<html><head><base href="x-msg://11/"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "> Here in Little 'ole Ashland Oregon and I suspect all over the land, ordinary softwood logs were used for water pipes. They bored 2 to 4" dia holes right thru the center of 8 to 10 ft lengths and somehow maintained center...Have no idea how they managed that but it wold certainly give us a clue as to how to bore a simple 18 inches depth or so.... My trusty 18 volt dewalt with a spade bit dies after about 6" yet they managed 10 ft probably by hand auguring..Perhaps any of us in the over 80's club can recall.. <div><div> <br><div>Richard Stanley<br><div><div>On Jul 19, 2011, at 12:54 PM, Boll, Martin Dr. wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><span class="Apple-style-span" style="border-collapse: separate; font-family: Verdana; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div lang="DE" link="blue" vlink="purple"><div class="Section1" style="page: Section1; "><div style="margin-top: 0cm; margin-right: 0cm; margin-bottom: 0.0001pt; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman'; "><font size="2" face="Arial"><span lang="EN-GB" style="font-size: 10pt; font-family: Arial; ">Ron,<o:p></o:p></span></font></div><div style="margin-top: 0cm; margin-right: 0cm; margin-bottom: 0.0001pt; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman'; "><font size="2" face="Arial"><span lang="EN-GB" style="font-size: 10pt; font-family: Arial; "><o:p> </o:p></span></font></div><div style="margin-top: 0cm; margin-right: 0cm; margin-bottom: 0.0001pt; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman'; "><font size="2" face="Arial"><span lang="EN-GB" style="font-size: 10pt; font-family: Arial; ">To your question:<o:p></o:p></span></font></div><div style="margin-top: 0cm; margin-right: 0cm; margin-bottom: 0.0001pt; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman'; "><font size="2" face="Courier New"><span lang="EN-GB" style="font-size: 10pt; font-family: 'Courier New'; "><6. I wish I had seen how difficult it was to drill the central hole of the Rocket design.<o:p></o:p></span></font></div><div style="margin-top: 0cm; margin-right: 0cm; margin-bottom: 0.0001pt; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman'; "><font size="2" face="Courier New"><span lang="EN-GB" style="font-size: 10pt; font-family: 'Courier New'; "><Is there a power tool on the market like the chain saw <(but for drilling holes)?<o:p></o:p></span></font></div><div style="margin-top: 0cm; margin-right: 0cm; margin-bottom: 0.0001pt; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman'; "><font size="2" face="Courier New"><span lang="EN-GB" style="font-size: 10pt; font-family: 'Courier New'; "><o:p> </o:p></span></font></div><div style="margin-top: 0cm; margin-right: 0cm; margin-bottom: 0.0001pt; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman'; "><font size="2" face="Courier New"><span lang="EN-GB" style="font-size: 10pt; font-family: 'Courier New'; ">A “yes-but” answer:<o:p></o:p></span></font></div><div style="margin-top: 0cm; margin-right: 0cm; margin-bottom: 0.0001pt; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman'; "><font size="2" face="Courier New"><span lang="EN-GB" style="font-size: 10pt; font-family: 'Courier New'; "><o:p> </o:p></span></font></div><div style="margin-top: 0cm; margin-right: 0cm; margin-bottom: 0.0001pt; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman'; "><font size="2" face="Courier New"><span lang="EN-GB" style="font-size: 10pt; font-family: 'Courier New'; ">If you make the three asterisk cuts longitudinal through the log, about 2/3 or 3/4 , of the length of the log, there is automatically somehow a central hole.<o:p></o:p></span></font></div><div style="margin-top: 0cm; margin-right: 0cm; margin-bottom: 0.0001pt; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman'; "><font size="2" face="Courier New"><span lang="EN-GB" style="font-size: 10pt; font-family: 'Courier New'; ">To get this type of hole down to bottom, -and not to make high “cake-wedges” falling apart- Make the same asterisk cuts beginning from bottom, but only the needed amount of 1/ 4 or 1/3 .<o:p></o:p></span></font></div><div style="margin-top: 0cm; margin-right: 0cm; margin-bottom: 0.0001pt; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman'; "><font size="2" face="Courier New"><span lang="EN-GB" style="font-size: 10pt; font-family: 'Courier New'; ">__And__ set the in-cuts precisely in the round __between__ the in-cuts coming from top. So the log holds together.<o:p></o:p></span></font></div><div style="margin-top: 0cm; margin-right: 0cm; margin-bottom: 0.0001pt; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman'; "><font size="2" face="Courier New"><span lang="EN-GB" style="font-size: 10pt; font-family: 'Courier New'; ">The in-cuts from top and from bottom must overlap a little bit, otherwise there is no central hole running without stop from bottom to top.<o:p></o:p></span></font></div><div style="margin-top: 0cm; margin-right: 0cm; margin-bottom: 0.0001pt; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman'; "><font size="2" face="Courier New"><span lang="EN-GB" style="font-size: 10pt; font-family: 'Courier New'; "><o:p> </o:p></span></font></div><div style="margin-top: 0cm; margin-right: 0cm; margin-bottom: 0.0001pt; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman'; "><font size="2" face="Courier New"><span lang="EN-GB" style="font-size: 10pt; font-family: 'Courier New'; ">My experience with a very dry pine-log last year:<o:p></o:p></span></font></div><div style="margin-top: 0cm; margin-right: 0cm; margin-bottom: 0.0001pt; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman'; "><font size="2" face="Courier New"><span lang="EN-GB" style="font-size: 10pt; font-family: 'Courier New'; ">With some wind you get an unsymmetrical burn.<o:p></o:p></span></font></div><div style="margin-top: 0cm; margin-right: 0cm; margin-bottom: 0.0001pt; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman'; "><font size="2" face="Courier New"><span lang="EN-GB" style="font-size: 10pt; font-family: 'Courier New'; ">By the thread now I got the idea, one could experiment with aluminium-foil, partly wrapped round the log. – Many different manners possible-.<o:p></o:p></span></font></div><div style="margin-top: 0cm; margin-right: 0cm; margin-bottom: 0.0001pt; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman'; "><font size="2" face="Courier New"><span lang="EN-GB" style="font-size: 10pt; font-family: 'Courier New'; "><o:p> </o:p></span></font></div><div style="margin-top: 0cm; margin-right: 0cm; margin-bottom: 0.0001pt; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman'; "><font size="2" face="Courier New"><span lang="EN-GB" style="font-size: 10pt; font-family: 'Courier New'; ">Happy camp-fire experiments<o:p></o:p></span></font></div><div style="margin-top: 0cm; margin-right: 0cm; margin-bottom: 0.0001pt; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman'; "><font size="2" face="Courier New"><span lang="EN-GB" style="font-size: 10pt; font-family: 'Courier New'; "><o:p> </o:p></span></font></div><div style="margin-top: 0cm; margin-right: 0cm; margin-bottom: 0.0001pt; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman'; "><font size="2" face="Courier New"><span lang="EN-GB" style="font-size: 10pt; font-family: 'Courier New'; ">Martin<o:p></o:p></span></font></div><div style="margin-top: 0cm; margin-right: 0cm; margin-bottom: 0.0001pt; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman'; "><font size="2" face="Courier New"><span lang="EN-GB" style="font-size: 10pt; font-family: 'Courier New'; "><o:p> </o:p></span></font></div><div style="margin-top: 0cm; margin-right: 0cm; margin-bottom: 0.0001pt; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman'; "><font size="2" face="Arial"><span lang="EN-GB" style="font-size: 10pt; font-family: Arial; "><o:p> </o:p></span></font></div></div>_______________________________________________<br>Stoves mailing list<br><br>to Send a Message to the list, use the email address<br><a href="mailto:stoves@lists.bioenergylists.org" style="color: blue; text-decoration: underline; ">stoves@lists.bioenergylists.org</a><br><br>to UNSUBSCRIBE or Change your List Settings use the web page<br><a href="http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org" style="color: blue; text-decoration: underline; ">http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org</a><br><br>for more Biomass Cooking Stoves, News and Information see our web site:<br><a href="http://www.bioenergylists.org/" style="color: blue; text-decoration: underline; ">http://www.bioenergylists.org/</a><br><br></div></span></blockquote></div><br></div></div></div></body></html>