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Went by Lowes at lunch and picked up everything that was on the shopping list (derived from Smokin Gator's document he sent). To ensure airflow won't be a problem though ... I went with 3/4" pipe nipples and accessories. My thought was I would rather have 2 or 3 3/4" pipes capped and available instead of all (3) 1/2" wide open.
Given that ... does anyone have a rough idea of the size hole that needs to be drilled for a 3/4" pipe nipple? |
I originally bought 3/4 inch nipples but couldn't find a step bit that would go that large. Somewhere back in this thread other's have suggested other tools that would cut nice clean round holes, but I don't remember what they were.... sorry!
You will be able to get close to the outside diameter of the pipe nipple by just putting in one a tape measure or ruler. If you can't figure out a tool for the job, don't hesitate to go with the 1/2 nipples. I usually have 1 open and the one with the ball valve about half open to keep 220-230. If I want to do some chickens a bit higher I open a third. Rarely have I had to open all 4. I have done it a couple of times just to see what kind of temps I could get and 300-325 was a piece of cake. |
for a 3/4 inch nipple, ......ummmm 3/4 inch drill bit?? :-D You gotta understand whos talking here, I'm "mechanically" disabled"!
I actually had all 4 1/2 inchers, but now I have one 3/4 inch nipple, why? cause the hole I drilled became too big after I filed it down!!:eek: I tell all my buddies its all in the design plan, and its critical to have that one 3/4 inch nipple!:-D |
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And Keale... doesn't it feel good to fess up and get it off your chest that your drum is designed to have uneven airflow... You know I am j/k bro.... |
Thanks for the responses. My dad says he has the needed bits, etc. - so I'll see what he comes up with and if needed - we go back for the 1/2 inch size!
If you're not tired of seeing another UDS being built ... but I'll try to keep everyone updated as we progress! |
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FYI!
While you guy are checking the Electrician's nuts and tightening your nipples, Greenlee makes a step drill bit that I believe will cut to 1 1/2" holes. Both Lowes and HD have them ( @ $50+ ) along with a 7/8" bit ( $35 ) They are kind of hidden near the wiring and conduits. I'd like to see the progress! Brian |
I used a 1" hole saw to make a hole where 3/4" pipe nipples screw into
http://i91.photobucket.com/albums/k2...k/IMG_1907.jpg Here is a 3/4" X 1/2" bushing threaded in hole. I welded mine but as I suggested eariler you could lock in with conduit nuts. http://i91.photobucket.com/albums/k2...k/IMG_1908.jpg Here is 3/4" nipple welded. http://i91.photobucket.com/albums/k2...k/IMG_1909.jpg And valve installed http://i91.photobucket.com/albums/k2...neck/valve.jpg |
Nice job there, I stand in awe of you guys that have that mechanical ability. Ed.
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