For cutting curves I have done it both ways. Cut close to the line traced
from a template and sand to the line OR cut close to the line and rout to
the template using a pattern bit.
Tonight I used the rout to the line with a pattern bit (top bearing). On
the up-grain pass I had a little chip out. The down-grain pass never gives
me any problems. I have tried climb cutting on the up-grain pass with
limited success. It always grabs and pulls the wood from me.
Which way do you do it? Rout to the line or sand to the line. I always
look back at how my TV buddies do it and it seems that Nahmie likes to sand
to the line while Marks like to rout.
If I've already got the template made I generally rout it. Get
yourself a top and bottom bearing bit and you can flip the workpiece/
template over (assuming you've used carpet tape to attach it) and
won't have to worry about a climb cut at all.
Since I have several routers and bits with bearings at both ends, I
guess I could also just set up a second router until I spring for a
double bearing bit.
I don't have problems lightly climb cutting, but to not have to worry at
I tend to route to the template. Reason is, if I screw up sanding the
template, I can make another one. The way to avoid chipout is to route from
the template side until the grain reverses then flip it over and go from the
other side. Note that you will need two router bits for this, one top and
the other bottom bearing. Another way is to use a bushing with a spiral bit.
Lot less tendency to tear out that way.
Two answers given, my preferred the spiral and climb cut for multiples.
Pattern can be used with collar/bearing and registration pins and a cut from
other side. Usually pretty easy to add register points when making a
template a couple inches longer than the piece to make entry/exit easier.
For one-offs, spokeshave or sand. But I have an OSS
| Tonight I used the rout to the line with a pattern bit (top
| bearing). On the up-grain pass I had a little chip out. The
| down-grain pass never gives me any problems. I have tried climb
| cutting on the up-grain pass with limited success. It always grabs
| and pulls the wood from me.
I almost always rout with a (software) template and clamp the
workpiece so that it _can't_ move relative to the template.
In a router table context, that translates into a firm attachment
between template and workpiece; and use of pilot bearings. Use
conventional/climb cut to suit the workpiece grain.
BTW, I've noticed that MLCS offers pattern/trim bits with pilot
bearings at _both_ ends of the cutter, so that you can flip the
workpiece and template, adjust the height of the bit, and keep going
without needing to change bits. I don't know if those are worth
spending for; but they might make some jobs go faster.
DeSoto, Iowa USA
I bandsaw very close to the line, and then rout, including climb cutting
as appropriate. If the cut is light enough, I've never had issues climb
FWIW, I sand the template to the line, so I guess I do all three! <G>
Wed, Feb 7, 2007, 8:23pm .@. (Stoutman) doth query:
<snip> Which way do you do it? Rout to the line or sand to the line.
Rout. I usually rout small details, so the sanding thingies I've
seen wouldn't be near small enough. Routing works very well for me.
However, anyone can feel free to sent me aalong some sanding thingies,
so I can try that too.
Only those who have the patience to do simple things perfectly will
acquire the skill to do difficult things easily.
- Johann Von Schiller
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