highdesertranger said:
but what I have a million questions about is your drill. I have been serious looking at these. some questions, what type of bit do you have on it? can you change the type of bit? the reason I ask is I would like one that I can run a small auger bit, a drill bit, or a core bit this would need a wet adaptor. is your chuck interchangeable? anyhow great pics post some more. my all your pans be golden. highdesertranger
My drill? lol Never thought about it that way, but it is appropriate!
Well, it's an invention of mine, as we dig in some concrete like stuff. Jump on your shovel...nothing happens.
Take a swing with a pick...hit a rock and bounce off or send shards of rock flying.... not fun either way!
So a few years back, I decided to build something, a "ground breaking tool" pun intended!
I knew that a single point pick could be maneuvered round and round creating a small cone like depression.
I figured if I could motorize that action, it might happen faster with far less effort.
But it would be better if I didn't have a straight solid shaft, I needed some slop.
i have a small hobby foundry so I used a leftover cast aluminum sprue for a starting piece and machined up an adaptor for an ice/earth auger.
So I got an earth auger, heavier gearbox than ice auger, and is also meant to be operated in the heat of the summer as opposed to the cooling
it would get while on a frozen lake in the winter .
I used standard 1 inch HSS steel tube, and made a "drill" point from some 3/4 cold rolled that I had lying about.
Sorry no pics of the "drill point", it is simply tapered to a dull point and is cross drilled and inserted into the lower part of the tube.
One of the key features is that it is a "sloppy " fit, and wobbles around...
It is this wobbling action coupled with the rotary motion that makes it work.
As it turns at around 100-160 rpm, it wobbles around and seeks to move to lower or softer ground, and finds it's way through the rocks.
Once I hit 6-8 inch depth, I give the auger unit a wide circling motion a few times and the ground just cracks, move over 6 inches , repeat, and again,
about 30 50 seconds per pass, partner is right there, digging easily wherever I have broken the ground!
Since I made it for myself from scratch, any type of adaptor could technically be made, to suit the application.
If there is anything else you want to know, feel free to ask!