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Old 05-03-2012, 11:54 PM   #1
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RotoZip for back cutting moldings?


Anyone else do this?

I've found it's easier to use my RotoZip than it is to use the old coping saw, and it's definitely a lot faster....

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Old 05-04-2012, 10:13 AM   #2
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RotoZip for back cutting moldings?


I guess I could see using a rotozip but just never thought of it is a finish carpentry tool. Of new tools I used my oscillating Fein for such things more than anything else.

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Old 05-04-2012, 10:53 AM   #3
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RotoZip for back cutting moldings?


When cutting base After the first back cut I flip it over and cut all but the ogee, and finish with a coping saw, if it's off I use a Dremal tool with a sanding drum.
Works for me.
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Old 05-04-2012, 12:06 PM   #4
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RotoZip for back cutting moldings?


I use a good pair of compasses, a hand held coping saw and a piece of 100 grit sandpaper glued to a piece of dowel.............guess I'm "Old School"

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Old 05-04-2012, 06:09 PM   #5
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RotoZip for back cutting moldings?


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Last edited by mrgins; 05-04-2012 at 06:12 PM.
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Old 05-04-2012, 06:11 PM   #6
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RotoZip for back cutting moldings?


I've used a knife, coping saw, rasp, and rotozip. If it's hardwood mouldings, then a rotozip is a good idea, but for soft wood, it's a bit aggressive and is just another cord to trip over
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Old 05-04-2012, 07:39 PM   #7
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RotoZip for back cutting moldings?


so your talking about coping moldings, not back cutting

when i cope joints i use a jig saw and cut from the back using the fine bosch blades which are borderline designed for coping.. much faster than a coping saw, more precise than using a table saw and no cleaning up the cut with a knife.. and less messy than using a angle grinder equipped with a flap sander wheel. ive also used the "copemaster" system which requires making a negative blank of the profile using resin, when the blank is ready it gets clamped into a jig which you simply use a trim router with a 3/16" flush cutting bit
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Old 05-04-2012, 07:49 PM   #8
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RotoZip for back cutting moldings?


Don't know about the OP, but I'm talking about back cutting.
I'll have to try those bosch blades
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Old 05-04-2012, 10:39 PM   #9
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RotoZip for back cutting moldings?


When coping I do like Kirk mentioned above. I use porter cable scrolling blades in my older p/c jigsaw,model# 7349. Any cleaning up I use a rattail file. After the first cope of the day, they go pretty quick, maybe a minute or less on a 4-6" base with a lamb's tongue on top for example. One thing that makes a difference for me is the p/c jigsaw has adjustable guide blocks on the bottom with a very small opening in the base plate. So it offers good support on the narrow width of the cope area, and the blade doesn't wander.
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