The mock-up and choices
by
, 07-08-2011 at 9:32 PM (2218 Views)
After I get the concepts more or less set, I start to think practical. The first thing do (usually mentally), is figure out a draft sequence of operations. Here is my initial concept for this project.
Initial sequence thoughts
- Legs Bandsaw curve & retape
- Legs cut top angle
- Legs Cut slot for bridle joint
- Legs bandsaw taper & retape
- Arc cut bridle joint dado
- Arc bandsaw curve and retape
- Arc taper ends
- Arc & Legs router trim to templates
- (end joint fabrication)
- Remove offcuts
- Legs cut stretcher mortises
- Arc and Legs Round over 1/8" edges
- Inlay arc (as desired)
- Stretcher fabricate
- Dry fit
- While clamped, mark legs for trimming bottom
- While clamped, measure and mark for bottom shelf as necessary
- Template bottom shelf
- Cut mortises in legs for bottom shelf
- Test fit and fabricate bottom shelf
- Dry fit assembly
- Add stringing to "feet" (inlay?)
- Glue up frame assembly
- Pin bridle joint
- Trim and round over leg tops
- Mock up top?
- End joint mortise in arc
- Fabricate facet mounts (prongs) square with joint (without seat for facet)
- Test fit
- From template cut birds mouth and seat in prong (match arc of top)
- Test fit top
- Shape facet prongs
- Test fit and sand prior to glue up
- Mask off joints
- Finish assembly pieces
- Assemble and glue prongs and Arc together (hide glue for future prong removal)
After this is done, I create my template for the curves. I used 1/4 birch ply this time. I managed to delete the pictures I took of template making and layout making. The templates are very straight forward. With the layout, I try to be very precise and anticipate build issues. I find with curves, once things become round some tasks get inordinately difficult without building jigs. (I hate building jigs). I glued up poplar for the prototype and jointed it when dry. Layout on the stock the pieces to be cut, in this case a long leg and the arc. Due to the number of steps, I printed out a copy of the sequence of operations to take notes on while I am fabricating.
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There are four things I am looking to explore with the prototype build.
- Tall vs short table (overnight I came to the conclusion, "why choose?" So I think I will be building one of each.)
- Leg dimension and how it intersects the Arc (Equally proud front and back, Flush with the back, More proud front than back)
- Verify sequence of operations
- Validate construction methods on cheap materials before wasting good lumber
I found several improvements in the sequence of operations. Unfortunately, I also realized the prong joint to the arc was going to be more difficult than I thought initially. I punted on that for now. I will draw it out full size (using my template of course) to figure out just how I want to do it. I have an easy solution, but I think it will detract from the very "finished" aesthetic I am trying to craft here. More later...
I decided that equally proud front and back wasn't working for me to I mocked up the two different joints on ether end of the Arc.
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I am out of picture space on this post, so the next will be the prototype reveal.