I Googled unsuccessfully.

I want to snap a "SDS plus" 'soil tamper' bit into my Bosch
Chipping Hammer to compact soil as I fill old post holes.

Has anyone done this?

Shall I just weld a square 1/4" HRS foot on to the end of a short pipe
and weld a "SDS plus" shank to the top?

What do you think about this plan?

--Winston


--

Gary was a liar, a thief, a scoundrel and a psychologist.
He was the most redundant man I ever met.

Winston wrote in
:

I Googled unsuccessfully.

I want to snap a "SDS plus" 'soil tamper' bit into my Bosch
Chipping Hammer to compact soil as I fill old post holes.

Has anyone done this?

Shall I just weld a square 1/4" HRS foot on to the end of a short pipe
and weld a "SDS plus" shank to the top?

What do you think about this plan?

--Winston



Don't use too short a chunk of pipe.

One end should be on the ground while the finished combination has the
hammer at your waist level.

Hopefully this will let you work standing up straight.

On 4/21/2010 10:35 PM, RAM³ wrote:
wrote in
:

I Googled unsuccessfully.

I want to snap a "SDS plus" 'soil tamper' bit into my Bosch
Chipping Hammer to compact soil as I fill old post holes.

(...)

Don't use too short a chunk of pipe.

One end should be on the ground while the finished combination has the
hammer at your waist level.

Hopefully this will let you work standing up straight.

Yup, that is the plan.

I want to balance 'ease of use' with wear on my chipping hammer.

Mass is going to be an issue.
I wonder if steel 'rigid metal conduit' would make a better 'pipe' than
plain black pipe, considering weight and the ability to use a larger
diameter, boosting crumpling resistance.

I think I just convinced myself there.

--Winston


--

Gary was a liar, a thief, a scoundrel and a psychologist.
He was the most redundant man I ever met.

Winston wrote:
On 4/21/2010 10:35 PM, RAM³ wrote:
wrote in
:

I Googled unsuccessfully.

I want to snap a "SDS plus" 'soil tamper' bit into my Bosch
Chipping Hammer to compact soil as I fill old post holes.

(...)

Don't use too short a chunk of pipe.

One end should be on the ground while the finished combination has the
hammer at your waist level.

Hopefully this will let you work standing up straight.

Yup, that is the plan.

I want to balance 'ease of use' with wear on my chipping hammer.

Mass is going to be an issue.
I wonder if steel 'rigid metal conduit' would make a better 'pipe' than
plain black pipe, considering weight and the ability to use a larger
diameter, boosting crumpling resistance.

I think I just convinced myself there.

--Winston


You're on the right track---The added mass will cut down the impact
stroke to very little---The length will absorb most of the force from a
chipping hammer & turn it into heat.

The workable solution would be a 2 or 3" plate on a short chisel stub
and then get down in the hole with it..---welds may not last long
either.Jerry

On 4/22/2010 6:48 PM, Jerry Wass wrote:
Winston wrote:

(...)

Mass is going to be an issue.
I wonder if steel 'rigid metal conduit' would make a better 'pipe' than
plain black pipe, considering weight and the ability to use a larger
diameter, boosting crumpling resistance.

I think I just convinced myself there.

--Winston


You're on the right track---The added mass will cut down the impact
stroke to very little---The length will absorb most of the force from a
chipping hammer & turn it into heat.

The workable solution would be a 2 or 3" plate on a short chisel stub
and then get down in the hole with it..---welds may not last long
either.Jerry

I'd like to test both those options. I guess that if the sheer
amount of steel in the RMC was about the same as in one of my
chisel bits, I shouldn't have too much power lost in the
conduit.
I figure that either of these methods would be more effective
and easier on my back than my current method.

The good news is that the tamper would be very portable and
easy to reinforce or repair if necessary.

Thanks, Jerry.

--Winston





--

Gary was a liar, a thief, a scoundrel and a psychologist.
He was the most redundant man I ever met.

On Apr 22, 3:16*pm, Winston wrote:
I Googled unsuccessfully.

I want to snap a "SDS plus" 'soil tamper' bit into my Bosch
Chipping Hammer to compact soil as I fill old post holes.

Has anyone done this?

Shall I just weld a square 1/4" HRS foot on to the end of a short pipe
and weld a "SDS plus" shank to the top?

What do you think about this plan?

--Winston

--

Gary was a liar, a thief, a scoundrel and a psychologist.
He was the most redundant man I ever met.

Let us know how you go with this one - I tried it with a spader (hah!
- an inch wide!) bit on my SDS hammer thingy - cut it, turned it to a
round, then centre bored a steel shaft to a interference fit on the
new shanks, and then welded it. Theory was to dig deep post holes.
Total failure, did bugger all - maybe the extra shaft was too
flexible, or too long - dont know. Welds broke. (Sorry, I meant to say
"inter-crystalline vibration fracture") Its sitting behind the door,
waiting to be resurrected as the MK2 version....

I got an old (VERY old, 50's at least) 2-stroke petrol jack hammer.
Just LOVES concrete, got real grunt. Made in Sweden. Trouble is, the
fumes are so bad you cant dig deep holes with it, you gas yourself.
Its got a 6 inch spader bit, moil point drills, and a breaker bit.
But nowadays, its too bloody heavy, getting beyond me a bit now
except for short bursts......

Andrew VK3BFA.

On 4/22/2010 11:59 PM, Andrew VK3BFA wrote:

(...)

Welds broke. (Sorry, I meant to say
"inter-crystalline vibration fracture") Its sitting behind the door,
waiting to be resurrected as the MK2 version....

Sounds like I was headed towards a serious mechanical
'impedance mismatch'.

This is exactly the kind of info I was looking for and I thank you
and Jerry Wass for showing me the light.

It appears I need to find a way to place the pulse source
*much* closer to the soil. Shorten the bit and extend the handle.


I got an old (VERY old, 50's at least) 2-stroke petrol jack hammer.
Just LOVES concrete, got real grunt. Made in Sweden. Trouble is, the
fumes are so bad you cant dig deep holes with it, you gas yourself.
Its got a 6 inch spader bit, moil point drills, and a breaker bit.
But nowadays, its too bloody heavy, getting beyond me a bit now
except for short bursts......

Yup! I demolished 30 K lbs. of concrete layers using a little
70 lb. electric demo hammer. That thing got heavy after the first
few hours.

Thanks, Andrew.

--Winston


--

Gary was a liar, a thief, a scoundrel and a psychologist.
He was the most redundant man I ever met.

THey have spoons and digging equipment for those that only hammer.
I have a drill/hammer or drill. Rats.

My 1/2" SDS Plus is a beautiful electronic brake and powerful machine.

But like you, I needed a hammer only.

Rats.

Go ahead - Don't make it very big - smaller flat goes in deeper.

In fact - you could use drills - poking them in but a flat would
be better. Use an old drill blank maybe!

Martin

Winston wrote:
I Googled unsuccessfully.

I want to snap a "SDS plus" 'soil tamper' bit into my Bosch
Chipping Hammer to compact soil as I fill old post holes.

Has anyone done this?

Shall I just weld a square 1/4" HRS foot on to the end of a short pipe
and weld a "SDS plus" shank to the top?

What do you think about this plan?

--Winston

On Sat, 24 Apr 2010 21:30:44 -0500, "Martin H. Eastburn"
wrote:

THey have spoons and digging equipment for those that only hammer.
I have a drill/hammer or drill. Rats.

My 1/2" SDS Plus is a beautiful electronic brake and powerful machine.

But like you, I needed a hammer only.

Rats.

Go ahead - Don't make it very big - smaller flat goes in deeper.

In fact - you could use drills - poking them in but a flat would
be better. Use an old drill blank maybe!

Martin


I think Ive got a Black and Decker Impact Drill..doesnt spin, was
originally used to drive those star shaped concrete bits into concrete.
Its a stout! *******.

If you are interested.


Gunner

Winston wrote:
I Googled unsuccessfully.

I want to snap a "SDS plus" 'soil tamper' bit into my Bosch
Chipping Hammer to compact soil as I fill old post holes.

Has anyone done this?

Shall I just weld a square 1/4" HRS foot on to the end of a short pipe
and weld a "SDS plus" shank to the top?

What do you think about this plan?

--Winston




"First Law of Leftist Debate
The more you present a leftist with factual evidence
that is counter to his preconceived world view and the
more difficult it becomes for him to refute it without
losing face the chance of him calling you a racist, bigot,
homophobe approaches infinity.

This is despite the thread you are in having not mentioned
race or sexual preference in any way that is relevant to
the subject." Grey Ghost

"Winston" wrote in message
...
On 4/21/2010 10:35 PM, RAM³ wrote:
wrote in
:

I Googled unsuccessfully.

I want to snap a "SDS plus" 'soil tamper' bit into my Bosch
Chipping Hammer to compact soil as I fill old post holes.

(...)

Don't use too short a chunk of pipe.

One end should be on the ground while the finished combination has the
hammer at your waist level.

Hopefully this will let you work standing up straight.

Yup, that is the plan.

I want to balance 'ease of use' with wear on my chipping hammer.

Mass is going to be an issue.
I wonder if steel 'rigid metal conduit' would make a better 'pipe' than
plain black pipe, considering weight and the ability to use a larger
diameter, boosting crumpling resistance.

I think I just convinced myself there.

--Winston


--

Gary was a liar, a thief, a scoundrel and a psychologist.
He was the most redundant man I ever met.

Winston,

I too want to build a 'small area' compactor for my hammer drill. Would
sure like to learn from your experience. Are you done yet? Have you built
one? Are you happy with it?

Thanks,
Ivan Vegvary

On 4/26/2010 6:01 PM, Ivan Vegvary wrote:

"Winston" wrote in message
...

(...)

I Googled unsuccessfully.

I want to snap a "SDS plus" 'soil tamper' bit into my Bosch
Chipping Hammer to compact soil as I fill old post holes.

(...)

Winston,

I too want to build a 'small area' compactor for my hammer drill. Would
sure like to learn from your experience. Are you done yet?

Still researching, Ivan.

Have you built one? Are you happy with it?

Not yet. My path was corrected by Jerry Wass and Andrew.

I now understand that I need a *short* distance between the
chuck of the chipping hammer and the working surface of the
soil tamper because of all the impact energy that would be
dissipated in the shaft of a long tamper.

Ideally I would like to remain standing while using the tool
so I need to devise some kind of 'extension handle'.

This is a poser because I don't know how to design a
detachable handle for this purpose and my Google-fu
has not revealed a retail solution.

Right now a few 'honeydos' are in the way of further
work so I shall ponder the problem in spare moments.

If you come up with a way to do this, I am very interested
in your discoveries.

Thanks!

--Winston



--

Harley was venal, arrogant, despicable and a psychologist.
He was the second most redundant man I ever talked to.

On 4/24/2010 7:30 PM, Martin H. Eastburn wrote:
THey have spoons and digging equipment for those that only hammer.
I have a drill/hammer or drill. Rats.

My 1/2" SDS Plus is a beautiful electronic brake and powerful machine.

My landscape contractor borrowed my chipping hammer to do some
foundation trimming. He wanted me to give it to him at the end
of the project.


But like you, I needed a hammer only.

Rats.

Go ahead - Don't make it very big - smaller flat goes in deeper.

Additionally, (as I have learned) the distance between chuck and
the soil must be *very short* so that the largest possible amount
of power couples, rather than be dissipated in the tamper
itself.

Now I'm looking for an 'extension handle' to put the
chipping hammer in the hole while I am comfortably standing.

Thanks!

--Winston



--

Harley was venal, arrogant, despicable and a psychologist.
He was the second most redundant man I ever talked to.

On Mon, 26 Apr 2010 18:49:59 -0700, Winston wrote:

On 4/24/2010 7:30 PM, Martin H. Eastburn wrote:
THey have spoons and digging equipment for those that only hammer.
I have a drill/hammer or drill. Rats.

My 1/2" SDS Plus is a beautiful electronic brake and powerful machine.

My landscape contractor borrowed my chipping hammer to do some
foundation trimming. He wanted me to give it to him at the end
of the project.


But like you, I needed a hammer only.

Rats.

Go ahead - Don't make it very big - smaller flat goes in deeper.

Additionally, (as I have learned) the distance between chuck and
the soil must be *very short* so that the largest possible amount
of power couples, rather than be dissipated in the tamper
itself.

Now I'm looking for an 'extension handle' to put the
chipping hammer in the hole while I am comfortably standing.

Thanks!

--Winston


I have a feeling that you would do better with a demolition hammer/road drill
rather than an SDS based tool. If it's got 1 1/8" hex bits it'll manage soil
compaction. SDS just isn't big enough.

I would be surprised if the DIY sheds/Wallyworld don't occasionally carry
them.

The one I got here in the UK is quite happy breaking up 7" concrete, although
I haven't had need to fit a tamper bit on it yet.


Mark Rand
RTFM

On 4/27/2010 11:34 AM, Mark Rand wrote:
On Mon, 26 Apr 2010 18:49:59 -0700, wrote:

On 4/24/2010 7:30 PM, Martin H. Eastburn wrote:
THey have spoons and digging equipment for those that only hammer.
I have a drill/hammer or drill. Rats.

My 1/2" SDS Plus is a beautiful electronic brake and powerful machine.

My landscape contractor borrowed my chipping hammer to do some
foundation trimming. He wanted me to give it to him at the end
of the project.


But like you, I needed a hammer only.

Rats.

Go ahead - Don't make it very big - smaller flat goes in deeper.

Additionally, (as I have learned) the distance between chuck and
the soil must be *very short* so that the largest possible amount
of power couples, rather than be dissipated in the tamper
itself.

Now I'm looking for an 'extension handle' to put the
chipping hammer in the hole while I am comfortably standing.

Thanks!

--Winston


I have a feeling that you would do better with a demolition hammer/road drill
rather than an SDS based tool. If it's got 1 1/8" hex bits it'll manage soil
compaction. SDS just isn't big enough.

I've worked with the 70 lb. demo hammers and I agree they would be stellar
performers in that role. I'm just not willing to work that hard for that
level of performance.

What I am doing now appears to be sufficient. That is, I'm compacting soil
by spearing it with the flat end of a 8' 2x4. Each strike appears to push
about 1/2" of air out of the soil. So I backfill and ram, then backfill some
more than ram some more until the bottom of the hole is 'at grade'.
The soil thus compacted maintains its shape very well when I dig the new
post hole and offers very similar resistance as does the surrounding
undisturbed soil.

I guess that an SDS hammer would do at least as good a job with far less
effort on my part.

I would be surprised if the DIY sheds/Wallyworld don't occasionally carry
them.

I could get one here via rental or my good friends at CPO.
http://www.cpomakita.com/hammers_and.../hm1810x3.html

The one I got here in the UK is quite happy breaking up 7" concrete, although
I haven't had need to fit a tamper bit on it yet.

I've done 8" of concrete with the 70 lb. demo hammer. Luckily it was
in 2, 4" thick layers. Had to remove the brick layer first though.

Then I had to recover for a week.


Thanks for your thoughts



--Winston



--

Harley was venal, arrogant, despicable and a psychologist.
He was the second most redundant man I ever talked to.

On Tue, 27 Apr 2010 13:29:58 -0700, the infamous Winston
scrawled the following:

I've worked with the 70 lb. demo hammers and I agree they would be stellar
performers in that role. I'm just not willing to work that hard for that
level of performance.

Grok that. I've had folks wanting me to use their tiny front-wheeled
rototillers on their half acre gardens and I immediately tell them "I
don't do that kind of work. Sorry!"


What I am doing now appears to be sufficient. That is, I'm compacting soil
by spearing it with the flat end of a 8' 2x4. Each strike appears to push
about 1/2" of air out of the soil. So I backfill and ram, then backfill some
more than ram some more until the bottom of the hole is 'at grade'.
The soil thus compacted maintains its shape very well when I dig the new
post hole and offers very similar resistance as does the surrounding
undisturbed soil.

Why aren't you flippin' drill pipe down those old holes with a
backhoe and dropping in steel fence posts for longer life and easier
replacement, Winnie?

--
Losing faith in humanity, one person at a time.

On 4/27/2010 5:17 PM, Larry Jaques wrote:
On Tue, 27 Apr 2010 13:29:58 -0700, the infamous Winston
scrawled the following:

I've worked with the 70 lb. demo hammers and I agree they would be stellar
performers in that role. I'm just not willing to work that hard for that
level of performance.

Grok that. I've had folks wanting me to use their tiny front-wheeled
rototillers on their half acre gardens and I immediately tell them "I
don't do that kind of work. Sorry!"

And yet the rear-tine jobbie do's are absolute cake to run.
Dad had a 5 HP Ariens Rocket when I was but a tadpole.
Nice machine! Scrawny 14 year old had no problems using it.

(...)

Why aren't you flippin' drill pipe down those old holes with a
backhoe and dropping in steel fence posts for longer life and easier
replacement, Winnie?

No budget or storage room for said backhoe or drill pipe.
Other than that, sounds like a blast!

--Winston


--

Harley was venal, arrogant, despicable and a psychologist.
He was the second most redundant man I ever talked to.