Couldnt have come at a better time. Just aquired app 400 lbs of mixed obsidian from Frank Newman in southern Oregon. Mostly leftovers from sawing slabs. This is gonna help a lot.
platforms are one variable in results, and work with everything else to get done what you want. indirect is much higher PSI load on the edge - "focused" force, so a weak-ish platform is way more likely to fail when punched with a small contact point. sooo...you can compensate by isolating more, cross-grinding more, hitting more downward on support, etc. etc. and of course there is no accuracy issue with indirect platforms, so if you have trouble hitting your spot, big platforms and big isolation would be the solution with direct, but small platforms are fine with indirect. and then when lazy like me and working off continuous platforms for the most part, you just try to get so good that you can skip everything tedious and go for the gusto. but results are optimized when techniques are optimized. it all depends on what matters to you too. if you want specific flaking signatures, then you need to know more than i've covered.
Rock surgeon, amazing as always
thanks for watching and commenting :)
Talented craftsman!
thanks for watching and commenting :)
Gorgeous end product there...
Nice point Freeze!
thanks for watching! :)
Couldnt have come at a better time. Just aquired app 400 lbs of mixed obsidian from Frank Newman in southern Oregon. Mostly leftovers from sawing slabs. This is gonna help a lot.
be careful and have fun. thanks for watching.
Glad to know I’m not the only one that talks to my rock.
yeah, i talk to too many things that don't answer.
Jerry what is the difference between direct and indirect percussion platforms?
Kevin
platforms are one variable in results, and work with everything else to get done what you want. indirect is much higher PSI load on the edge - "focused" force, so a weak-ish platform is way more likely to fail when punched with a small contact point. sooo...you can compensate by isolating more, cross-grinding more, hitting more downward on support, etc. etc. and of course there is no accuracy issue with indirect platforms, so if you have trouble hitting your spot, big platforms and big isolation would be the solution with direct, but small platforms are fine with indirect. and then when lazy like me and working off continuous platforms for the most part, you just try to get so good that you can skip everything tedious and go for the gusto. but results are optimized when techniques are optimized. it all depends on what matters to you too. if you want specific flaking signatures, then you need to know more than i've covered.