Well the Glue to start the frame is dried and went very well!
Got a back part cut and did a test fit Here you can see the back with the test Mike support places just about in the right place.
Also did a test coast of the poly coat on some Walnut stock..
Well its been a busy week but got some time on Friday to get started on some more.
The first item was if it generated a magnetic signal that could affect a microphone. Well the answer is no! ^_^ Use a scope with a 1x direct probe and a Dynamic Mike. Saw a bit but had to almost put the mike on top of the only coil on the PC board. That little thing seen in the pictures that looks like a bobbin of thread.
Second task today was to finally bite the bullet and cut some of the walnut. Nice tough wood. If this frame turns out wrong. Will get a small rotary saw from a tool place near by. And cut better ends! Uses 240 and 600 sand paper.
After a quickly test decided to go with polyurethanes and no stain. Its dark enough and figure two coats hand rubbed in will be as glossy as I want to get.
Need to either find that darn 6-32 die or get one! Found others but not that one! Cant find brass u bolt’s that size so going to make some. I will have some room inside for inside mount and decided for stability to use some small brass brads to lock the frame a little more solid. That will depend on the glue.
Still a lot to do! Including Needing to trim a hole for the SD cart. Remove the USB connector. Install a SPST micro toggle switch in its place. Fix the front. Cut and mount the back along with support for the mike clamp. Figure final weight and get the counter weight cut and its mike suport ear attached. Have a power supply and the “coax” power cable and the internal shielding for the LMF. And thats not all! 😉 Oh well…
Last Saturday had enough part to build what I call a Universal Mike Support. Fancy name for a bracket that can tilt the two ends. This was necessary due to the angle of the camera and the best viewing angle of the LCD. It loosely bases off of how my 20-15-10 Meter Beam is set up. Needed a decent easy to install clamp so to speak.
Well went through all of my 6-32 threaded rods trying to remember how to bend a rod… finally figure it out but at the same time decided to go all brass.
Cutting the three wood test parts was very simple with the Dremel and its drill stand adapter…
Earlier I had cooked up, using cheaper and ease to use wood than the Walnut, the sides for the LCD panel and drive electronics. Going to put the power switch in place of the USB Mini B Jack it came with and there will be a slot for changing the SD Media.
In place of the USB power jack switching to a thin SMA connector. Shielded, cheep and has brass fittings. And easy to thread… Cant use the PS it came with due to RF noise! Even with a PI filter and shilding could not cut it down enough. So found an old style non switching PS to power it. Only takes about 350MA from 4.5 to 5.2 volts to power it.
Nightwing2012's Weblog 