Whenever I use a round-over bit on my router I end up with a small edge
where the roundover bit ends. I have tried to adjust the router height
so that you can't see this and even though I can get it close it's
always there. I am cutting dozens and dozens of pieces and end up
having to sand each of them after using the router.........a major
hassle!

Does anyone have any suggestions for me?

Thank you!

II

Typically I have had this problem also, but I find the amount of
sanding minimal. You might find roundover bit that would reduce this
to almost a nonexistant problem, but with a good bit, I would think the
amount of effort to clean up this line not to be a concern. I would be
interested in other woodworker's reaction to this this perceived
problem.

wrote:

Whenever I use a round-over bit on my router I end up with a small edge
where the roundover bit ends. I have tried to adjust the router height
so that you can't see this and even though I can get it close it's
always there. I am cutting dozens and dozens of pieces and end up
having to sand each of them after using the router.........a major
hassle!

Does anyone have any suggestions for me?

Thank you!

II

Is the bearing just ever so slightly undersized? To find out set the
fence proud of the bearing in a router table and see if the problem goes
away with careful set up of the height.

Dave

Perhaps your workpiece is not as flat as you might think it is. IOW both
opposite faces must be in the same plane.

If sanding and scraping ain't your game then try a dish bit, basically a
wide, planing router bit.

J.

wrote:

Whenever I use a round-over bit on my router I end up with a small edge
where the roundover bit ends. I have tried to adjust the router height
so that you can't see this and even though I can get it close it's
always there. I am cutting dozens and dozens of pieces and end up
having to sand each of them after using the router.........a major
hassle!

Does anyone have any suggestions for me?

Thank you!

II

Will a dish bit do the same thing as a roundover bit? Sorry John I am
a complete novice! I build fishing lures and wouldn't mind the sanding
but when you have literally hundreds to work with it becomes very
tiring.

I have tried adjusting the height dave but can't ever seem to get it to
go away "completely". I am using hard maple so the sanding part is
"hard"!

I have tried a flat file to sand them, sandpaper, a drum sander on my
drill press, a belt sander, they all work but the amount of time needed
to correct the problem is considerable and it really wears me down
after doing 30 of them.

II

wrote:


I have tried adjusting the height dave but can't ever seem to get it to
go away "completely". I am using hard maple so the sanding part is
"hard"!


that's why I think your bearing MIGHT be undersize. see my earlier post
for determining that.
dave

wrote:
Whenever I use a round-over bit on my router I end up with a small edge
where the roundover bit ends. I have tried to adjust the router height
so that you can't see this and even though I can get it close it's
always there. I am cutting dozens and dozens of pieces and end up
having to sand each of them after using the router.........a major
hassle!

Does anyone have any suggestions for me?

Thank you!

II

I agree with Dave. The bearing is slightly narrow or (I have had two
roundover bits like this) the cove of the bit is less then 90 degrees.
They both went in the garbage. I stick to higher-end router bits now.

Wayne

wrote:


I agree with Dave. The bearing is slightly narrow or (I have had two
roundover bits like this) the cove of the bit is less then 90 degrees.
They both went in the garbage. I stick to higher-end router bits now.

Wayne

what brand was it, Wayne?

dave

wrote:
Whenever I use a round-over bit on my router I end up with a small
edge where the roundover bit ends. I have tried to adjust the router
height so that you can't see this and even though I can get it close
it's always there. I am cutting dozens and dozens of pieces and end
up having to sand each of them after using the router.........a major
hassle!

Does anyone have any suggestions for me?

Is your roundover bit is actually that and not a bead bit? If so, your
bearing is too small. You can fix that by using a fence. If the "edge"
is on the side of the board rather than the edge your depth setting is
too deep.

The other possibility is that you are trying to round over *both* edges
to form a half round. If that is the case, you'll get a slightly
asymetrical shape with the "edge" you refer to. That is because when
you do the second edge the bearing is riding on an area that was cut
when you did the first edge - it is inset slightly. The easy cure is to
use a fence. A less easy one is to add a piece of fiberboard or such on
top and use a top bearing bit running on it.


--
dadiOH
____________________________

dadiOH's dandies v3.06...
....a help file of info about MP3s, recording from
LP/cassette and tips & tricks on this and that.
Get it at http://mysite.verizon.net/xico

In article .com,
wrote:

Whenever I use a round-over bit on my router I end up with a small edge
where the roundover bit ends. I have tried to adjust the router height
so that you can't see this and even though I can get it close it's
always there. I am cutting dozens and dozens of pieces and end up
having to sand each of them after using the router.........a major
hassle!

Does anyone have any suggestions for me?

Thank you!

I get this all the time. You can't rely on eyeballing the bit height.
Simply retract the bit, bit by bit (!?) until the edge disappears.

Remember, if you're not practicing on scrap, you're practicing on your
project. :-)

--
Vince Heuring To email, remove the Vince.

On 30 Dec 2005 18:31:12 -0800, wrote:

Whenever I use a round-over bit on my router I end up with a small edge
where the roundover bit ends. I have tried to adjust the router height
so that you can't see this and even though I can get it close it's
always there. I am cutting dozens and dozens of pieces and end up
having to sand each of them after using the router.........a major
hassle!

Does anyone have any suggestions for me?

1. Your bit might not be sharp ..you ARE routing hard maple! Also,
there are good bits and cheap bits.

2. Some might not agree, but I have occasionally [carefully!] started
from the end, routing in the backward direction for a VERY short
distance, then going to the beginning and routing upto that point.

On Fri, 30 Dec 2005 20:32:23 -0800, David wrote:

wrote:


I have tried adjusting the height dave but can't ever seem to get it to
go away "completely". I am using hard maple so the sanding part is
"hard"!


that's why I think your bearing MIGHT be undersize. see my earlier post
for determining that.

I think he was referrring to a "foldover" where the routing ends, not
a lip along the length of the rout? It would deserve some further
explanation of the problem.

On Sat, 31 Dec 2005 13:27:29 GMT, "dadiOH"
wrote:

Is your roundover bit is actually that and not a bead bit? If so, your
bearing is too small. You can fix that by using a fence. If the "edge"
is on the side of the board rather than the edge your depth setting is
too deep.

The other possibility is that you are trying to round over *both* edges
to form a half round. If that is the case, you'll get a slightly
asymetrical shape with the "edge" you refer to. That is because when
you do the second edge the bearing is riding on an area that was cut
when you did the first edge - it is inset slightly. The easy cure is to
use a fence. A less easy one is to add a piece of fiberboard or such on
top and use a top bearing bit running on it.

If the problem is along the length of the route, and not the end, as I
had assumed, then this is the best explanation, I think.

I had this problem also. I always got this router edge when I attempted
to round over a corner.

I went to rocklers or maybe it was woodcraft and told them the problem I
was having. It's been a while but what I had been sold before was a
beading bit not a round over bit. When I got a round over bit the edge
went away.

wrote:
Whenever I use a round-over bit on my router I end up with a small edge
where the roundover bit ends. I have tried to adjust the router height
so that you can't see this and even though I can get it close it's
always there. I am cutting dozens and dozens of pieces and end up
having to sand each of them after using the router.........a major
hassle!

Does anyone have any suggestions for me?

Thank you!

II

After seeing others' responses I think perhaps I misunderstood your
original question. Sorry. The only other suggestion I might make then
would be that perhaps a slightly thinner workpiece might help. If you
can post a photo or drawing of the problem you'd likely get definitive
answers quickly.

J.

wrote:
Will a dish bit do the same thing as a roundover bit? Sorry John I am
a complete novice! I build fishing lures and wouldn't mind the sanding
but when you have literally hundreds to work with it becomes very
tiring.

I have tried adjusting the height dave but can't ever seem to get it to
go away "completely". I am using hard maple so the sanding part is
"hard"!

I have tried a flat file to sand them, sandpaper, a drum sander on my
drill press, a belt sander, they all work but the amount of time needed
to correct the problem is considerable and it really wears me down
after doing 30 of them.

II

wrote in message
oups.com...
Whenever I use a round-over bit on my router I end up with a small edge
where the roundover bit ends. I have tried to adjust the router height
so that you can't see this and even though I can get it close it's
always there. I am cutting dozens and dozens of pieces and end up
having to sand each of them after using the router.........a major
hassle!

Does anyone have any suggestions for me?

Thank you!
..3

IF you are talking about the top of the bit at the widest part of the cut,
you need to raise the bit so that it does not cut as deep. Yes the round
over will not be complete but minor sanding corrects that. That sanding is
much easier than having to take out a ridge caused by cutting too deep.

If you are talking about the round over near the bottom at the bearing, get
a new and or better bit.

If the 'edge' is at the bearing end of the roundover then the bearing
is slightly undersized.

If it is at the other end the depth adjustment is wrong. Or I suppose
the bit might be incorrectly ground.

In article .com,
wrote:

Does anyone have any suggestions for me?

Yes. Sounds to me that the bearing has worn and is no longer terminating
at the same edge as the cutter. IOW.. the bearing isn't keeping the
cutting radius away from your work-piece adequately.
Put a little filament tape over the bearing (increasing its diameter)
and test at slow speed if you can. The worse thing that will happen that
the piece of tape will fly off, but by that time, you'll have confirmed
my suspicions.

Sometimes there is a little flange washer between the bearing and the
cutter creating a line.

The other possibility, already mentioned by other crew members, is that
you're riding the bearing on a surface which has already been rounded
over, allowing the cutter to go too deep.

BTW.. does that line show up when rounding over a large piece of wood?
Like a piece of 2 x 2?

A great many of the responders didn't seem to not have read the orriginal
post. He said that he had reduced the problem by adjusting the HEIGHT of the
bit. It would appear that the problem is not on the side. The bearing would
not have anything to do with it. The solution is simple. If it is cutting to
deep, back it off.
"Robatoy" wrote in message
...
In article .com,
wrote:

Does anyone have any suggestions for me?

Yes. Sounds to me that the bearing has worn and is no longer terminating
at the same edge as the cutter. IOW.. the bearing isn't keeping the
cutting radius away from your work-piece adequately.
Put a little filament tape over the bearing (increasing its diameter)
and test at slow speed if you can. The worse thing that will happen that
the piece of tape will fly off, but by that time, you'll have confirmed
my suspicions.

Sometimes there is a little flange washer between the bearing and the
cutter creating a line.

The other possibility, already mentioned by other crew members, is that
you're riding the bearing on a surface which has already been rounded
over, allowing the cutter to go too deep.

BTW.. does that line show up when rounding over a large piece of wood?
Like a piece of 2 x 2?