advertisement


Maple and Walnut Heaven

Not much visual progress made, just continued the glue up of the various strips of walnut and maple. Will take some pics next update
 
I have been remiss on the wip pictures. I will try and upload some to show the steps so far. I have been sending some to CK so as not to torture him too much ;-)
 
For the back of the woofer, worth doing but not as vital. Very easy if done before attaching baffle- assuming that’s possible, most cabinets don’t have a separate baffle like these do

Far more important though is the biggest radius possible on the 2 long verticals sides, helps edge diffraction significantly and improves the horizontal off axis performance, where it matters most. Side wall first reflection points often being the most important.

Top & bottom can be done too but of less importance. I use 3” diameter roundover cutter, does mean the cabinet needs to be a bit wider than the woofer though. Most manufacturers skip this part since it adds a fair bit of cost and complexity to the build, but is well worth doing
 
A few pics in rough order to this Monday

Cabinet glue up, always terrifying but satisfying

51020371848_ac441b0c06_c.jpg


51021202727_9fee6d6d2a_c.jpg


51021101851_5801e034a1_c.jpg


My idea to accommodate any wood movement, to make it a mechanical fixing. Will probably be glued in the centre and use silicone to make sure the seal is goo but it will clamp nice and tight.

51021202597_2ba75f1d05_c.jpg


With these stainless steel angles. I hate drilling stainless but cobalt drills did a great job. Lots of practice with a hacksaw as well.


51020371633_e5343ab3e2_c.jpg



Screwed into the sides

51020371543_1416bdc1fd_c.jpg


51021202467_ddf18e2705_c.jpg


51020371473_5966b2c63c_c.jpg


Screw inserts let into the front and back pieces

51021101521_afb3498949_c.jpg


loosely bolted to check for expansion movement

51021202327_9e50beb6f9_c.jpg


51020371318_3dc2339769_c.jpg


Current status with through holes cut to size and the side bevels sawn. The round overs on the front panel will probably be done by hand with the rest done by a router as they are 90deg and the front panel angles are not.

51021101316_8770f9acb6_c.jpg


Inset cuts for the drivers will be done once the rest of the cab is assembled finished and sanded
 
Yummy....
What about a back-plate on the tweeter recess to stop internal pressure on the tweeter housing as the baffles are so thick?
 
No, I didn't think it would be anything else TBH. It was just to keep the pressure changes from modulating the WHOLE tweeter chassis.
 


advertisement


Back
Top