Tus saw derived nws lub npe ntawm nws siv hauv kev txiav cov tenons rau mortise thiab tenon joinery. Tenon saws feem ntau muaj cov hniav rip-filed rau rip txiav thiab hlais txiav hla cov nplej. Cov hniav kuj zoo, nrog 13 cov hniav ib nti yog qhov loj me rau cov saw.
Yuav ua li cas txiav hlau?
Feem ntau, lub nraub qaum yog ib txhais tes nrog lub tiaj tiaj tiaj uas muaj lub nraub qaum rov qab uas ua kom cov hniav nyob ncaj thaum txiav. Cov hniav feem ntau yog ntawm qib high-qib steel, tuav ntawm ntoo (los yog, qee zaus, yas), thiab tom qab ntawm hlau lossis tooj dag. Feem ntau cov backsaws muaj cov hniav hlais.
Thaum twg lub backsaw tau tsim?
Yog li, thaum twg thawj qhov rov qab tshwm sim? (sib nrug los ntawm cov neeg Loos): Tsuas yog cov pov thawj nyuaj hauv daim ntawv ntawm cov saws tiag tiag, yog los ntawm xyoo 1750tab sis peb muaj cov lus piav qhia ntawm tenon pom los ntawm 1736 (Richard Neve), uas Tej zaum yog me ntsis tsis meej meej dua li Moxon's 1680 siv.
Puas yog ib lo lus rov qab?
A backsaw yog txhua tes saw uas muaj qhov tawv nqaij ntawm ntug ntawm ntug txiav, tso cai rau kev tswj tau zoo dua thiab txiav ntau dua li nrog lwm hom saws. Backsaws feem ntau yog siv hauv kev ua haujlwm ntoo rau kev ua haujlwm zoo, xws li txiav dovetails, mitres, lossis tenons hauv txee thiab joinery.
Qhov txawv ntawm tenon saw thiab dovetail saw yog dab tsi?
Piv rau dovetail saw, tenon saw muaj ibsiab dua, hnyav dua los ua 1- lossis 2-nti tob txiav uas xav tau rau kev sib koom tes. Cov hniav ntawm lub tenon saw yog hauv av los ua ib tug crosscut los yog ib tug rip cut.
