Cutting down bottom of cupboard doors

[purpleroad]

Cutting the bottom of cupboard off 5mm. On the left of pixs I the wood underneath clamped to door being cut is wider and found it difficult to get circular saw in with clamp etc. I used a spirit level as the straight edge but it was bending when clamped. I guess this isn't good so then used a baton. I found with the baton the cut wasn't even all the way along. What us best for a straight edge?

The screws in hinge had paint in them so hit a hammer into the grooves. Is this the best way to get a good grip in the groove?

 

[big-all]

first thing
you are overclamping
second thing clamp with the solo clamp quite firmly but dont overtighten
then g clamp on the edge off the work but quite lightly if gentle pressure wont push the baton off line its fine
only clamp the baton to the door nothing else
you can overhang enough to get the clamp and strait edge off your bench and on the door edge as long as you support the door by another clamp /person/heavy weight /non slip mat if it requires it

 

[foxhole]

Small amounts should be removed with a plane.

 

[purpleroad]

first thing
you are overclamping
second thing clamp with the solo clamp quite firmly but dont overtighten
then g clamp on the edge off the work but quite lightly if gentle pressure wont push the baton off line its fine
only clamp the baton to the door nothing else
you can overhang enough to get the clamp and strait edge off your bench and on the door edge as long as you support the door by another clamp /person/heavy weight /non slip mat if it requires it

I thought it would be good to clamp wood underneath so u don't get splinters on the door?

 

[big-all]

score along the cut line with a stanley/craft knife to avoid splintering
you can clamp a 3-6mm thick bit off sheet material on the top
also no more than 2mm/3teeth showing when the blade comes through[door thickness plus 2mm]