I tried to answer this a couple of weeks ago but for some reason i could not send messages from my account at a remote location. I'll have to get on to my service provider to find out why, in the mean time I couldn't write to them either.
Someone has already suggested suspending the demolission drill from ropes or a sling from overhead which can work well but I am wondering why you are not boring the hole from the outside? Much less dust and debris in the house. There is a bit of a trick to punching through with one of those. They work best with a bit of a diagonal approach. You batter a bit away then chip out the edges then a little more at the bottom and then again the edges and so on.My observation of street crews is that it seems to work best to have a big jiggling belly leaning over one of those machines. I had a small one here a few years ago to punch a hole 40 inches wide through a poured wall to create a doorway through from my old basement into the new one. This was a little easier in some ways because I was able to chip down from the top in parallel lines. I thought I would then be able to just bust out the middle with my 10 pound sledge but the wall was full of steel, old bed frames and pipe and within that width I removed 48 old horse shoes all intertwined. I kept having to stop and saw through these bits of steel where they passed through the cut I was making. It took me all of three days to knock out the doorway in rough before taking the electric chisel back to the rental agency, I trued it up a bunch with a hand chisel and four lb. mallet after that. There were a number of stones too, from about golf ball to baseball size which, once marked adequately broke off pretty well. It was the damn steel though, I had hoped I would be able to break out fairly big chunks and wrestle them out but big chunks became way too large to handle held together by all that steel. A four inch core bit would be the best way to go but I am guessing event the rent on that would be very high. Dale Leavens, Cochrane Ontario Canada [EMAIL PROTECTED] Skype DaleLeavens Come and meet Aurora, Nakita and Nanook at our polar bear habitat. ----- Original Message ----- From: "Dan Rossi" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Monday, July 24, 2006 9:17 AM Subject: [BlindHandyMan] My aching shoulders. > As part of the great deck plan, I have to move the exhaust vent for my > dryer. It currently goes up over the sill plate and through the > band-board and bricks just at the top of the foundation wall. However, > since the ledger board for the deck will completely cover that area, I > need to move the dryer vent lower down, through the foundation wall. > > The wall is supposedly, three core block with a molded stone face on the > outside. > > First, I pulled out the current dryer vent, chiseled out the pieces of > brick, cleaned out the old mortar, and found two whole matching bricks to > seal the hole up. I didn't have mortar on hand so just plugged the hole > up for now. since I've never done any brick work before, I've managed to > procrastinate finishing that part of the job for now. > > Then I went into the basement and chucked up a half inch masonry bit into > my hammer drill. I marked out the 4.25 inch circle in the middle of > one of the blocks and started drilling a hole at the 12:00 position. > After the three plus inches of drill bit didn't hit a void, I broke out > the shiny new ten inch bit I purchased. After a half our of on and off > drilling, to let the bit cool down here and there, I had plunged that > sucker right up to the chuck and had still not punched through. > > I put the shorter bit back in and drilled holes at the 9:00 and 3:00 > positions and still no void in the block. I resigned myself to break out > the chisels and hammer. Since I didn't have chisels or a small sledge, it > was out to Lowes for us. Some large quantity of money later I was the > proud owner of a rather hefty bag of mortar, a couple of trowels, a > striking tool for the tricky mortar joints, two rather large and heavy > chisels, and a three pound, short-handeled mallet. > > After disconnecting the dryer gas line so I could move it out of the way, > I started in on the wall with sledge and chisel. A couple of hours later, > and about an inch into the wall I decided this was not going to work. I > have now borrowed a rather impressive looking demolition drill from my > future brother-in-law. The damn box nearly pulled my arm out of the > socket when I went to pick it up. Hell, the chisels and 12 inch long, one > inch diameter bit he had in the case weigh almost as much as my little > hammer drill. > > Later this week I may go out to Lowes and see if I can rent a core bit and > just plow through the wall in one fell swoop. If not, it will be a lot of > drilling and chiseling through what appears to be 12 inches of solid > block. SHEESH! > > -- > Blue skies. > Dan Rossi > Carnegie Mellon University. > E-Mail: [EMAIL PROTECTED] > Tel: (412) 268-9081 > > > > To listen to the show archives go to link > http://acbradio.org/handyman.html > or > ftp://ftp.acbradio.org/acbradio-archives/handyman/ > > The Pod Cast address for the Blind Handy Man Show is. > http://www.acbradio.org/news/xml/podcast.php?pgm=saturday > > The Pod Cast address for the Cooking In The Dark Show is. > http://www.gcast.com/u/cookingindark/main.xml > > Visit The New Blind Handy Man Files Page To Review Contributions From > Various List Members At The Following Address: > http://www.jaws-users.com/handyman/ > Visit the new archives page at the following address > http://www.mail-archive.com/[email protected]/ > For a complete list of email commands pertaining to the Blind Handy Man > list just send a blank message to: > [EMAIL PROTECTED] > Yahoo! Groups Links > > > > > > > > > > -- > No virus found in this incoming message. > Checked by AVG Free Edition. > Version: 7.1.394 / Virus Database: 268.10.4/396 - Release Date: 24/07/2006 > To listen to the show archives go to link http://acbradio.org/handyman.html or ftp://ftp.acbradio.org/acbradio-archives/handyman/ The Pod Cast address for the Blind Handy Man Show is. http://www.acbradio.org/news/xml/podcast.php?pgm=saturday The Pod Cast address for the Cooking In The Dark Show is. http://www.gcast.com/u/cookingindark/main.xml Visit The New Blind Handy Man Files Page To Review Contributions From Various List Members At The Following Address: http://www.jaws-users.com/handyman/ Visit the new archives page at the following address http://www.mail-archive.com/[email protected]/ For a complete list of email commands pertaining to the Blind Handy Man list just send a blank message to: [EMAIL PROTECTED] Yahoo! 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