MK IV. Biggest improvement yet. Bigger is better.
OK, first time I saw a shooting board, they were using a #4. I then see most use a #5. I found it uncomfortable and "tippy". Bedrock a little less so. I then did my handle and larger side plate iterations. Workable. I have a totally different approach now. Go big. #7. Taller cheek so not as tippy and the additional mass makes a huge difference for me. Being larger, it is not as uncomfortable in my hand, but a little short hot-dog may make it perfect.
I suspect those who have shelled out for a L-N or W-R #5 have the mass, but as I "suffer" with a mere original Bedrock, the big honking #7 does the job.
So, building new boards. The 45 in the photo works. Need to build a strait and a 45 tilted for small box miters. I have an idea with a fine thread bolt for precision alignment.
So,
I was testing what the limitations of the various trimming methods I have.
Bench Hook: Crude and quick. Needs trimming, but can cut any angle on about any stock. Compound angles, partial cuts.
Bench chisel: Can do anything with enough skill. About the only trimming method for partial cuts, like most joinery.
Powered Miter saw: Can flex a little, can chip out a little. Replaceable ZCR will help it. Can trim a 32nd OK, but not much less due to flex. Small parts way to dangerous without clamping and even then can get away from you. Full depth cuts only. ( mine is not a slider) Well, it is a carpentry tool after all.
Lyon trimmer: Clever geometry. Dead on if cutting to the line with 1/16 or so being trimmed. Blade geometry keeps the blade against the ways. Less than that, the blade will curve away from the cut in the ways. Any angle from 40 to 90. I was thinking about adding about 5 Lbs to the handle end for some more momentum when trimming larger and harder pieces. I am sure the big brothers used in the picture frame industry have more precise hardened ways and not the slop in my clone Grizzly trimmer.
JointMaster: If clamped, can cut dead on with almost no tear-out. Excels on tiny parts but may still need cleanup. Still looks like the tool for rough cutting Komiko.
Table saw sled: Not too bad. Better for larger. Fine for kitchen cabinets, but not for Komiko or picture frame precision. Need cleanup. A lot of time spent adjusting and clamping is needed. Can do some partial cuts.
Shooting Board: The only method that can trim a ( forum discouraged standard precise measurement term). One more time, the 200 year old method works the best. In the same category are the dedicated angle mini shooting blocks used for Komiko. May have to go there if I use a non-45 degree pattern for the screen I have in mind.