How shallow is too shallow.

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Forum topic by Carloz posted 01-14-2018 05:39 PM 583 views 0 times favorited 6 replies Add to Favorites Watch
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1147 posts in 1442 days

01-14-2018 05:39 PM

When making raised panel doors with 3-1/8-Inch diameter router bit I cut off as large bevel as I can on the table saw and then trim it with the router.
Even with that I have to make around 8 or so passes on hard maple. Taking more than 1/16” makes the cut much scarier. The bit is sharp and the cut quality is still good but the whole setup produces more noise and vibration than I would like.
This is not a problem with softer woods. On pine can take as deep cut as I feel still produces adequate quality.

Am I being too cautions ?

6 replies so far

View Luthierman's profile


225 posts in 1938 days

#1 posted 01-14-2018 06:50 PM

In the cabinet shop we usually only do two passes. Granted, it is on a 7hp 1500lb machine. No vibration. I also don’t do any pre-cut with the table saw. I can see doing that on a smaller setup as being scary though. Doing what you are doing may not be necessary, but if it works for you and yields good results, I don’t see a problem. If something feels unsafe, chances are, it IS unsafe. Do what makes you feel comfortable.

Do you use any feather boards?

-- Jesse, West Lafayette, Indiana

View mikeber's profile


37 posts in 1711 days

#2 posted 01-15-2018 03:35 AM

Maple is hard, and being cautious smart, but that sounds like too many passes.
First question: did you match the router speed to that humangus cutter? What router are you using?

View Carloz's profile


1147 posts in 1442 days

#3 posted 01-15-2018 04:00 AM

Yes I dialed it down to the lowest setting. The router is 2.3 HP Bosch.
Maybe everything is cool but zi am too chicken to press it harder

View SweetTea's profile


477 posts in 1510 days

#4 posted 01-15-2018 11:11 AM

I have a 3HP Grizzly G1026 shaper that I use solely for making raised panels, and even with it being 3HP I can’t even hog off that much in one pass on a maple raised panel. I would normally do it in 4-6 passes with maple if feeding by hand. I have a skimpy 1/4HP Grizzly power feeder and with it I can do it with 3 passes on a good day. My next upgrade will definitely be bigger power feeders.

View Dustin's profile


707 posts in 1591 days

#5 posted 01-15-2018 12:33 PM

I think this is a scenario in which you have to weigh efficiency vs safety/security. One oft overlooked aspect of the former is that how safe you feel in any given operation is also of utmost importance (if for no other reason than that it effects your ability to enjoy woodworking). Personally, I’d rather save getting my heart racing for exercise, and take it slow with my machines. If I perform an operation in my shop which makes me breath a sigh of relief afterwards, I need to reevaluate my process.

-- "Ladies, if your husband says he'll get to it, he'll get to it. No need to remind him about it every 6 months."

View Craftsman on the lake's profile

Craftsman on the lake

3468 posts in 4288 days

#6 posted 01-15-2018 01:36 PM

I have a 3 1/4 hp triton in a a router table. I have frued raised panel bits of the same size you do. I usually need to make 4-5 passes. No table saw cuts. No vibration. Stupid question here. Of course you’re using these bits in a router table right?

-- The smell of wood, coffee in the cup, the wife let's me do my thing, the lake is peaceful.

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