I use insulboard (foamboard) as a backer when I cut plywood panels with a circular saw. Has anyone tried it as a backer for M4?
No hurry as a I just finished unboxing and started assembly!
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Mike Clancy wrote:
I use insulboard (foamboard) as a backer when I cut plywood panels with a
circular saw. Has anyone tried it as a backer for M4?
people did it for earlier versions of the maslow. It works.
David Lang
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Finally got to testing and discovered a couple of issues with using insulboard on a horizontal installation:
- The insulboard slides way too easy on a concrete floor. I solved this for my initial test with some spray adhesive (77) but that’s definitely suboptimal.
- The target object slides way too easily on the insulboard. I attempted to address it with some heavy duty woodworkers’ double sided tape but that turned out to be insufficient. In the end I held it down with an 8 gallon water container just for this test and was able to successfully finish the job.
Bottom line: I wouldn’t recommend it
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