We covered like topic before - buck/boost.Just run the 12 volt drill on 18 volts. A friend built an
Just need to "buck" - reduce voltage from 18V to 12V
In your opinions - small fitment going into battery "shoe" of 12V tool >adapting to fitting an 18V battery pack and having the "buck"
volts-to-amps trade - is viable?
They exist and are offered - eg. on Alibaba.
Want an SDS drill small enough to carry in a shoulder-bag through a mine
- but use existing 18V batteries - not expensive option of starting
stock of 12V batteries.
For drilling holes - 10mm or 14mm for "feathers" - rock-splitting
wedges. Into hard granite - so needs a "serious" hammer-action drill.
Maybe have to get 18V drill.
Helpful advice this morning - for same voltage - 18V to 18V - has >straight-through couplings going eg. DeWalt to Makita.
So can choose smallest neatest 18V tool.
Thanks in advance,
Rich Smith
"Richard Smith" wrote in message news:m17cio63li.fsf@void.com...
Want an SDS drill small enough to carry in a shoulder-bag through a mine
- but use existing 18V batteries - not expensive option of starting
stock of 12V batteries.
For drilling holes - 10mm or 14mm for "feathers" - rock-splitting
wedges. Into hard granite - so needs a "serious" hammer-action drill.
------------------------
This is what I have and it's barely fast enough in granite for homeowner
use: https://usatoolsinc.com/makita-1-1-2-in-rotary-hammer-spline-ac-dc-hr3851-discontinued-replaced-by-hr4041c/
When it broke the contractor replaced it with a larger Hitachi. He had
bought it to run pipes and conduit through concrete, and complained
about how slow it was. I'm well equipped partly because friends give me
stuff they can't fix.
We covered like topic before - buck/boost. Just need to "buck" -
reduce voltage from 18V to 12V In your opinions - small fitment
going into battery "shoe" of 12V tool adapting to fitting an 18V
battery pack and having the "buck" volts-to-amps trade - is viable?
...
Want an SDS drill small enough to carry in a shoulder-bag through a
mine - but use existing 18V batteries - not expensive option of
starting stock of 12V batteries.
For drilling holes - 10mm or 14mm for "feathers" - rock-splitting
wedges. Into hard granite - so needs a "serious" hammer-action drill.
"Snag" wrote in message news:uroeod$4m3m$1@dont-email.me...Like the "parts saw" I spent a dollar on a few years back. "Damned
I too have been the recipient of tools the previous owner couldn't fix
. Mostly chainsaws and other small engine powered equipment . These >hillbillies aren't always big on routine maintenance .
Snag
-----------------------
My first chainsaw which I used until parts became unavailable was a >combination of two basket cases (same peach basket), one that wore out and >another a tree had fallen on and cracked the case. The fix wasn't apparent
to the owner.
"Gerry" wrote in message news:icovtid681isu60r9lh6dbesghb6tc7j6j@4ax.com...Around thirty years ago L blew a whole three bucks on "some kind of
On Wed, 28 Feb 2024 19:20:07 -0500, "Jim Wilkins"
<muratlanne@gmail.com> wrote:
"Snag" wrote in message news:uroeod$4m3m$1@dont-email.me...Like the "parts saw" I spent a dollar on a few years back. "Damned
I too have been the recipient of tools the previous owner couldn't fix
. Mostly chainsaws and other small engine powered equipment . These >>hillbillies aren't always big on routine maintenance .
Snag
-----------------------
My first chainsaw which I used until parts became unavailable was a >>combination of two basket cases (same peach basket), one that wore out and >>another a tree had fallen on and cracked the case. The fix wasn't apparent >>to the owner.
thing won't run!" the fuel line was pinched between sections of the
case.
-------------------------------
I've done that with the kill switch wire, which has soft high temperature >silicone insulation.
I bought a cheap 'broken' floor jack that needed a 70 cent snap ring to keep >a lift arm from popping off. I bought a $300 VW Beetle convertible that was >making an alarming noise in the engine area until I tightened the loose >bumper bolts.
If you are drilling under a dozen
holes, get a sledge and a star drill
and manually make the holes.
------------------------
Have you actually tried drilling granite that way?
Richard Smith <null@void.com> wrote:
We covered like topic before - buck/boost. Just need to "buck" -
reduce voltage from 18V to 12V In your opinions - small fitment
going into battery "shoe" of 12V tool adapting to fitting an 18V
battery pack and having the "buck" volts-to-amps trade - is viable?
...
Possible, as Jim Wilkins said, and maybe viable, but likely to be a jury-rigged lashup. Do you already have a 12V SDS drill on hand, that
you want to adapt? If so, get a motorcycle-size 12V battery (like Jim Wilkins mentioned) or just use 18V straight (like Clare Snyder
suggested). If buying new and have a choice, go with a modern 20 V or
higher voltage SDS drill, or if 18V is de rigueur, an 18V unit.
Want an SDS drill small enough to carry in a shoulder-bag through a
mine - but use existing 18V batteries - not expensive option of
starting stock of 12V batteries.
I expect that the lighter the tool, the longer it will take, if it
works at all, and in any case, extra batteries will make up much of
the weight you need to carry. BTW, how long would an extension cord
need to be? A cord might be better use of money. Am I correct in
surmising a gas-powered generator is out of the question due to its
exhaust, or is the mine's air circulation just peachy?
For drilling holes - 10mm or 14mm for "feathers" - rock-splitting
wedges. Into hard granite - so needs a "serious" hammer-action drill.
If you are drilling under a dozen holes, get a sledge and a star drill
and manually make the holes.
Basically it's
* turn on the compressor and use a big rock-drill
* battery-powered "cordless" drill
On Thu, 29 Feb 2024 07:16:29 +0000
Richard Smith <null@void.com> wrote:
<snip>
Basically it's
* turn on the compressor and use a big rock-drill
* battery-powered "cordless" drill
If you have air available... there are smaller Rock Drills. For
instance:
https://power-technique.cp.com/en-us/products/handheld-pneumatic-us/sinkers-surface-rock-drills/cp-0014rr
...
Solution come into view - will run an airline up the raise and use out >"Holman 303" sinker (jackhammer).
Very similar to the CP jackhammer you linked to.
So that is simply breaking the rocks with a chisel bit in a jackhammer.
Also, might as well take extension-lead, the mains-powered SDS drill and >different sized drill-bits up to larger size and see what it will do
into the mine's granite from the at-surface pile.
Use what I have.
Develop an idea of what power is needed to drill what hole size - for >"feathers" to split rocks.
In case do have to get a cordless / battery powered drill.
We covered like topic before - buck/boost.
Just need to "buck" - reduce voltage from 18V to 12V
Want an SDS drill small enough to carry in a shoulder-bag through a mine
- but use existing 18V batteries - not expensive option of starting
stock of 12V batteries.
For drilling holes - 10mm or 14mm for "feathers" - rock-splitting
wedges. Into hard granite - so needs a "serious" hammer-action drill.
Current type:
Dewalt "XR" 18V.
On 04/03/2024 09:07, Richard Smith wrote:
Current type:
Dewalt "XR" 18V.
DCH133 @ about £100 ?
There is granite and granite, but
https://www.youtube.com/watch?v=dNat1FCDfiA
Peter Fairbrother
On 04/03/2024 09:07, Richard Smith wrote:
Current type:
Dewalt "XR" 18V.
DCH133 @ about £100 ?
There is granite and granite, but
https://www.youtube.com/watch?v=dNat1FCDfiA
Peter Fairbrother
"Richard Smith" wrote in message news:m1msrbpq7j.fsf@void.com...
Peter Fairbrother <peter@tsto.co.uk> writes:
On 04/03/2024 09:07, Richard Smith wrote:
Went for the DeWalt DCH263N
Nice drill, beyond my price range to buy new.
Are they paying you for this?
"Richard Smith" wrote in message news:m134t3flmh.fsf@void.com...
You are probably seeing the price in a pretty box with two
large-capacity batteries - 4Ah or 5Ah.
---------------------------------
I've used a large powerful drill to cut 4" holes for conduit in steel
and would rather not have to need to again. It was inside a
closet-sized electrical enclosure and when the hole saw jammed the long-handled geared drill would continue for another quarter turn,
whether or not some part of me was in the way.
The Makita is something of a beast too, but I use it outside. When
with a crew I feel like the squad member who has the machine gun.
"Richard Smith" wrote in message news:m1il1x6u84.fsf@void.com...
"Jim Wilkins" <muratlanne@gmail.com> writes:
"Richard Smith" wrote in message news:m134t3flmh.fsf@void.com...
You are probably seeing the price in a pretty box with two
large-capacity batteries - 4Ah or 5Ah.
---------------------------------
I've used a large powerful drill to cut 4" holes for conduit in steel
and would rather not have to need to again. It was inside a
closet-sized electrical enclosure and when the hole saw jammed the
long-handled geared drill would continue for another quarter turn,
whether or not some part of me was in the way.
The Makita is something of a beast too, but I use it outside. When
with a crew I feel like the squad member who has the machine gun.
Got the DeWalt DCH263 - arrived.
Seems for-real - batteries I already have fit it, etc.
Bought a couple of SDS masonry drill-bits - 14mm and 10mm.
Already have 14mm "feathers" - splitting wedges.
Hope to take them to the mine next week and see if can split rocks -
this hard granite.
--------------------------------
The advice from Trow and Holden was about splitting granite neatly in
a quarry. The miners may have other ways to split it roughly to
dispose of it.
The only way I've seen was with the hydraulic jackhammer on an
excavator, and it could take perhaps an hour to crack a large granite
boulder left from blasting and meant for fill. They drilled to blast
but not to break up the rubble.
Hi everyone.Excellent, Rick
Posted at top of thread - wishing to thank everyone who contributed to
this "journey" whose extent (effort, duration) I never anticipated.
Here is the outcome - what a surprise. In a very pleasant way!
There is hope this is "for real".
I handed the equipment to another person who came by to see how I as
getting on, and trying it he concurs - it works and it is to be hoped
this is "for real".
http://www.weldsmith.co.uk/tech/minerals/240314_rocksplit/240314_rocksplit_drill_feathers.html
"Rock-split granite with "cordless" SDS drill and "feathers""
Well would you ever have believed it...?!
Best wishes,
Rich Smith
"Rock-split granite with "cordless" SDS drill and "feathers""
"Leon Fisk" wrote in message news:ut1pkd$293a4$1@dont-email.me...
On Fri, 15 Mar 2024 13:31:43 +0000
Richard Smith <null@void.com> wrote:
<snip>
http://www.weldsmith.co.uk/tech/minerals/240314_rocksplit/240314_rocksplit_drill_feathers.html
"Rock-split granite with "cordless" SDS drill and "feathers""
Rich,
NICE job! You have a working solution to this problem👍
Forgive me... but my mind immediately went to why not make (or buy)
some larger feathers to fit the Pneumatic drill hole and maybe some
smaller feathers so your battery drill could use a smaller drill hole🤔
On Fri, 15 Mar 2024 13:31:43 +0000
Richard Smith <null@void.com> wrote:
<snip>
http://www.weldsmith.co.uk/tech/minerals/240314_rocksplit/240314_rocksplit_drill_feathers.html
"Rock-split granite with "cordless" SDS drill and "feathers""
Rich,
NICE job! You have a working solution to this problem👍
Forgive me... but my mind immediately went to why not make (or buy)
some larger feathers to fit the Pneumatic drill hole and maybe some
smaller feathers so your battery drill could use a smaller drill hole🤔
There are some large feathers for the 32mm to 34mm hole.
Thing is, from my observation, they work no better than the small
feathers on this granite.
On Fri, 15 Mar 2024 18:35:24 +0000
Richard Smith <null@void.com> wrote:
<snip>
There are some large feathers for the 32mm to 34mm hole.
Thing is, from my observation, they work no better than the small
feathers on this granite.
My thinking was if there were already big holes drilled and the piece
hadn't been split you wouldn't have to make more holes.
Regarding whether to make a webpage with stuff like this... I gain info
from lots of web pages that aren't exactly about the problem I'm trying
to solve. I find them useful. You do a lot of the same. You're able to
apply a concept or idea elsewhere in a completely unrelated field. As
I've aged I now realize a lot of people can't do this😑
Leon Fisk <lfiskgr@gmail.invalid> writes:
On Fri, 15 Mar 2024 13:31:43 +0000Not at all "forgive" - comment welcomed.
Richard Smith <null@void.com> wrote:
<snip>
http://www.weldsmith.co.uk/tech/minerals/240314_rocksplit/240314_rocksplit_drill_feathers.htmlRich,
"Rock-split granite with "cordless" SDS drill and "feathers""
NICE job! You have a working solution to this problem👍
Forgive me... but my mind immediately went to why not make (or buy)
some larger feathers to fit the Pneumatic drill hole and maybe some
smaller feathers so your battery drill could use a smaller drill hole🤔
There are some large feathers for the 32mm to 34mm hole.
Thing is, from my observation, they work no better than the small
feathers on this granite.
Line of small holes with matching feathers is "it".
Problem is the compressor isn't running all the time.
Would be in a working mine, but this is a "hobby" mine.
Splitting rocks and clearing debris is like an infil job which comes
when it comes.
Takes several people and some time to get the compressor running.
Not going to happen when you find yourself with some time mid-way
through a club morning at the mine.
If I could make some wedges of the same taper but thinner, maybe could
come down to a 12mm / half-inch hole
Area-ratio, so proportional to diameter-squared
(/f (expt 14 2) (expt 12 2)) ;; 1.3611111111111112
(/f (expt 12 2) (expt 14 2)) ;; 0.7346938775510204
73% of the area.
Would be well worth having.
Yes absolutely {thumbs-up}
Best wishes, Rich Smith
"David Billington" wrote in message news:ut2am8$2ev2g$1@dont-email.me...
Richard,
Have you tried or considered the old method of dry wood hammered into
the holes and then wetting it, not something I've tried but an article
here https://www.researchgate.net/figure/Rock-split-by-using-the-swelling-pressure-of-wood-Egypt-2001_fig5_267834899
.
---------------------------------
I don't put much faith in academic scholars' guesses about Egyptian
tech. The pyramid stones weigh around 5000 Lbs, a weight a small crew
with j-bars can slide onto a flat bed truck, BTDT. I've lifted 4000 Lb
logs to block them up off the damp ground. https://www.sunbeltrentals.com/equipment-rental/forklifts/johnson-bar/1501085/
There are similar splitting cuts in stones at Mystery Hill in Salem
NH, USA. The guides' explanation is that they were cut with a thin
chisel for iron splitting wedges before the star drill was invented in
the early 1800's. Water is easily squeezed out of wet wood. https://mysteryhillnh.info/
A similar but undercut slot is used to lift stones: https://en.wikipedia.org/wiki/Lewis_(lifting_appliance)
The 3 legged one was a status symbol for Church officials.
On 15/03/2024 18:35, Richard Smith wrote:
http://www.weldsmith.co.uk/tech/minerals/240314_rocksplit/240314_rocksplit_drill_feathers.html
"Rock-split granite with "cordless" SDS drill and "feathers""
Have you tried or considered the old method of dry wood hammered into
the holes and then wetting it, not something I've tried but an article
here https://www.researchgate.net/figure/Rock-split-by-using-the-swelling-pressure-of-wood-Egypt-2001_fig5_267834899 .
On 15/03/2024 18:35, Richard Smith wrote:
Leon Fisk <lfiskgr@gmail.invalid> writes:
On Fri, 15 Mar 2024 13:31:43 +0000
Richard Smith <null@void.com> wrote:
<snip>
http://www.weldsmith.co.uk/tech/minerals/240314_rocksplit/240314_rocksplit_drill_feathers.htmlRich,
"Rock-split granite with "cordless" SDS drill and "feathers""
NICE job! You have a working solution to this problem👍
Forgive me... but my mind immediately went to why not make (or buy)
some larger feathers to fit the Pneumatic drill hole and maybe some
smaller feathers so your battery drill could use a smaller drill hole🤔 >> Not at all "forgive" - comment welcomed.
There are some large feathers for the 32mm to 34mm hole.
Thing is, from my observation, they work no better than the small
feathers on this granite.
Line of small holes with matching feathers is "it".
Problem is the compressor isn't running all the time.
Would be in a working mine, but this is a "hobby" mine.
Splitting rocks and clearing debris is like an infil job which comes
when it comes.
Takes several people and some time to get the compressor running.
Not going to happen when you find yourself with some time mid-way
through a club morning at the mine.
If I could make some wedges of the same taper but thinner, maybe could
come down to a 12mm / half-inch hole
Area-ratio, so proportional to diameter-squared
(/f (expt 14 2) (expt 12 2)) ;; 1.3611111111111112
(/f (expt 12 2) (expt 14 2)) ;; 0.7346938775510204
73% of the area.
Would be well worth having.
Yes absolutely {thumbs-up}
Best wishes, Rich Smith
Richard,
Have you tried or considered the old method of dry wood hammered into
the holes and then wetting it, not something I've tried but an article
here https://www.researchgate.net/figure/Rock-split-by-using-the-swelling-pressure-of-wood-Egypt-2001_fig5_267834899
.
On Fri, 15 Mar 2024 18:35:24 +0000
Richard Smith <null@void.com> wrote:
<snip>
There are some large feathers for the 32mm to 34mm hole.
Thing is, from my observation, they work no better than the small
feathers on this granite.
My thinking was if there were already big holes drilled and the piece
hadn't been split you wouldn't have to make more holes.
Regarding whether to make a webpage with stuff like this... I gain info
from lots of web pages that aren't exactly about the problem I'm trying
to solve. I find them useful. You do a lot of the same. You're able to
apply a concept or idea elsewhere in a completely unrelated field. As
I've aged I now realize a lot of people can't do this😑
"Richard Smith" wrote in message news:m1wmq28ws5.fsf@void.com...
Not tried it - should, to respect forebearers and live their experience. Modern there is "splitting compound". Mix the powder with water - is expansile when "sets" - can be used to burst rocks. Never tried that.
But yes if find opportunity would be good to try the ancient method and experience it. Would be good feeling of treading prior footsteps should
I get it to work.
----------------------------
I have a 10,000# pressure load cell and lots of dry wedge-shaped oak
chips created by the log splitter, so I'll try it after today's
chores. My experience from splitting heavy wet firewood small enough
to lift to the top of the stack is that an axe hit inadequate to split
the wood forces water from it on both sides.
"Jim Wilkins" wrote in message news:ut5195$334ch$1@dont-email.me...
"Jim Wilkins" wrote in message news:ut4jh5$309ec$1@dont-email.me...
I doubled it to 200 Lbs, one tick mark, on a 3/8" thick square of red
oak
in a plastic bag and added water about 20 minutes ago. So far the gauge needle hasn't moved.
-----------------------
4 hours later, if anything the pressure has decreased by the pointer
width.
Into the freezer with it, until I need the space for the kettle of
beef stew
I'm cooking.
----------------------------------------
2 more hours, 0F, the pressure is zero and the C clamp isn't tight.
Out to see if the pressure recovers as the gauge warms.
It does, a little.
Either wet wedging doesn't work or I missed something.
"David Billington" wrote in message news:ut5b5o$352d4$1@dont-email.me...
On 16/03/2024 23:36, Jim Wilkins wrote:
"Jim Wilkins" wrote in message news:ut5195$334ch$1@dont-email.me...
"Jim Wilkins" wrote in message news:ut4jh5$309ec$1@dont-email.me...
I doubled it to 200 Lbs, one tick mark, on a 3/8" thick square of
red oak
in a plastic bag and added water about 20 minutes ago. So far the gauge
needle hasn't moved.
-----------------------
4 hours later, if anything the pressure has decreased by the pointer
width.
Into the freezer with it, until I need the space for the kettle of
beef stew
I'm cooking.
----------------------------------------
2 more hours, 0F, the pressure is zero and the C clamp isn't tight.
Out to see if the pressure recovers as the gauge warms.
It does, a little.
Either wet wedging doesn't work or I missed something.
Why I asked about the type of oak is that I was told red oak has an open
cell structure and can allow water to wick into the wood easily which
isn't the case with other types of oak, maybe in this case that is
preventing any cellular swelling or allowing any pressure to squeeze the water out. Can you repeat the test with white oak. I have some English
oak here but my force gauge is out of action until I replace the
loadcell lead.
---------------------------------
My white oak is still in logs so sample prep could take a while and
this is a busy time of year, I need to split and stack next year's
firewood to dry, upgrade a few things on the sawmill and get the logs
out of my front yard. I paused outdoor projects in mid December and
began again in February. The question is academic if steel wedges and feathers are available.
The gauge has warmed up and the pressure recovered, so maybe the gauge
oil shrank?
More on splitting stone: https://www.dartmoorcam.co.uk/CAM/SplittingGranite.htm
Supposedly tree roots can split boulders. I pulled a live root out of a
crack and squeezed it with pliers, and found that it was soft and easily >compressed.
The condition of our paved and dirt roads during spring thaw/freeze cycles >shows the powerful effects of water without plants being involved. I think >plants merely take advantage of existing opportunity.
Much talk, minimal data:
https://en.wikipedia.org/wiki/Turgor_pressure
On Sun, 17 Mar 2024 12:45:32 -0400
"Jim Wilkins" <muratlanne@gmail.com> wrote:
<snip>
The condition of our paved and dirt roads during spring thaw/freeze cycles >>shows the powerful effects of water without plants being involved. I think >>plants merely take advantage of existing opportunity.
I usually observe this with relatively new pavement laid down over
an area that had weeds growing but graded off. The "weed" will push the >pavement up, volcano like and continue growing. Some examples of
questionable authenticity:
https://www.dreamstime.com/stock-photo-weed-growing-crack-pavement-green-plant-asphalt-image62240672
https://www.alamy.com/plant-growing-through-pavement-image60063689.html
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