How would I completely roundover an edge of 3/4" MDF? (1 Viewer)

[jeff lam]

Is there a router bit that can roundover the entire edge of 3/4" MDF or other wood? I will be building endcap covers (that hang over the tube slightly with a roundover edge) for a sonosub soon and am wondering if I can do this. I'll try to draw what I'm looking for below:

IIIIIID "D" being the roundover edge

IIIIII

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IIIIII =Tube

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IIIIIID

 

[Travis G]

Jeff if I understand what your saying you want a lip to go over the edge of the sonotube. If this is the case I don't know how you will get the endcaps into place. I had to round off the edges of my endcaps when I pounded them in and it was still a bugger of a job. I guess you could cut them so they fit in kind of loosley so long as you thoroughly sealed it with some silicon caulk.

Nevermind I understand.

 

[charles_w]

Jeff,

If you have a circle jig you can use a 3/8" roundover

and do one side at a time.

 

[Eric Kahn]

there are 3/4 roundover router bits availible, you just need to find the store that has one, you would want one with a pilot bearing and then screw the piece you want to round over to another piece that has been cut out as a guide plate for the pilot bearing

or use a circle attachment on the router

 

[Brian Bunge]

Jeff,
Are you looking for something like this?
http://www.routerbits.com/cgi-router...498621_8767+91
It will do both edges at the same time.
Brian

 

[jeff lam]

Brian,

That seems to be it! Is that bit adjustable to any size radius you want? Those are very expensive though. WOW!

 

[Brian Bunge]

Jeff,
No you'd have to go with whatever the largest radius is. In this case, that's 1/4". But that's probably as large as you could go with a 3/4" thick material. My Dad used to build a lot of furniture out of pine and would often use a router to round over both sides of the material. He'd just do one edge, then flip it over and do the other. I think he was using a regular 1/4" radius bit. This would be a cheaper way to go. The standard roundover bits (1/4" shank) are less than half the price.
http://www.routerbits.com/cgi-router...498621_8767+28
Brian

 

[Hank Frankenberg]

Here's your answer. They're called Bull Nose bits. BTW, this is my favorite router bit source. In a woodworking magazine test, one of their bits came out on top, beating even the high-end coated bits from the likes of Jesada. Also, MLCS sells my favorite specialty clamp, the Merle band clamp.
http://www.mlcswoodworking.com/shops...aring%20Anchor