hi all :)
been a while since i posted last.
every so often i get e-mail from a tool shop that specialises in wood working tools. usually i just glance and delete them as junk mail. this time something caught my attention. router bits specifically designed for bird mouth construction. not only that, but they also have a link to a video on using them!
the first posts on the forum, in the paddles, techniques, boat transportation, storage and maintenance section involved using a circular saw on a saw table to make the v. i used a 90deg router bit for my paddle shafts and seat frames strait over the top of the bit. didn't know there was such a thing as bit specifically for birds mouth, and also with different angles for different numbers of sides besides the standard 8.
for anyone interested the bits are made by a company called torquarta.
bird mouth router bits
Re: bird mouth router bits
I have aspirations of doing a few projects with birdmouth as well, these are the ones I got from Lee Valley
http://www.leevalley.com/en/wood/page.a ... 9435,46174
I suspect there are a few more sources as well.
Brian
http://www.leevalley.com/en/wood/page.a ... 9435,46174
I suspect there are a few more sources as well.
Brian
- Patricks Dad
- Posts: 1476
- Joined: Wed Oct 13, 2004 1:11 pm
- Location: Warrenville, Illinois
Re: bird mouth router bits
I've always just used a table saw set at a 45 degree angle. The router bit approach might be a bit easier (although may take a bit more setup time).
Re: bird mouth router bits
I think the main advantage of the router bits, is they have different angles, allowing a different number of sides to the project, I think the ones have go from 6 to 18 sides.
There are a lot of other interesting projects and building techniques using these bits.
Brian
There are a lot of other interesting projects and building techniques using these bits.
Brian
Re: bird mouth router bits
pd: when you use your method, you are stuck with 8 sides, and you always have that little bit of extra material sticking up past the level of the timber. for something that you are intending to make round, this is fine because you were always going to sand those down anyway. with these bits it allows you, up to a certain thickness of material, to set it up so that you get a flush fit. would have been useful for example when i made my seat frames, one of which was rounded, but the other was left octagonal. also would have been useful for the tea box i made from scrap left over from making the canoe.Patricks Dad wrote:I've always just used a table saw set at a 45 degree angle. The router bit approach might be a bit easier (although may take a bit more setup time).
for those in north america the lee valley bits look to be the same as the ones i've seen.
the australian vendor for these bits, timbercon has a video on how to use them, that might make it clearer.
Re: bird mouth router bits
I learned quite a bit from this guys videos ... alot of good info and ideas IMO.
http://www.davidhenrywoodarts.com/videos.html
Brian
http://www.davidhenrywoodarts.com/videos.html
Brian
- Patricks Dad
- Posts: 1476
- Joined: Wed Oct 13, 2004 1:11 pm
- Location: Warrenville, Illinois
Re: bird mouth router bits
Rabbit, You're right. the table saw approach (in it's easiest form using a symmetric cut) does indeed leave extra wood to remove for a round result. The router bit approach gives more control. Nice.