Elijah Perry

On 4/23/2014 at 1:27 AM, BlackKnight0739 said:

I'm building a venturi burner using this guy's design here, and I've been able to do everything else in the design except drill in the jet hole that blows the propane into the venturi itself. His design calls for a #57 drill bit, which I can't seem to find any in stock at Home Depot, Harbor Freight, Sears, or even Lowe's (all of the tool shops within easy driving distance of me). When I looked up the thickness of a #57 drill bit (to see if maybe I could just use something close in size) I found that a #57 drill bit is 0.043" and the smallest bit that I have is 1/16, or 0.0625"

Do you think .0195" is a big enough difference to affect the venturi's operation? I can maybe see it having a problem at extremely low psi, like 1 or less, but otherwise I can't see a huge problem. Am I right or wrong in that assessment?

By the way, if this thread is somehow in the wrong area, please let me know; I'm pretty new here

Sorry for the necropost, but I had the same issue and found a set of dremel bits with a 3/64" (0.0485") at home depot, very close to a #57, hope it helps.

Hey, I'm new to this thread but would like to ask a question about a ron reil style burner that I am making. In many of the designs that I have seen they use a 1/8" brass nipple with a hole to blow gas down the burner tube. Is there anything wrong with using copper tubing instead?