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

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

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

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

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

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

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

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

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

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

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