Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

Projection of planes 009

270 views

Published on

  • Be the first to comment

  • Be the first to like this

Projection of planes 009

  1. 1. Problem 6: A rhombus of diagonals 40 mm c’ c’1 and 70 mm long respectively has one end of it’s longer diagonal in HP while that d’ b’1 b’ d’1 diagonal is 350 inclined to HP. If the top- b’d’ c’ view of the same diagonal makes 400 X a’ 450 a’1 Y inclination with VP, draw it’s projections. a’ a1 30º d1 d d1 a c a c1Read problem and answer following questions b1 1 c11. Surface inclined to which plane? ------- HP b b12. Assumption for initial position? ------ // to HP3. So which view will show True shape? --- TV The difference in these two problems is in step 3 only. In problem no.6 inclination of Tv of that diagonal is4. Which diagonal horizontal? ---------- Longer given,It could be drawn directly as shown in 3rd step. Hence begin with TV,draw rhombus below While in no.7 angle of diagonal itself I.e. it’s TL, is X-Y line, taking longer diagonal // to X-Y given. Hence here angle of TL is taken,locus of c1 Is drawn and then LTV I.e. a1 c1 is marked and final TV was completed.Study illustration carefully. Problem 7: A rhombus of diagonals 40 mm and 70 mm long respectively having c’ c’1 one end of it’s longer diagonal in HP while d’ b’1 that diagonal is 350 inclined to HP and b’ d’1 makes 400 inclination with VP. Draw it’s b’d’ X a’ c’ a’ 450 a’ Y projections. 300 1 d d1 Note the difference in a c a c1 construction of 3rd step 1 c2 b b1 in both solutions.

×