I am wondering about the acceptable thickness of the plywood of the end frame (Paul recommends 1/2″). My only plough plane is a record 43, which widest blade is 1/4″.
Is it possible to use 1/4″ plywood for the end frame or it would be too fragile?
– is it possible to make a wider groove with 2 passes of the plough plane?
– would 1/4″ plywood be enough if I divide the panel in 2 with a vertical rail to increase the rigidity?
Thanks in advance for any help!
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