Serre-Joints en Bois à Angle Variable

oui, tu peux trouver des kits avec la quincaillerie, notamment sur finetools. La différence de prix n'est pas si grande. J'étais intéressé par l'usage en fabrication de mortaise.

Atelier Eustache là je ne cerne pas trop l'intérêt puisque la presse est elle-même bridée par le valet d'établi qui pourrait directement brider la pièce à travailler...

Ok, j'ai la réponse dans son bouquin "Jigs & Fixtures"

Mortising Hand Screw
Cutting mortises by hand with sash mortise
chisels or registered mortise chisels near the
ends of narrow workpieces – such as at the ends
of stiles – often runs the risk of splitting the
wood sideways, even if you take care only to
drive the chisel perfectly vertically. While this
danger can be minimized by first boring most
of the waste away with a bit slightly smaller
than the width of the desired mortise, the dan-
ger can be effectively eliminated by clamping
the mortise end with a hand screw, itself held
to the bench by a hold-fast or another clamp.
If the workpiece is taller than the jaws of the
hand screw are wide, add extra scrap pieces that
match the width of the workpiece between it
and the hand screw jaws. A further advantage
of this method is that clamping the hand screw
flat against the bench top holds the workpiece
perfectly vertical. It is one more way to mini-
mize splitting the mortise and at the same time
guarantee a properly aligned joint (FIGURE 103).