Rod-making. 



211 



Fig. 5T. 



Treat each strip thus in turn, when you should have 

 the result shown by this cross-section, the letters still 

 indicating the same parts. The angle at d 

 should be a true right angle, to be tested by 

 your square. This would be easily obtained 

 were the rind side, a (which you must by no 

 means touch with the plane), flat instead of 

 rounding. If much out, you must true this an- 

 gle up by drawing it through a V- shaped scraping notch 

 filed in one of your steel scraps. Not only must this be 

 a right angle, but the apex must coincide with the mid- 

 dle of the strip not thus, in which the angle, 

 d, is clearly off to one side, as shown by the 

 lack of equality in the sides, bb. This will 

 probably bother you more than the other, but 

 your scraping notch will easily rectify this. 

 It was to allow for this scraping that the taper was but 

 approximated to, rather than completed, when planing 

 the edges of the strip. 



Now number the strips with a lead-pencil on the rind 

 sides, in the order you intend them to go. Then place 

 two adjacent strips together 

 in the groove, thus : a a be- 

 ing the rind as before that 

 is, with the rind side of each 

 strip in contact with the 

 sides of the groove. It may 

 be said once for all, that this 

 is always and invariably to 

 be the position of the rind 

 side when applying the plane 

 to the strips. 



Now pass your plane over pig. SB. 



