Factors Affecting Arrow Head Accuracy

Additional root causes that can affect arrow head accuracy

TM016_Arrow_Head_Adjustment_on_Saw_image9.jpg

Problem

Arrow head setup on a Stuga Sawing centre (not Autoflow) should be simple - the sawing fences centralise around the profile

...Autoflow and Microline machines have an axis-driven position for the saw blade centralise position, not a mechanical one

Root Cause Table - Saw, Flowline, ZX3/4/5

Root Cause	Symptoms	Checks
Swarf or offcut stuck stopping the centralise getting to position	All arrow heads out by the same amount on one bar Arrow heads out by a long way (>5mm) Mitre cuts lengths also out	Check the side fence reaches the profile when centralising
Z Support not active for profile or incorrectly set leading to profile rolling over in clamps	Arrow head different top to bottom of profile on Z profiles	Check Z support settings
Profile not symmetrical	One profile incorrect, others ok	See TB0395 How To Test T transom Symmetry
Arrow head offsets (fiddle factors) historically set	Some arrow heads correct, others not	Reset all ofsets to zero before starting

en none 0

Draft