|Forum topic by BTimmons||posted 07-26-2013 08:23 PM||920 views||0 times favorited||9 replies|
07-26-2013 08:23 PM
I’m making a dark box for my friend to use in his wet plate photography hobby/potential business venture. It will allow him to operate a mobile dark room to expose ambrotype images.
The box will be frame and panel construction with overlapping through tenons at each corner. Frame pieces are red oak and the panels are 1/2” birch ply. See the two images below of one side panel, showing the exploded view and dry assembly.
I’ve never done a frame and panel piece before, so I want to make sure I get this done the right way. The overlapping through tenons is another first for me. See below for my first attempt, which came out somewhat hairy but actually cleaned up pretty well after this was taken. The joints are tricky, getting things to fit just right. So…much…mortising…. But hey, I wanted a challenge. It’s kind of a fun decorative element. The ends of the through tenons sit about 1/8” proud of the surface.
Here’s my tentative plan and what I need feedback or correction on.
1) Stain each panel and each frame member separately before glue-up. Thinking of using General Finishes Gel Stain. My buddy likes the dark reddish-brown colors so I might make a mix of two separate stains. Naturally, I will test scrap pieces for color before I attempt this huge undertaking.
2) Glue-up one side frame at a time in sub-assemblies, so as to not rush everything all at once.
3) For the through tenons, stain the end grain nubs that will poke through the vertical members ahead of time, presumably during step 1.
4) Cover the tips of through tenons in blue tape so no glue is absorbed as they are pushed into and through their mortises. Or should I use shellac as a post-stain sealer on the entire piece to prevent glue from being absorbed?
5) Immediately remove tape on through tenons and clean up any glue squeeze-out.
6) Wait a day for all glue joints to set, then varnish the entire assembled box with Arm-R-Seal.
-- Brian Timmons - http://www.BigTWoodworks.com