To　address　the　issue　of　low　accuracy　of　directed　energy　deposition-arc　(DED-Arc)　and　expand　its　use　in　producing　large-sized　components,　a　novel　concept　called　＂in-order　stacking　of　primitives＂　has　been　proposed.　This　concept　aims　to　simplify　the　additive　manufacturing　(AM)　planning　process　and　improve　forming　accuracy.　Experiments　at　the　weld,　layer,　and　block　levels　examined　relationships　between　process　parameters　and　primitive　dimensions,　offset　distance,　and　interlayer　lift　height.　Increasing　heat　and　mass　transfer　significantly　increased　primitive　width　and　surface　roughness　but　had　little　effect　on　height　variation　(1.95-2.27　mm).　The　impact　of　offset　distance　on　the　forming　precision　for　layer-level　components　varied　by　the　stacking　path　used,　with　Zig-Zig　level　parts　showing　more　deterioration　than　Zig-Zag　level　parts.　Thermal　equilibrium　in　block　components　was　achieved　within　a　critical　height　range　of　88.2　to　112.0　mm.　The　stacking　path　has　a　substantial　impact　on　the　surface　temperature　and　is　a　crucial　factor　for　ensure　accurate　workpiece　formation.　This　study　establishes　a　physical　relationship　between　component　forming　quality　and　process　parameters　through　mathematical　expressions　that　are　supported　by　experimental　results.　Future　research　will　focus　on　optimizing　the　physical　model　and　refining　the　mathematical　expressions.　[GRAPHICS]