Author Topic: Is this safe?  (Read 1247 times)

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Offline Packard

  • Posts: 851
Is this safe?
« on: November 23, 2021, 12:36 PM »
I found this image on the Woodpeckers site.  Can this be a safe way to use a router?  Can this allow the router to trap the material and run away?

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Offline usernumber1

  • Posts: 191
Re: Is this safe?
« Reply #1 on: November 23, 2021, 12:44 PM »
lol. i don't like anything about that setup. im sure its fine

Offline Alex

  • Posts: 7740
Re: Is this safe?
« Reply #2 on: November 23, 2021, 12:48 PM »
Occasionally I have done cuts like this, I never had a problem.

Offline guybo

  • Posts: 201
Re: Is this safe?
« Reply #3 on: November 23, 2021, 12:50 PM »
« Last Edit: November 23, 2021, 01:13 PM by guybo »

Offline ChuckS

  • Posts: 3019
Re: Is this safe?
« Reply #4 on: November 23, 2021, 01:44 PM »
The operation in that manner (assuming the bit in the WP photo was a straight one) was similar to setting the fence away from the bit on a router table, and then feeding the work in between the bit and the fence.

Would I do that? Of course not, even if making light cuts. When I do rabbets, I either use a rabbeting bit, or cut the rabbets before assembly with a straight bit on the router table.

Offline JD2720

  • Posts: 1236
Re: Is this safe?
« Reply #5 on: November 23, 2021, 03:15 PM »
I am sure I have done it at some point early on before there were good rabbeting bits with ball bearing pilots. I do not see any reason to do it now.

Offline Packard

  • Posts: 851
Re: Is this safe?
« Reply #6 on: November 23, 2021, 03:38 PM »
It seems like using a fence and a miter gage on the table saw at the same time. If it goes off the edge guide a bit while pushing forward it looks to me like it would jam and make the router scoot across the room. 

I would have used a guided bit from the inside and cleaned up the corners with a chisel.

Offline Cheese

  • Posts: 9105
Re: Is this safe?
« Reply #7 on: November 23, 2021, 10:04 PM »
If it goes off the edge guide a bit while pushing forward it looks to me like it would jam and make the router scoot across the room. 

I wouldn't be that bold as to make that statement...that's what those massive biceps are for.   [smile]
Besides, it's all about mechanical advantage/leverage and a small 1/2" diameter router bit will not be capable of propelling a 9# router across the room. It could, if not controlled leave a nasty divot in the wood, and that would be unfortunate but it has been done this way in a pinch many times before

Just remember, if you're uncomfortable with the routing method that you're using, then maybe it's time to rethink the methodology you're using.
« Last Edit: November 23, 2021, 10:17 PM by Cheese »

Offline Svar

  • Posts: 2430
Re: Is this safe?
« Reply #8 on: November 23, 2021, 11:00 PM »
Generally a bad idea. I've done similar thing few times, but in a situation when I had little choice and I took multiple precautions to control the workpiece and tool. The first time I attempted this the piece got trapped and launched across the room like a spear.

Offline notenoughcash

  • Posts: 197
  • to many ideas, not enough cash....
Re: Is this safe?
« Reply #9 on: November 24, 2021, 03:49 AM »
doesnt look very safe, and as others pointed out, i would have used a bearing bit.
turns out that woodworking is 1% making things you'll use, 4% making bespoke high end firewood, 15% cleaning, and 80% looking for the bl**dy thing you just put down

Offline JonnyBBravo

  • Posts: 19
  • Amor Fati!
Re: Is this safe?
« Reply #10 on: November 24, 2021, 07:18 PM »
I’ve used this router at a guys shop as what it’s what he had. I’ve never had it run away on me. It’s not the most stable edge guide but I wouldn’t hold the guide like that. I would make a firm grasp to the side. So if anything went wrong my fingers do find a way to center of the the bit by the way this person is holding it in the picture. Mainly used this to cut on MDF. All I’ll say is the edge guide not pressed firm against the edge you will have slight drift and also tilt if it’s not supported well. It’s not the best edge guide for it but those are my experiences using it.

Offline Crazyraceguy

  • Posts: 831
Re: Is this safe?
« Reply #11 on: November 25, 2021, 09:20 AM »
There are several issues here as most have pointed out. The trapped cut though, is the least of them as I see it. A trapped cut like that on a solidly held, single piece, that is made in the "conventional cut" direction and a light cut, would be somewhat acceptable. Not ideal, there are better ways, but it would work.
The problems the I really see here are far more severe.
First is the inside cut of an enclosed space. The is no way to start this cut "off the work" when it is internal like that, other than plunging straight down, not good.

Second is the closed space itself. What do they think is going to happen when you get to the corners?

Third is the fence itself. Those have a opening that is intended to straddle the bit, much like a router table. They work just fine when doing that, but if you have any more off-set than that, you need to attach a single piece to span that gap. The router will "fall into" that gap when it gets to the end. At minimum this spoils the cut, and worse may injure the user and or tool too.
These fences, from all brands, have holes in them intended for screws to hold on and auxiliary face to solve this issue.
The nicer brands (Festool) have sliding parts to accomplish this same goal.

Either way, this is lousy advertising. Someone should have seen that this was bad and definitely not the intended use of this edge guide. Normally they are hyper-vigilant about safety things and warnings that pretty much anyone already knows, or wouldn't do anyway. They all give warnings that people read and say "well that's silly" or "who would do that?"
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