Major manufactures of hand saws have been making “Plunge Saws” typically used to fit kitchens, however these have been very expensive £600+
The key component is the rail that guarantee a straight cut.
So the same manufactures are fitting comparable base plates to ordinary saws.
I am sure the price will come down in time but I wanted one now and became an early adopter. Also I was in the market for a replacement saw.
The saw is a good armature specification saw. £170 here in the UK
The rail however is still pricey I think as its just an extrusion at £60. These are my UK numbers, yours may differ (ie. 110V)
DEWDWE576K - Precision Circular Saw 190mm & track Base 240v
DEWDWS5022 - Plunge Saw Guide Rail - 1.5m
Other manufactures are available.
My story
To make my laminated curves I need a lot of 1/8” ply strips. This pile is 100 of the 500 I need
The cut could not be better as the extrusion has a rubber anti-splinter strip in it.