How would I completely roundover an edge of 3/4" MDF?

Discussion in 'Archived Threads 2001-2004' started by jeff lam, Jan 8, 2002.

  1. jeff lam

    jeff lam Screenwriter

    Joined:
    Jun 4, 2001
    Messages:
    1,798
    Likes Received:
    0
    Trophy Points:
    0
    Location:
    San Jose, CA
    Real Name:
    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

    IIIIII

    IIIIII =Tube

    IIIIII

    IIIIII

    IIIIII

    IIIIIID
     
  2. Travis G

    Travis G Stunt Coordinator

    Joined:
    Jan 6, 2002
    Messages:
    94
    Likes Received:
    0
    Trophy Points:
    0
    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.
     
  3. charles_w

    charles_w Stunt Coordinator

    Joined:
    May 11, 2001
    Messages:
    111
    Likes Received:
    0
    Trophy Points:
    0
    Jeff,

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

    and do one side at a time.
     
  4. Eric Kahn

    Eric Kahn Guest

    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
     
  5. Brian Bunge

    Brian Bunge Producer

    Joined:
    Sep 11, 2000
    Messages:
    3,716
    Likes Received:
    0
    Trophy Points:
    0
  6. jeff lam

    jeff lam Screenwriter

    Joined:
    Jun 4, 2001
    Messages:
    1,798
    Likes Received:
    0
    Trophy Points:
    0
    Location:
    San Jose, CA
    Real Name:
    Jeff Lam
    Brian,

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

    Brian Bunge Producer

    Joined:
    Sep 11, 2000
    Messages:
    3,716
    Likes Received:
    0
    Trophy Points:
    0
    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
     
  8. Hank Frankenberg

    Hank Frankenberg Cinematographer

    Joined:
    Oct 13, 1998
    Messages:
    2,573
    Likes Received:
    0
    Trophy Points:
    0
    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
     

Share This Page