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26th March 2009, 01:30 PM #1SENIOR MEMBER
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Positioning router on insert, installing insert
I'm slowly, very slowly, making myself a router table.
I have made the tabletop, I have the hole for the insert and the insert fits almost perfectly level.
The insert came without any instructions, so I've been relying on google and magazines. Not only are there no instructins, but the manufacturer doesn't wish to be identified, there's no brand name on it. I bought it from Timbercon.
There are four grub screws which I expect are for leveling the insert. There are also four rare-earth magnets. My high school physics suggests those are not going to hold onto anything, except maybe the grub screws.
The insert is not predrilled for any router.
The router is the big Triton. Additional the the plasic subbase, it has a steel plate with can be inserted between the subbase of the router and its base. The steel plate is good for holding templates.
I know how to drill holes in the correct place in the insert to I can screw it onto the router. What I do not know is this:
1. How does one centre the router on the insert?
1a. Does it matter if it's not centred accurately?
The other matter that has me puzzled is
2. How does on attach the insert to the table? Does it just sit there, on the levling screws?
2a. What role do the four magnets play?
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26th March 2009, 04:36 PM #2Deceased
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You can make a little centering tool if you have a holesaw.
Using the holesaw to make a circle with the outside diam. the same as the inside diam of the plate's opening. Glue a small dowell into the centre hole of the circle you have made and then insert this little jig into your router and into the hole of your plate.
You are now ready to mark out your holes from the router base into the plate.
I have one that came with my Triton router table to suit both 1/2" and 1/4 "
It is better to centre it especially if you use larger router bits. The plate just sits into the opening of your table, the magnets are there for if you use a metal router table. I would suggest that you screw a few washers onto your router table ( if it's not a metal table), recessed into the opening that you have made, so that the magnets can be used.
Peter.
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26th March 2009, 07:14 PM #3SENIOR MEMBER
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Thanks Peter
I don't have a holesaw, but it's food for thought. I'm going to woodwork class tonight, I'll take the insert and something to make a circle out of.
Those magnets will hold well enough? There are some more holes near the perimeter, I could make a cleat or bracket to screw into to hold the insert.
--
John
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26th March 2009, 07:37 PM #4
I'd approach it like this:
- place the insert on a 6mm(ish) ply/MDF offcut and trace around it, inside and out.
- remove the insert and put it aside
- using a ruler, mark the diagonals on the ply to find the centre. Or use a compass set to the radius of the hole and scribe a few arcs on the marked circle; the centre will be where the arcs intersect.
- fit a small fluted bit to your router
- using a drill of the same size as the fluted bit, drill the marked centre of the MDF as accurately as possible.
- position the router on the MDF, and lock it in the plunged down position, so that the flute sits neatly inside the hole.
- orient the router the way you want it to sit in the insert, then mark around it on the MDF and also use an awl to scribe the mounting holes as accurately as possible.
- remove the router and carefully cut out & drill the MDF.
- test fit it to the router & in the table.
- redo all the above, along with any desired adjustments, until/unless you have it spot on. Ply/MDF is way cheaper than another insert, and you may wish to alter the way the router sits to make for easier access to adjusters, switch, etc. once inside the cabinet.
- finally, align & clamp the MDF template to the insert and xfer measurements.
1a. Does it matter if it's not centred accurately?
2. How does on attach the insert to the table? Does it just sit there, on the levling screws?
2a. What role do the four magnets play?
Edit: just read Sturdee's reply. I think I prefer my idea.
- Andy Mc
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26th March 2009, 09:20 PM #5Awaiting Email Confirmation
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The magnets do go under the leveling screws, the other holes on the outer perimeter are to hold the the insert to the table i.e level then nip tight and again if is settles a bit. I used epoxy ribbon to hold the magnets in mine and nylocks on the screws that hold the insert.
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