Checklist for using the Bridge City JMP2 to cut “through” dovetails

Dec 14

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I have compiled the checklist below to make it easier for me to remember how to set up and cut through dovetails on the Bridge City JMP2.   The Bridge City YouTube video on this process helps (embedded below),

….but it is quicker for me to just look at the list below to refresh my memory without watching the video…I guess I am more of a checklist person than a video person….old school.

The checklist is written by me for me, so some of my shorthand and notes may not be so self-explanatory.  Use at your own risk.

Checklist for using the Bridge City JMP2 to cut “through” dovetails

Process checklist (version 11/25/2011)

  1. Cut tails first
  2. Set blade to 8:1 tilt and to wood thickness (tilt blade sloping up and to the right)
  3. Strike lines with marking gauge (Tite-mark) on all both faces of both pieces.  Mark the pieces as “inside and outside and pins and tails” with pencil
  4. Cut just slightly “deep” (more than wood thickness by a couple thousandths)
  5. Clamp stop block onto fence to allow for repeatable cuts
  6. Cut tails (one cut then flip block then move stop block toward center and repeat with flip)
  7. Move blade to 90 degrees
  8. Cut off shoulders
  9. Chop out tails (chop ½ way through and then flip and complete)
  10. Mark pins from tails onto 2nd piece (lay newly cut piece on top of 2nd piece).  You are marking onto the OUTSIDE of the 2nd piece
  11. Leave blade at 90 degrees and wood thickness exactly
  12. Set fence at 8:1 angle (sloping down to the right side of the JMP)
  13. Cut 2 cuts on pins pieces using marks (leave fat – cut on tail side of lines). THESE TWO CUTS SHOULD BE CUT #4 AND #2 COUNTING FROM THE RIGHT SIDE OF THE JMP
  14. Switch fence to 8:1 angle in other direction
  15. Cut other 2 cuts. THESE TWO CUTS SHOULD BE CUT #1 AND #3 COUNTING FROM THE RIGHT SIDE OF THE JMP
  16. Chop out tails using fretsaw and then jig and chisels (chop ½ way through and then flip and complete)
  17. fit

Note pencil lines on saw table that make setting the fence angel for 8:1 dovetails faster and more repeatable.

About mattsanf

Matt Sanfilippo is the Chief Partnership Officer (CPO) for the College of Engineering at Carnegie Mellon University (CMU) and Co-Director of its Engineering Research Accelerator. In this role, Matt coordinates and enables strategic and sponsored research opportunities across the college, and stewards the development of proposals for major research opportunities along strategic themes. Additionally, he enables collaboration among the college's research institute/center executive directors, and industrial and government relations personnel in the pursuit of opportunities with industry, federal and state governments. Before becoming CPO for the College, Matt was the Senior Executive Director for Research Initiatives, the Executive Director of CMU's SII (Smart Infrastructure Institute) and ICES (Institute for Complex Engineered Systems), and Associate Director of PITA (Pennsylvania Infrastructure Technology Alliance) and RAMP (Research for Advanced Manufacturing in Pennsylvania). Before CMU, Matt was Managing Director of Applied Technology for Michael Baker Corporation, an engineering and energy services firm. Matt managed Baker's technology division including Geographic Information System (GIS), software and web development, multimedia, virtual reality, visualization, Global Positioning System (GPS), mapping and surveying services. Before joining Baker, Matt was an Innovation Director for Redleaf Group, a Venture Capital/Operating Company focused on information security, supply chain and mobility solutions. While at Redleaf, Matt managed technical due diligence for seed-stage investments and coordinated relationships between Redleaf and their partner companies. Prior to Redleaf, Matt was CIO of GZA GeoEnvironmental Technologies, an infrastructure engineering firm, and operations manager for their Internet start-up that focused on web-technologies for health and safety and manufacturing metrics. Matt is on the board of Larson Design Group (LDG), past Chairman of the Board for the Pittsburgh Botanic Garden, current board member of the Pittsburgh History and Landmarks Foundation (PHLF), current Vice President of the Sewickley Heights Gun Club (SHGC) and former member of the Information Sciences and Technology Advisory Board for the Pennsylvania State University Beaver. Matt is also former Vice President of the Pittsburgh Chapter of the Association of Internet Professionals and former Vice President of the Board of Trustees for Baker Combined Charity of Pennsylvania.

Posted on December 14, 2011, in Woodworking. Bookmark the permalink. Comments Off on Checklist for using the Bridge City JMP2 to cut “through” dovetails.

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