Router chipout

Sambostar

So I made a jig Saturday like this one, after routing a groove and a slide in my router table.

https://www.youtube.com/watch?v=_DzAAXzTYAE

Problem is, I haven't got a spiral cut bit, just a normal double bladed bit and it chips out to buggery.  I tried using a clamp and two pieces of scrap and the chip out is less, but still bad as the base of the finger joint. 

 I think normal router bits are only good for plunge routing and template chasing, but I'm not about to spend £100+ on a CNC bit so I can make nine finger jointed drawers in a quarter of an hour. 

Any suggestions from experience? 

Andyjr1515

@WezV is probably better than me to answer, but are you making sure you are always routing 'downhill' relative to the direction of the grain?

nutbox

Have you got the router place so the bits spinning in the right direction , would that cause brake out

Sambostar

I'm routing both sides of the end grain on edge, ie, the width of the wood with the wood pointing straight up in the air.  I might try routing against the motion of the bit so it's dragging, rather than wanting to bite it apart, except that is impossible as whichever side you feed it, it will bite the same.  Maybe use a smaller bit and thinner wood.  Finger joints are OK for a Teacrate or wine holder, but need a lot of filler, so no good for drawers.