Aralin 1Intermediate checks sa bawat hakbang: pagsusukat ng timbang, balanse, straightness, at visual inspection pointsDito ay magtatag ka ng routine ng intermediate checks sa bawat yugto. Susukatin mo ang timbang, balanse, straightness, at stiffness, magre-record ng mga value, at gagamitin ang visual inspection points upang maagang mahuli ang mga problema bago maging irreversible.
Setting up a measurement checklistWeighing stick, frog, and assembled bowBalance point measurement and adjustmentStraightness checks against reference edgesRecording data and interpreting deviationsAralin 2Pag-drill at pag-fit ng hardware: screw channel, eyelet installation, alignment checks; tools: drills, reamers, tapping toolsAng seksyong ito ay tumutakip sa pag-drill ng screw channel, pag-fit ng eyelets, at pag-align ng hardware upang ang frog ay mag-travel nang smooth. Matututo ka ng tool selection, drilling sequences, tapping techniques, at kung paano i-correct ang minor alignment errors nang safe.
Layout of screw channel centerlinePilot drilling and step drilling strategyTapping threads and lubricants usedEyelet fitting, depth, and thread engagementAlignment checks and minor correctionsAralin 3Paghubog at tapering ng stick: longitudinal at transverse planing, spokeshaves, scrapers, filing; critical checks: cross-section profiles, straightness, symmetryAng seksyong ito ay tumutakip sa paghubog at tapering ng stick gamit ang planes, spokeshaves, at scrapers. Magtatag ka ng longitudinal at transverse tapers, i-refine ang cross-sections, at panatilihin ang straightness at symmetry sa pamamagitan ng frequent controlled checks.
Marking reference lines and tapersLongitudinal planing sequence and passesTransverse shaping and octagonal facetsScraping, filing, and surface refinementStraightness and symmetry verificationAralin 4Pagpili at paghahanda ng kahoy: visual at acoustic inspection, pagsusukat ng moisture content, rough cutting at seasoning considerations; tools: saws, planes, calipersMatututo kung paano pumili, mag-test, at maghanda ng bow wood, na nakatuon sa grain, density, at acoustic response. Susukatin mo ang moisture, rough cut billets, at magplano ng seasoning strategies habang gumagamit ng saws, planes, at calipers nang safe at accurate.
Visual grain, runout, and defect assessmentBasic acoustic tap testing and density checksMoisture content measurement and target rangesRough cutting billets and orienting the stickSeasoning schedules and storage conditionsAralin 5Tip making at head details: carving tip, tip plate fitting, rolling at finishing ng head profile; tools: knives, needle files, chiselsAng seksyong ito ay nagpapaliwanag ng paghubog ng bow head, pag-fit ng tip plate, at pag-refine ng profile. Magca-carve ka ng tip, mag-inlay at flush ng plate, mag-roll ng head contours, at mag-finish ng surfaces gamit ang knives, chisels, at needle files nang safe.
Rough carving the head and tip outlineCutting and fitting the tip plate bedGluing and flushing the tip plate edgesRolling head profile and chamfer transitionsFinal head surface cleanup and detailingAralin 6Frog fabrication at fitting: cutting, mortising, dovetailing, slide shaping at eyelet seating; tools: chisels, files, lathes, gaugesMatututo na mag-fabricate at mag-fit ng frog, kabilang ang pag-cutting sa size, mortising, dovetailing, paghubog ng slide, at pag-seat ng eyelet. Bigyang-diin ang tool control, reference surfaces, at precise clearances para sa smooth, rattle-free operation.
Squaring frog block and layout linesCutting mortises for hair and screwForming dovetail and slide channelShaping and fitting the slide and linerEyelet seating, clearance, and travelAralin 7Finishing at polishing: shellac/application methods, rubbing at buffing, surface protectionMatututo ng finishing strategies gamit ang shellac at compatible coatings. Maghahanda ka ng surfaces, mag-aaplay ng thin, even layers, mag-rub out sa pagitan ng coats, at mag-buff sa controlled sheen habang pinoprotektahan ang pakiramdam, proteksyon, at visual clarity.
Surface preparation and pore fillingShellac mixing and application methodsDrying times and rub-out techniquesBuffing tools and controlled sheen levelsTouch-ups and long-term surface careAralin 8Hairing procedure at securing ng hair: selection, bundling, glueing sa mortises, adjuster setup; tools: clamp blocks, staple techniques, glue applicationPag-aralan ang kumpletong hairing sequence, mula sa pagpili at sorting ng hair hanggang bundling, tying, gluing sa mortises, at pag-set ng adjuster. Bigyang-diin ang tension balance, clean work, at secure anchoring gamit ang clamps at glue control.
Selecting, sorting, and aligning bow hairForming bundles and tying end knotsPreparing mortises and glue applicationClamping, drying, and trimming hair endsAdjuster setup and tension equalizationAralin 9Cambering (heat at bending) at stabilization: heat sources, bending forms, pagsusukat ng camber at residual stresses; tools: bending iron, clamps, radius gaugesGalugarin ang cambering gamit ang controlled heat at bending forms. Matututo ng safe heating methods, bending sequences, pagsusukat ng camber curves, at pag-stabilize ng stick habang nagmo-monitor ng twist, springback, at residual stresses.
Selecting heat source and safety setupHeating zones and bending orderUsing bending forms and clamping pointsMeasuring camber curve and reference arcsCooling, stabilization, and springback checksAralin 10Winding, grip at final shaping: wire winding techniques, thumb leather o grip application, final sanding at finishing; tools: winding mandrel, pliers, burnishersAng seksyong ito ay nagdedetalye ng winding, grip installation, at final shaping. Magpe-practice ka ng wire o silk winding, mag-fit ng thumb leather o synthetic grips, i-refine ang handle profile, at mag-burnish ng surfaces habang pinoprotektahan ang previous work.
Planning winding length and terminationWire and silk winding techniquesThumb leather cutting and gluing stepsHandle shaping and ergonomic refinementBurnishing and protecting adjacent areas
