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Joe McMahon
10-08-2009, 4:45 PM
I am using some walnut in my bench construction. I got a white pencil for marking but it doesn't do a very good job. It skips and has to be marked a half dozen times before I get even a light mark.

Does anyone have any ideas on what I could use that would put a good line on walnut???

TIA, Joe

Bob Smalser
10-08-2009, 4:54 PM
http://pic20.picturetrail.com/VOL12/1104763/2594266/375648998.jpg

Knife across the grain and awl with the grain....the cuts also serve to minimize any chipping. Pencils lack precision.

For rough layout during stock selection, use blackboard chalk.

David Gendron
10-08-2009, 5:04 PM
What I do, is I mark with marking knife(both across and with the grain) and hightlite the "cut" with a yellow color "PRISMACOLOR" "VERITHIN" crayon sharpened as a chisel edge and it work realy good!

Howard Pollack
10-08-2009, 5:25 PM
I use a red (shows up surprisingly well) fine point pen. -Howard

Eric Brown
10-08-2009, 6:30 PM
I use a red or orange pencil sometimes but found that the kerf starters from Glen Drake do the job better. It basically cuts a groove the same width as your sawblade. The saw then "falls" into the groove. Easy to see too.

Eric

Joe McMahon
10-08-2009, 6:58 PM
http://pic20.picturetrail.com/VOL12/1104763/2594266/375648998.jpg

Knife across the grain and awl with the grain....the cuts also serve to minimize any chipping. Pencils lack precision.

For rough layout during stock selection, use blackboard chalk.

I am installing a walnut chop on my Roubo. To identify the screw hole you have to carry the line clear around the chop so I really do not want to use a marking knife. I guess I'll try the red. I do have another problem, color blindness so I hope it shows up.

Keith Christopher
10-08-2009, 8:14 PM
I use a white artists pencil from the local artists supply store. They sharpen quite nicely and don't take much pressure to leave a mark.

David Gendron
10-08-2009, 11:28 PM
Since you don't want to mark a line and in this case, I understand... the use of a colored pencil and a square should work just fine!
Good luck!
Do you by any chance some picture of that bench of yours you could share??
thank you!

Joe McMahon
10-09-2009, 12:04 AM
David, so far I only have the top done. It is hard maple with two walnut boards 3" in on each side and walnut ends. I plan on doing maple legs & stretchers with a walnut face vise chop. I do have some photos of the top though:

http://i90.photobucket.com/albums/k262/joemac18/Roubo/P1010016-1.jpg (http://www.sawmillcreek.org/%3Ca%20href=)">

http://i90.photobucket.com/albums/k262/joemac18/Roubo/P1010021.jpg (http://www.sawmillcreek.org/%3Ca%20href=)">http://i90.photobucket.com/albums/k262/joemac18/Roubo/P1010021.jpg (http://s90.photobucket.com/albums/k262/joemac18/Roubo/?action=view&current=P1010021.jpg)

David Gendron
10-09-2009, 1:19 AM
Realy Nice bench... so far! How long is it?

Bob Smalser
10-09-2009, 7:30 AM
To identify the screw hole you have to carry the line clear around the chop so I really do not want to use a marking knife.

There's no need for anything more than a tiny tic on each corner to carry a line from front to back.

Colored pencils make lines wider than you'll prefer to make errors.....pick one side of your pencil lines and stick to it.

Dave Anderson NH
10-09-2009, 10:02 AM
I keep small plastic container containing white chalk dust on the shelf under my bench for use on walnut and dark woods. I'm with Bob Smalser on this one. Mark with a marking knife, cutting gage, or whatever is needed, and then rub some chalk into the line. The excess is easily removable with mineral spirits, alcohol, or water.

Joe McMahon
10-09-2009, 12:54 PM
David, thanks. It is a little over 8' long and 24" wide. I have already laminated the legs and they are 5" square. I have to cut the stretchers and the mortices in the top and legs then fit the base assembly. Since I can use a drill press while the legs are separate, I want to so the boring on the chop leg before assembly and save myself some work and be as accurate as possible with my holes.

Joe

David Gendron
10-09-2009, 1:26 PM
Good work, keep us posted!

Eric Brown
10-09-2009, 5:46 PM
You could use some masking tape and then mark on it.
You could also build a U shaped block, drill it, and use it as an alignment guide.

Eric