Hi Jer, I had given up on designing new dig tools after we pushed the limits of technology as far as it could go a couple of years ago.
But to kill a couple of rainy days and relive the "good old days " I put together a couple of different screening tools. Might be of some interest to
Two concept prototypes worked good.
This is the "Barksdale"..good for sandy soil,
The "Juno", features long thin tines for dealing with massive amounts of fire rock
The final models. note tines on the Juno is beefed up
Very good job Hal, Two good functional designs. Looks strong but light. Im assuming the smaller short spines between the longer ones in the rake are for grabbing roots and such. The spine on the end for breaking up clods maybe?
Ach, highly technical manufacturing details. ..just like the good old days.
That spur indeed is for a try at a clod cracker... The small teeth ( cut on a diagonal ) was done with just a 6 inch chop saw blade, close tolerance.
I would have prefered they not be there, just for appearance. With great effort I managed to cut & grind out 2 of them...such a lot of tedious work not worth it for the others.
That knife has served the flint world well for 12 years. No plans for retirement but it could find a lifetime home in a display case with the Paleo
I have been musing on a digital watch that in addition to time & date would have an inch scale on the side..for use of documenting static flint ( not for insitu's )