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FESTOOL DISCUSSIONS => Festool How To... => Topic started by: Crazyraceguy on April 10, 2022, 08:46 AM

Title: MFK700 follower wheel alternative
Post by: Crazyraceguy on April 10, 2022, 08:46 AM
In a few recent posts I have shown pics of an odd challenge for a laminate trimmer.
Flush-cutting when the adjacent face is not square to the edge you need to trim is a bit of a challenge. With the horizontal base installed, the "copy wheel" (Festool's word) keeps the machine registered against the edge, but it can't do that if the edge is not square. It can overcome a slight angle, but not much before it starts to feel sketchy.
I developed an alternative to the wheel. A simple block of wood, ply in this case, will work as a registration point that matches up to whatever angle you need. I machined it to have a tenon that fits into the same groove as the original wheel, on the factory bracket. That gives it some depth adjustment too. I only took one pic after putting it on and testing. Since it worked out, I removed it and cleaned it up (rounded the exposed edges). It doesn't have to be fancy, it will probably never be used again.
While I had the router table set-up to cut the tenon, I made a few extra blanks, so I can be ready for the next time something like this comes up.
I have had cases where the copy wheel was too far away from the bit, where the edge was too thin to register against. Something like this, with a 90 degree face, would have worked. Wish I had thought of it then.
Title: Re: MFK700 follower wheel alternative
Post by: afish on April 22, 2022, 11:39 PM
you sure do love that little mfk. Im more interested on how the wood was bent around the curve on an angle.
Title: Re: MFK700 follower wheel alternative
Post by: Crazyraceguy on April 23, 2022, 07:56 AM
You must have missed the post called "non standard use for tracksaw"
I did it by cutting out the correctly shaped arcs with a CNC, but it could be done by hand with a trammel and a router. Then I kerf-cut those arcs with the TS55 and a jig that is basically a trammel.
After the kerf cuts, the same jig base is used with a tilt-base router to cut the bevels.
The stops that hold the pieces in place are attached with Dominos, so they can be moved. There are two different arcs in this project. The same jig accommodates both.
Title: Re: MFK700 follower wheel alternative
Post by: afish on April 23, 2022, 08:13 AM
yes I did, I was gone for a bit. 
Title: Re: MFK700 follower wheel alternative
Post by: Crazyraceguy on April 23, 2022, 02:37 PM
I guess I could have explained it better, even in that post.
It comes apart for storage with two Dominos and a Lamello Zeta Tenso. It has movable cleats to register the panels and two pivot points for the different arc shapes. The pivot part allows for clamping the rail to the side of it, which puts the cutline on center.