1. TRUE MITRE ANGLE in RAKING MOULDS by Greg Cheetham Original square mould along side

2. Enlarged for clarity Plan view of mitre Bottom or obtuse mitre angle development

3. Enlarged for clarity Use a compass to “drop” the corner to the horizontal position so you can view the mitre line at 90 0 Enlarged for clarity Bottom or obtuse mitre angle development

4. Enlarged for clarity New point on the horizontal plane Enlarged for clarity Bottom or obtuse mitre angle development

5. Enlarged for clarity Project line up to intersect with width line of side mould Enlarged for clarity Bottom or obtuse mitre angle development

6. Draw in the new true mitre angle (dotted blue line) Enlarged for clarity Set a sliding bevel to this angle and mark the top edge bevel for the bottom or obtuse mould Bottom or obtuse mitre angle development

7. Plan view of mitre Create a plan view of the mitre joint Top or acute mitre angle development Enlarged for clarity

8. Draw in the horizontal planes Enlarged for clarity Plan view of mitre Top or acute mitre angle development

9. Use a compass to “raise” the corner to the horizontal position so you can view the” true” mitre line at 90 0 Top or acute mitre angle development

10. Project line up to intersect with width line of side mould Top or acute mitre angle development

11. Draw in the true mitre angle. Set a sliding bevel to this angle for marking out the top edge mitre angle on the top or acute mould Top or acute mitre angle development