DIY Doctor

box joints

Postby greengrass » Mon Jul 27, 2020 10:59 pm

I have made a box joint jig for my router table and it seems ok except 'Tear out'. Cutting slots when i pull jig back ready for each cut I get tear out of surface layer of the ply (1/2" ply with 3/8" straight router bit. Cutting the
last slot of 5 caused loss complete of the pin next to it.
Tried some scrap 1.5 x 1/4" pine batten and that was splinter tear(hanging on) both sides. Would post pic but can't seem to resize. It's a new cutter from set of four were cheap, or is it wrong type of straight cutter
greengrass
Rank: Foreman
Progress to next rank:
27%
Posts: 281
Joined: Wed Mar 14, 2007 7:27 pm


Sponsor

Gorilla Glue heavy duty grab adhesive

Postby stoneyboy » Tue Jul 28, 2020 10:37 pm

Hi greengrass
My best guess is that your cutters are blunt even though they are new.
You should be using wc tipped straight flute cutters.
Regards S
stoneyboy
Rank: Project Manager
Posts: 3362
Joined: Wed Dec 10, 2008 6:44 pm



Display posts from previous
Sort by
Order by



  • DIY How to Project Guides
  • DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!


 
  • Related Topics