Travis Johnson wrote:No, they have to be geared lower because they are taking a whopping 1-1/2 to 2 inch drill bit to clean out the mortise for the tennon. A person makes a series of holes, then uses a big chisel called a slick to pare out the wood and make a rectangular hole. The tennon then fits inside that square slot and is pegged.
Travis Johnson wrote:I live in New England so we have these all over. However my general ideas on this stuff...anything really that cannot be found readily or cheaply, is to simply to build it yourself. Years ago manufacturing and parts were harder to do, and parts did not come for the internet. I have made a ton of my own tools, from small hand tools to implements for my tractor! Then not only is the tool valuable in use, but the knowledge gained in building it, even more so!!
A hand boring machine is easy to fabricate. My suggestion is to build one yourself if you cannot afford to buy one, or cannot find one.
Greg Schultz wrote:I've got a bee in my bonnet on timber framing. I'm a total newbie, and am doing a lot of rooting around. The only (manual) boring machines I can find are ebay items - most are pretty beat up, likely no longer true and would need significant rennovation. Prices range from $180 - $750. It seems to me that there is enough of a timber framing sub-culture that there would be a (small) market for new manual boring machines. Is anyone aware of any being manufactured and sold? Failing that, has anyone rennovated one? (I suspect that will be my path, I'll take pictures and post them....)