BillFitzmaurice.info

miked wrote:

At this point the project seems to be constructed of about 87% PL and only 13% wood. At least in my mind.

That is a frequent, and prevalent observation around here....welcome to the club. Your DRs are looking great, my friend. Keep plugging away.

Those percentages are likely to change once you bring out the Bondo.

You are doing fine. Once you hear those cabs, you'll be soooo thrilled, and it will all be worth it.

Gluing up the tweeter module. Towards the end of the "how to" document, measurements get less frequent and there are more "fit it to the size you have" statements. Slows things down a lot but each cabinet is the sum of many slight differences by this point. Or maybe that's just me.


Two melded tweeters complete, airtight and strengthened with PVC pipe glue. Almost to melting point, easy with the glue or you can melt the thin plastic entirely.


Second speaker module. Yes, I know, missing the channel on the face. I fitted the tweeters and I think I can live without it. We will see whether that was a good choice.


Handy jig I made that made cutting the curved sides to 45 degrees a piece of cake.


Module off.


Module on.


Next up adding sides and bottom v-shape (might do that as a single piece), then the butt cheeks!



QUESTION: where is the best place to route the speaker wire to the Speakons? There has to be a hole through something and I'm guessing it's the plastic pipe then through the butt cheek to a central speakon? I'd love to see a photo of someone else's solution there. Your wire through to the inner area where it meets the two crossovers and then to the speakers?

What style are you going to go with on the back? Which ever way, the Speakons can be installed on the back, with the wires going through the plastic pipe. This is easiest with the part back or the full back. And yes, from there to the inner chamber where the filters will be mounted.

Mr Tom, I'm going for the half-back as the thing is damn heavy at the moment. Thanks for the advice, I'll go through the plastic pipe when I get to wiring up the box.
No clear idea how to layout the crossovers, why no photos of example component positioning? I'm used to constructing 0605 surface-mount electronics or breadboarding a design. Never made power circuits before.

Skinned the tweeter modules.


Added the side support, as yet untrimmed.


Again, the perfect job for PL glue's "gap filling" capabilities.

Fatlimey wrote: No clear idea how to layout the crossovers, why no photos of example component positioning?

They're in the Sketchup.

Thank you Mr BFM. I will rip apart those models a little more.

Second supports finished and trimmed to size. Using a guide for a circular saw made this simple.


Adding the infamous butt cheeks was a lot more straightforward than I thought.


The only downside is that I have only one set of straps, so each side takes a 6-8 hour wait before I can use the straps again. Productivity has slowed right down.

Well blow me down if the crossover component layouts aren't right there in the sketchup file.
What an excellent reference that is for being the last word.

How's the progress? I hope it turned out?..