The NFX design notes can be previewed here:

https://www.decware.com/paper83.htm

And the plans will be online soon, as they are finished.

Steve

This is right on time, since I have 2 pairs of 206's that need a home.

The thing I really like is how Steve describes the sound as very big and open due to the venting out of the sides.  That means that the change I've made to my tombstone horn idea should achieve a similar "big" sound with the horn mouth being around the entire perimeter of the cab.

Looking at the plans, I don't think the added complexity of hornloading will be necessary. lol

I can't wait to see it John (the modded tombstone)! You're probably as much (maybe more) of an experimenter that Steve and Bob. You seem to have come up with some unique ideas. So I've absolutly avoided putting my SI coaxes in even a flat board and I've had them since last Nov. I think. What should I put em in? One of your designs?
I wanna set of NFXs now. I'm shooting for a record breaking collection of Hi-Fi speakers in the houshold. Should be 6 0r 7 different pair by next year. Hows that sound? Pretty good I'd say. What are you listening to most these days?

I don't want to hijack Steve's NFX thread anymore.  I can't wait for his plans to become available as this is something I want to build, especially since I already have drivers for it.

I'll update my tombstone thread once I have some results.

Thats exactly what i was about to ask, how would B200's work in the NFX? Hmmm, this may well become next summers project, depending on feedback given about the complexity of the build.

Its an awsome design, and something id really like to try, however id have to cut all the angles with a jig-saw (skill-saw) and that worries me. The WO was bad enough.

the hills are alive with the ....  ;)

I'm interested also.

I have a spare pair of fe206em ready to be installed.

I would probably build them using straight angle.

On the plan, is there construction note for the 8 degree one and the straight angle one ?

cannot find the width of the front baffle on the plans!?

please help

SOM

[quote author=John in CR  link=1153620804/15#15 date=1153877497]
Before cutting wood, we need to get a clarification.  As drawn, the  A brace won't fit at the joints of the rear panel with rear left and and rear right panels.  It looks like the A brace will need an additional 45 degree angle cut along the outer portion of its rear end.

Lastly, what exactly are "poly foam spheres"?  Are we talking about rough surface or smooth surface styrofoam type balls available at hobby stores or are we talking about some type of foam rubber?  If we're talking about polystyrene balls, which aren't very absorbent, then rounded chunks of foam rubber may be the first cab tweak. [/quote]

I interpret brace A as drawn in the callout, without a 45 degree angle at the rear, as correct.  I think the 45 degree line you are viewing is the backside of braces B which are at different elevations than braces A.  I see brace A as setting flat end grain (8 degree crosscut) against the back panel.

The ball surface texture question is one I have too.

[quote author=rmt  link=1153620804/15#18 date=1153927169]
The ball surface texture question is one I have too. [/quote]

Think "NERF" ball, you know the soft foam kiddie play balls about 6 or 7 inches in diameter?

My off the cuff guess would be 8 degrees divided by the square root of 2, but correct or not, I have no interest in trying to cut it.  I'll take the easy route.

Well I completed a good part of my scale model. I made it full sized.  I am quite pleased with the results as all the pieces fit together nicely.   I used some scrap MDF from a home entertainment center I had been saving for a project.  It was not too difficult to cut the bevels and miters after studying the plans.  I checked my math with projection drawings so I was real sure the parts would fit.  They did.  This is not to say I cut the parts correctly each time. I want to emphasize here that the miscuts were the variety where I put the piece in the crosscut saw backwards or upside down from the correct way.  Very easy to do if you get complacent.  I initially cut the tricky ones much longer than needed and then cut them down to size after a first cut to check fit against the other part.  I then could use the same saw setup for the opposite end.  I cut the PL-xs from a four foot section and just worked it down from there.  This method works well for getting a length of stock that has a good cross section from the long rips.  The beginning and ending of a long rip sometimes lose constant cross section so if you cut a longer piece you will have a better chance of getting a good part to cross cut.

Also use the front as a template to set the length of the side pieces. Otherwise you will not have a flat top.

I would have finished the model but it was just too darn hot out there. I had to cut and assemble outside because of the MDF dust.  That stuff is nasty. Tough on your saw blades too. I have had a mask on since yesterday in this heat.  Yuck!  All my tools are on rollers so I move them outside for cutting and welding.  Did I mention already it is really hot outside.

My next step is to get some birch plywood to build a set to use. I will use the model pieces as a template for saw setups and as a guide to keep the cutting R/L pieces organized.  Fun build.  I have decided to go with real solid maple or cherry instead.  btw, I will not use MDF again.  My wife was not pleased with the dust.  Wood chips she does not mind but MDF dust - NO!

Has anyone figured out what the baffle width is?

Also when looking at the top of the plan, are the side ports open between P2-R on the right side and and the back verticle panel R and same as the left side P2-L and R?

No dimensions given for pedestal and top and bottom boards! will these be available later or do we just have to try and build it with the info we have?

Manowar ???

The poly foam balls are what we grew up knowing as NERF balls.  Now available by the name POOF balls.  I got them from Walmart, but have also found them online.

Steve

I still don't understand what the orange shaded area of the top view is supposed to show?

I understand the front and side view of the orange area...a base with three spikes!

Can someone clarify,

Thanks!

[quote author=John in CR  link=1154300940/15#25 date=1154208506]RMT,

How much to do an extra pair while you're at it? [/quote]

How about, instead, you just send me those  "This is right on time, since I have 2 pairs of 206's that need a home. "  ;D

Here are some photo's of the NFX cabinets with the drivers removed. These are waiting for review once the new drivers and foam balls arrive.

Hey RFZ_Quest,

I am not seeing any pictures!

Anyone else having these problems?

Manowar

[quote author=rmt  link=1154300940/30#32 date=1154301862]

How about, instead, you just send me those  "This is right on time, since I have 2 pairs of 206's that need a home. "  ;D

[/quote]

RMT,

Once I invest in shipping and taxes to get drivers into Costa Rica, it makes no sense selling them to be shipped somewhere else.  I like having four anyway for comparitive purposes as I begin to mod them and build enclosures.

[quote author=RFZ_Quest  link=1154300940/30#37 date=1154396320]For some reason this third party source for uplinking photo's has been a problem for some. They show up with my server but when refresh is hit, they show red x'd blocks! Try right clicking on the mouse and click on show picture. I could always transfer these pictures from my web domain as that has never been a problem. If everyone is having this difficulty, let me know and I will transfer the uplink from my website.

BTW: I had several more pictures of these cabinets posted but they obviously were deleted by the eye in the sky. [/quote]


Deleted them because I thought they were empty posts...

Sorry.

[quote author=AudioNirvana  link=1154300940/30#33 date=1154340256]Anyone got any pictures? [/quote]

I took pictures but my net service is incomprehensible for posting accessible pictures online.......  Ok, I figured it out.  Click web site for pics.

[quote author=rmt  link=1154300940/30#42 date=1154476759]

I took pictures but my net service is incomprehensible for posting accessible pictures online.  Ok, I figured it out.  Click web site for pics.

[/quote]
Nice work!

What kind of glue are you using with the prefinished  MDF? Or do you just remove the finish at the joints?

[quote author=Steve Deckert  link=1154300940/30#41 date=1154473484]I just looked at the prints and I'll be damn, the width measurement is gone!  It is 12.5 inches btw.  I'll update the print soon.

Steve [/quote]

Rear panel width 4.3 + 4.3 + 3.75 = 12.35 < 12.5.   ???   "B" braces could have a slight gap with wider panel.  Not that I think it really matters.  I used 12.35 in width on my template and the "B" braces were flush at the back and along the sides.  YMMV.  I am considering applying a cloth cover (grill) between PL2 and PL3 panels so I would want the "B" brace slightly indented anyway to fit a cloth grill flush on the outside.  I have not decided how to do this mod yet so I am kind of stuck at this point.  I also am wary of any obstruction the cloth grill could have to air flow.