Derek Cohen
10-08-2011, 12:51 PM
When I started the thread "Against the Clock" the intention was to explore efficiency. Looking back I thought the methods used could have been improved, and that doing so would provide the efficiency I sought for the remaining (now eight) drawers left to build.
So here I offer two methods for the removal of waste from half blind dovetail pins. Both work easily and fairly quickly. One is power assisted and the other is 100% handtool.
Interestingly, where the previous drawer was a frantic 4 hour race against the clock, today was a relaxed 3 1/2 hour session.
Starting with a marked, sawn and kerfed pin board ...
http://i13.photobucket.com/albums/a262/Derek50/Furniture/Military%20Chests/Dovetailing/DWaste1.jpg
Two pins were routed and two were chopped out for comparison. The difference this time is that the boards were placed flat (rather than vertically) for the routing ...
http://i13.photobucket.com/albums/a262/Derek50/Furniture/Military%20Chests/Dovetailing/DWaste2.jpg
... and only the baseline was cleared (with a 1/16" left to finish with a chisel) ..
http://i13.photobucket.com/albums/a262/Derek50/Furniture/Military%20Chests/Dovetailing/DWaste3.jpg
http://i13.photobucket.com/albums/a262/Derek50/Furniture/Military%20Chests/Dovetailing/DWaste4.jpg
That took 8 minutes to complete:
http://i13.photobucket.com/albums/a262/Derek50/Furniture/Military%20Chests/Dovetailing/DWaste5.jpg
Method #2 involved progressively chopping out a mortice ...
http://i13.photobucket.com/albums/a262/Derek50/Furniture/Military%20Chests/Dovetailing/DWaste6.jpg
... and then splitting out the waste as the mortice deepened. This is the method I generally use ..
http://i13.photobucket.com/albums/a262/Derek50/Furniture/Military%20Chests/Dovetailing/DWaste7.jpg
This required a total of 10 minutes ...
http://i13.photobucket.com/albums/a262/Derek50/Furniture/Military%20Chests/Dovetailing/DWaste8.jpg
The above was repeated with the remaining two pins. Both were completed in a further 10 minutes ..
http://i13.photobucket.com/albums/a262/Derek50/Furniture/Military%20Chests/Dovetailing/DWaste9.jpg
.. and the pin and tail boards fitted ...
http://i13.photobucket.com/albums/a262/Derek50/Furniture/Military%20Chests/Dovetailing/DWaste10.jpg
Likes and dislikes: I dislike the noise of a router. Dust is not a problem as the Elu I have is efficient at sucking the dust into a Fein vacuum cleaner. This is a speedier method, but chiseling is very close behind. On the other hand I like that the router has a depth stop and that there is no danger of blowing out or cracking the face of the pin board with an overzealous chisel blow. This is always on my mind as I chop into the hard Jarrah. Routing the initial mortice does remove a great deal of stress from the process.
For the other side of the drawer I decided to use the router alone to gauge the ease/speed more realistically by excluding interruptions, such as photos.
http://i13.photobucket.com/albums/a262/Derek50/Furniture/Military%20Chests/Dovetailing/DWaste11.jpg
http://i13.photobucket.com/albums/a262/Derek50/Furniture/Military%20Chests/Dovetailing/DWaste12.jpg
After a casual 35 minutes ...
http://i13.photobucket.com/albums/a262/Derek50/Furniture/Military%20Chests/Dovetailing/DWaste13.jpg
The rear of the drawer was dovetailed and assembled ..
http://i13.photobucket.com/albums/a262/Derek50/Furniture/Military%20Chests/Dovetailing/DWaste14.jpg
Progress to date:
http://i13.photobucket.com/albums/a262/Derek50/Furniture/Military%20Chests/Dovetailing/DWaste15.jpg
Hopefully the next thread on the military chests will be to show the completed drawers.
Regards from Perth
Derek
So here I offer two methods for the removal of waste from half blind dovetail pins. Both work easily and fairly quickly. One is power assisted and the other is 100% handtool.
Interestingly, where the previous drawer was a frantic 4 hour race against the clock, today was a relaxed 3 1/2 hour session.
Starting with a marked, sawn and kerfed pin board ...
http://i13.photobucket.com/albums/a262/Derek50/Furniture/Military%20Chests/Dovetailing/DWaste1.jpg
Two pins were routed and two were chopped out for comparison. The difference this time is that the boards were placed flat (rather than vertically) for the routing ...
http://i13.photobucket.com/albums/a262/Derek50/Furniture/Military%20Chests/Dovetailing/DWaste2.jpg
... and only the baseline was cleared (with a 1/16" left to finish with a chisel) ..
http://i13.photobucket.com/albums/a262/Derek50/Furniture/Military%20Chests/Dovetailing/DWaste3.jpg
http://i13.photobucket.com/albums/a262/Derek50/Furniture/Military%20Chests/Dovetailing/DWaste4.jpg
That took 8 minutes to complete:
http://i13.photobucket.com/albums/a262/Derek50/Furniture/Military%20Chests/Dovetailing/DWaste5.jpg
Method #2 involved progressively chopping out a mortice ...
http://i13.photobucket.com/albums/a262/Derek50/Furniture/Military%20Chests/Dovetailing/DWaste6.jpg
... and then splitting out the waste as the mortice deepened. This is the method I generally use ..
http://i13.photobucket.com/albums/a262/Derek50/Furniture/Military%20Chests/Dovetailing/DWaste7.jpg
This required a total of 10 minutes ...
http://i13.photobucket.com/albums/a262/Derek50/Furniture/Military%20Chests/Dovetailing/DWaste8.jpg
The above was repeated with the remaining two pins. Both were completed in a further 10 minutes ..
http://i13.photobucket.com/albums/a262/Derek50/Furniture/Military%20Chests/Dovetailing/DWaste9.jpg
.. and the pin and tail boards fitted ...
http://i13.photobucket.com/albums/a262/Derek50/Furniture/Military%20Chests/Dovetailing/DWaste10.jpg
Likes and dislikes: I dislike the noise of a router. Dust is not a problem as the Elu I have is efficient at sucking the dust into a Fein vacuum cleaner. This is a speedier method, but chiseling is very close behind. On the other hand I like that the router has a depth stop and that there is no danger of blowing out or cracking the face of the pin board with an overzealous chisel blow. This is always on my mind as I chop into the hard Jarrah. Routing the initial mortice does remove a great deal of stress from the process.
For the other side of the drawer I decided to use the router alone to gauge the ease/speed more realistically by excluding interruptions, such as photos.
http://i13.photobucket.com/albums/a262/Derek50/Furniture/Military%20Chests/Dovetailing/DWaste11.jpg
http://i13.photobucket.com/albums/a262/Derek50/Furniture/Military%20Chests/Dovetailing/DWaste12.jpg
After a casual 35 minutes ...
http://i13.photobucket.com/albums/a262/Derek50/Furniture/Military%20Chests/Dovetailing/DWaste13.jpg
The rear of the drawer was dovetailed and assembled ..
http://i13.photobucket.com/albums/a262/Derek50/Furniture/Military%20Chests/Dovetailing/DWaste14.jpg
Progress to date:
http://i13.photobucket.com/albums/a262/Derek50/Furniture/Military%20Chests/Dovetailing/DWaste15.jpg
Hopefully the next thread on the military chests will be to show the completed drawers.
Regards from Perth
Derek