Domino depth of cut

[1toolshort]

In recent months, my depth of cut has been off by 5-6 MM...too shallow.  I installed trim yesterday and had to  install 6' 1X4 around a square window.  I needed to use 5mm dominos on those joints.  They were  all too long.  This has been the case for a year now,....I've had this domino for 12-13 years and it's worked perfectly.  Has anyone else had this issue?..Ive checked all dimensions on each stop.  Could there be a spring that is broken??  I cleaned out all openings...any thoughts/??  What am I missing???

 

[PeterJJames13]

My guess is a broken bit tip. Have you tried replacing the cutter?

 

[1toolshort]

Very prescient.  That's exactly what it was.  I use it a lot when building cabinets.  At some point I hit a screw.  Good catch!!!it was my 5mm bit.

 

[PeterJJames13]

Awesome - that's an easy enough fix to get you back working again!

 

[Cheese]

Many people on the FOG keep a spare 4 mm & 5 mm bit in their DF 500 Systainer because these bits can be easily damaged. I’m one of those people.

 

[Gregor]

Very prescient.  That's exactly what it was.  I use it a lot when building cabinets.  At some point I hit a screw.  Good catch!!!it was my 5mm bit.

Interesting that you didn't notice that snug mortises were all way too narrow, which is the usual error that comes up when a domino cutter is shorter than it is intended to be...