[time-nuts] Machining some aluminum help!
zl3ag at radioengineering.com
Thu May 18 19:12:10 EDT 2017
Or go for thicker wall aluminium tube, oversized endplates and long bolts or threaded rods running the entire length down the outside of the tube so you're clamping both ends in one operation. No tapping required. Simples!
On 19/05/2017, at 6:16 AM, Tim Shoppa wrote:
> I bet you went to 0.25" wall square tubing only because you want to tap the
> walls for 4-40. Alternative designs can let you use much thinner material
> and a very different flange on the ends, but the costs will likely move
> towards welding/brazing rather than machining.
> Tim N3QE
> On Thu, May 18, 2017 at 12:54 PM, <cdelect at juno.com> wrote:
>> I have a square aluminum tube 5" X 5" with a .25" wall it's 8 1/2" long.
>> I need 20 holes in each end tapped for 4/40 and 1/2" deep.
>> This is for a Rubidium project.
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