I looking for some help with "milling" a 3/4 thick , 3inchx2inch aluminum block. The idea is to mill bit of aluminum out to make a cup, like the one in this video.. 

 

Any ideas / references in Bergen County ?

Why not build it like he did in the video?  Looks fairly straight forward with a drill press and the right bits -- aluminum is easy to mill/drill

 

I would use the proper size forstner bit for the big hole --  and some lube while cutting -- wd40 if a you have nothing else -- candle wax works good too

 

I would also drill as many of the holes that I could before cutting the 2"X3" block --  the bigger piece of aluminum will allow you to clamp it better in the drill press

 

 

My question is why? -- What is oxalic acid used for/ made from -- I did search but couldn't find the "right" answer

I use oxalic acid to remove hard water and iron stains, especially when you have those rust stains on concrete.

So this aluminum vaporizer is placed inside a beehive and used to treat the hive for mites?

 

I guess this is a better application than the link provided by Nickjc where the acid is just sprayed as a liquid.

I got into beekeeping in the backyard and yes, oxalic acid is used in vapor form to treat for mites. OA can also be used in sugar liquid form but has own limitation (temperature, bees consuming it etc). 

And, OA can be used to remove stains. In fact, its primary component of wood bleach. 

 

 

I dont have a drill press :-(, thats why looking for someone to help with cutting and milling / drilling that "cup" area out. 

Where are you located ? You are welcome to use my cheap HF drill press if you are near Lakewood.

I in flemington and have 2 drill presses that your welcome to use. You could even borrow one if you would like. It's a bench top hight

Thanks both for the offer. I am by Montvale (last exit on GSP north). 

 

SC - how do you like your HF drill press ? 

I've used it mainly to drill thin holes in thick books for bookbinding. I've cracked lots of bits but never had trouble with the drill. I haven't used it in a while though.