Rafter kaba ai hte angle ni hpe sawn la ai
Ra ai shadawn shadang ni hpe madun dan rit Milimeter hku nna
X - nta dam ai
Y - nta ntsa tsaw ai
C - n-gun kaba ai
Z - board a jut kaw nna htu hpang ai shara du hkra tsan ai
B - Rafter dam ai
lakap laika
Rafter n lawm yang, nta ntsa hpe n mai gawgap ai.
Gable nta ntsa npawt nhpang hte, npawt nhpang npawt nhpang ni a shadawn shadang, cut angles hte grooves ni hpe sawn la ra ai.
Ndai lam a matu rafter jahpan galaw ai program hpe galaw da ai.
Nta a galu kaba ai hpe madung tawn nna, nta ntsa npawt kaw nna npawt nhpang du hkra tsaw ai hte ntsa kaw na npawt nhpang galu kaba ai, npawt nhpang galu kaba ai hte hka htung du hkra tsan ai hpe sawn la ai.
Ndai lamang hta, nlung npawt ni hpe dimension ni lawm ai sumla hpe mung ka na re. Ndai lam gaw, tinang a lata hte shingnip shingna galaw na matu dawdan ai ni a matu grau nna akyu rawng na re.