Asanuma project camera – finishing and installing the new base plate…

Continued from last night…

I stopped by Ace on the way home today and picked up three 1/4-20 screw-in threaded inserts. Why three? Well, they’re $0.50 each, and I always plan on messing up. Drove home and dug in.

I went with the plan to trim the outside edge of the roundel to fit the rebate on the camera. Tested it out on 1/8″ plywood first. After a few iterations, the fit was perfect.

Asanuma base plate redux...

Set up to cut the roundel. Put some carpet tape on the inside face, threaded it over the bit, and lowered it onto the backing board.

Asanuma base plate redux...

Then I lowered the spinning cutter onto the roundel.

Asanuma base plate redux...

LOOK CLOSELY AT THAT! Whatcha think is gonna happen when that cutter bears down through the unsupported edge? Yep – tear out the bejeebers of it. Rookie mistake, but salvageable, I think. But always cut things like this with the backside supported. Anyway, the walnut roundel now fits the camera.

Asanuma base plate redux...

Next, I drilled out the center pilot hole with a 3/8″ bit and threaded in the insert.

Asanuma base plate redux...

The insert projects into the path of the camera carriage, so I cut it flush with a Dremel.

Asanuma base plate redux...

Now to address those stupid screw holes. Truth be told, I’d planned on this being a practice shot, and didn’t give the screw holes much consideration. But it’s a keeper, so they need to be plugged. I drilled the holes out with an 1/8″ bit:

Asanuma base plate redux...

Then made some 1/8″ walnut dowels with a shop-made dowel plate.

Asanuma base plate redux...

(Essentially, you drill a hole the desired size in a piece of flattened 1/8″ steel. Trim some of the desired wood to a little large than the hole, and gently tap the wood through the hole with a small hammer. That’s it.)

The dowels get glued and tapped into the roundel

Asanuma base plate redux...

then cut flush when dried.

Asanuma base plate redux...

Asanuma base plate redux...

The plugs will always show, as they have exposed end grain and are a bit darker finished than face grain. But they look better than holes in the finished piece.

Three coats of sprayed lacquer and a spit coat of shellac on the inside face and it’s ready for installation. I put a drop of poly glue on the insert and installed it for good in the roundel. Titebond II for the camera install.

Asanuma base plate redux...

Asanuma base plate redux...

It’ll stay in clamps until tomorrow, when I’ll reinstall the chrome trim piece to finish it.

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s