.

 

[462]

Okay, I'm going to scoot out to the very end of a very skinny limb on a very old and very dead tree. The temperatures at which we cast bullets do not create harmful fumes.

Perhaps 10-years-ago, at that other place, there was a discussion about this. Some guy, who claimed to have some sort of scientific background, said that molten lead fumes aren't harmful till the 1200-degree F. range.

Lead's toxicity is via ingestion.

I read it on the Internet . . . if it ain't so, I stand corrected.

I've been rendering wheel weights, casting and handling lead bullets for only about 12-years. A few years ago, I asked my doc to request a lead level test, in addition to the yearly regular blood tests. Result came back 100% negative.

 

[glassparman]

I was more thinking about any arsenic or other impurities in the lead but as BB said above, I also want to vent out the smoke from wax.

My shop is fully insulated, drywalled and the works. The smoke smell hangs for days.

 

[Glaciers]

Well here's my set up. Kitchen range hood left over from a job. Came with a light and two speed fan, which works well when flux is in high gear smoking. Works well, the shelving helps contain the smoke.

 

[Brad]

I have garage doors. They don’t get opened in the winter when it is too cold.

 

[fiver]

if that smell bothers you,,, just burn some popcorn, it'll go away right quick.
this also works to disguise lube making in the kitchen.

 

[Brad]

Smell? If it weren’t for the smell thru the house my wife would worry that we were running out of bullets.

 

[Dimner]

Okay, I'm going to scoot out to the very end of a very skinny limb on a very old and very dead tree. The temperatures at which we cast bullets do not create harmful fumes.

Perhaps 10-years-ago, at that other place, there was a discussion about this. Some guy, who claimed to have some sort of scientific background, said that molten lead fumes aren't harmful till the 1200-degree F. range.

Lead's toxicity is via ingestion.

I read it on the Internet . . . if it ain't so, I stand corrected.

I've been rendering wheel weights, casting and handling lead bullets for only about 12-years. A few years ago, I asked my doc to request a lead level test, in addition to the yearly regular blood tests. Result came back 100% negative.

As others have said, it's not necessarily for and 'lead fumes' but it is for the smoke when fluxing. Just try sometime bullet casting and fluxing in an enclosed room and see how it goes ;-)

I have garage doors. They don’t get opened in the winter when it is too cold.

The garage is where I started this winter. When the temps got into the 20's (even with the garage door closed) the PID wouldn't work correctly unless I brought the control unit into the house to warm it up. Which means I needed to unplug the pot from the PID, warm up the pot, unscrew the thremocoupler from it's holder in the pot, bring the PID into the house, wait 25 minutes for it to warm up, take it back out, re-attach the thermocoupler, plug the pot back into the PID, wait for the PID to get the pot to my desired temp.

After one time of that 1.5 hour startup sequence, I moved inside.

 

[Glaciers]

Brad you married well

 

[CWLONGSHOT]

if that smell bothers you,,, just burn some popcorn, it'll go away right quick.
this also works to disguise lube making in the kitchen.

I spent over ten years in a hospital Engineering dept... Burned popcorn... OOH THE STORIES I COULD TELL!!!
MANY Hospitals do not allow microwave pop orn AT ALL!!!

CW

 

[Ian]

6" steel flue pipe run through the attic and outside under an eave on the distinct, prevailing leeward side of the house. Not through the steel roof because I collect and drink the rainwater and smoke from fluxing DOES carry oxides of lead, the most harmful form if inhaled or ingested. Fan is in the wall at the end, 30' away, so I don't have to hear the damned thing hum. The switch is right by the pot. Designing and building your own house by yourself from scratch has few advantages, but there are one or two.

Sometimes I ladle with a #2 Rowel with shortened handle from 50# pot of alloy over a gas burner, and that operation is done on select days on the garage apron.

 

[CWLONGSHOT]

Elvis ammo recently did a video on his vent.

its on utube

cw

 

[L Ross]

I spent over ten years in a hospital Engineering dept... Burned popcorn... OOH THE STORIES I COULD TELL!!!
MANY Hospitals do not allow microwave pop orn AT ALL!!!

CW

Our DA was worried her ass was getting to big, so all she ate for lunch was micro wave pop corn. The was a small break/lunch room in the basement of the jail complex. Of course being an important DA ,(who was never satisfied with the reports the Deputies prepared for her), (so her conviction statistics wouldn't prevent her from getting on the State Supreme Court someday), she often forgot her damned popcorn in the micro wave and burnt the chit out of it. Gagging the rest of us poor schmucks trying to eat our lunches during the court noon recess.

I thought her derriere was just fine. If she was worried, all she had to do was look at her ADA. That person had her own gravitational field.

 

[CWLONGSHOT]

In the hospital, burnt popcorn meant a fire department visit and a stern reprimand from the Chief about false alarms. Too many and we where charged fees! Not to mention moat where overnight so my oncall guys where called in as well 4 hr per call adds up at the rate they got!


All from stupidity... repopping what they didnt get to when they first popped does that ten times outta nine!!

CW

 

[burbank.jung]

Can you cut a hole in your shop door for a vent then modify a cardboard box with duct tape and a simple fan to blow the fumes out? Is there an existing vent in the ceiling of your shop so you can lead a vent to it.

 

[glassparman]

Actually I have a window near the bench so I think I'll use John's idea of a box. I can put a regular hood on top and then run the duct to a piece of plexi in the window. I'll make the whole thing portable so I can free up workbench space.

 

[glassparman]

Might as well show off the rest of the shop!