Sharpening
How to sharpen a chainsaw chain
A dull chain makes dust instead of chips and pulls the saw sideways. This routine keeps every cutter at the same angle without taking the chain off the bar.
Drilling clean 35mm hinge cups
Concealed hinges only close flush when every cup sits at the same distance from the door edge. A jig turns that distance into a fixed stop.
By The Tenvik team1 min read
1. Lay out the hinge positions
Mark the hinge centres on the back of the door, usually a few inches in from the top and bottom. Use the same marks on every door in a run so the hinges line up.
2. Set the edge distance once
Check the edge distance your hinge maker specifies and set the jig stop to it. Clamp the jig to the door edge so it cannot creep while you drill.
Test on scrap first. Drill one cup in an offcut of the same thickness and mount a hinge before you touch a finished door.
3. Drill to depth
Use a sharp Forstner bit and a depth collar. Let the bit cut at a steady speed and back out often to clear chips so the cup bottom stays flat.
- Keep the drill square to the face of the door.
- Stop at the collar; a cup that is too deep weakens the door.
- Brush out chips before you seat the hinge.