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Private member DiscussionAcoustic Repair

Splines: When are they necessary?

Question about splines: At what point are they necessary? My question is primarily regarding the crack to the left between the bridge and the sound hole as well as the crack at the upper bout that runs along the fingerboard extension. I have already glued them both and used the TJ cleats that run the full length of the cracks. I have already splined the lower bout crack that runs from the bridge to the binding as it was super gappy and d…

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Ian Davlin
Answered in Council of Elders — July 2026: When are splines necessary? (36:01) Cleat or splint — the water dry-run test (37:04) Revising the estimate (44:10) The dip near the bridge (46:48)