damn! you go speedy    glueing and screwing will take some time. i think i built mine in about a day, with a skill saw....finished!

I used a brad nailer and wood glue and clamps.
I glued and brad nailed each join then clamped it and waited for that join to dry before moving on. I made some braces that kept everything in position while it dried.

The brad nails and clamps just hold the wood while the glue dries.
Using a brad nailer is by far my favourite tool.

It amazes me that some of the members here can do a excellant job with just a ciculer saw and or jigsaw, and some liquid nails.

EDIT: the speaker and top should be removable.
Barbed inserts or t nuts on the lid and course screws to hold the  speaker baffle.

My opinion only

Thanks for the post, very helpful to see the cabs being built.

MDF is nasty stuff, will make you sick. Definitely use a good respirator, and when done for the day take the brad nailer off the hose , put on a spray nozzle and get it all off your body and clothes.

Don

Thanks guys,

We actually had an air hose available, and used it between every third cut or so. However, the air just seemed to blow the MDF dust back up into the air. I asked about respirators...but was assured that they "wouldn't help". I don't know about that one. I don't do anything without safety goggles.

The barbs and the T-nuts are a great suggestion, I will definitely use those. I'm sure they have some at the shop. Before I complete the enclosure, I need the drivers, and before I can put the drivers in the enclosure, I need to verify their T/S parameters.

I have mapped out the horn expansion taking various measurements on the full-size blueprints. I hope to compare the expansion with the tractrix equation at some point this week. My hunch is a tractrix expansion, but I need to complete the analysis to be sure. Once I get through some other work this week, I intend to model the horn as a straight expansion in Solidworks. May not happen until friday. I expect the project will be completed by sunday. More to come.

[quote author=goldenk10  link=1140398223/0#8 date=1140824808]I picked up my drivers yesterday from my friend's shop. I have spent the last 24 hours running 15 Hz sine waves through them to break in before testing TS parameters. I hope to test the drivers tonight to facilitate completion of my WO32 saturday evening. I will be using CLIOwin to test parameters. Has anyone used this software before?

I have never personally owned any HT stereo components. In my small shared student apartment, I have a "vintage" solid state Realistic STA-820 Stereo Reciever (circa 1977 -- Dad's reciever from college ), some crappy "Boka" computer speakers, and some hand-me-down "Acoustic Monitor" full range cabs with junk-drivers in them.

I am really looking forward to building an entire home system, using the WO32 as the base. The anticipation is building. More to come. [/quote]

sounds like your covering all the bases.

mdf dust is VERY VERY bad for you.poisonous

Wow, I had no idea MDF was so bad for you (poisonous?!). I am glad we are 90% done with the cuts. Tomorrow, we just need to cut the holes in the baffles to mount the drivers.

The saw does have dust collection...I think the bag was at capacity .

Part two should hopefully come tomorrow night. That is when we plan to "glue and screw". I'll get pics up ASAP. I went and tested the TS parameters of my drivers this evening.

Here are the results:


Published Values For Dayton 295-550 vs. (measured) values

Fs---------30Hz---------(27.6691Hz)
Qms-------8.0-----------(5.8588 )
Vas--------52.10 L-------(55.7692 L)
Cms-------.33 N/mm------(.3595 N/mm)
Mms-------82g-----------(92.0244g)
Rms-------2.0 kg/s-------(2.7307 kg/s)
Sd---------332.1 sq. cm.-(333 sq. cm)
dBSPL------88.5 dB-------(88.603 dB)
Qts--------.30-----------(.2488 )

Those are most of the relevant numbers. I did the other driver too, it's numbers were similar, with a slightly higher Fs and Qts. In any case, both drivers measured close to spec, so I am pleased.

We used CLIOwin 6.5 and did the tests over a period of about 30 mins...taking our time and retesting to make sure we got good data.

Instead of putting the drivers in a fixed volume enclosure, we added weight to the speakers. It was pretty ghetto. We took nickels (5g each) and taped 4 of them with packing tape to the woofer cones.:P. Others there were doing the same, so we figured, what the hell....and because the numbers were close, I think taping nickels was effective for my purposes.

After testing two dayton drivers and having their actual TS parameters be close to published values, I would say it is fair to trust the numbers from them. Yay Dayton!

PART II coming VERY soon!

nice thang bout mdf dust....you can mix it with glue and patch you nail holes......

[quote author=Hellion  link=1140398223/15#16 date=1162681950]I rather like working with a certain type of cardboard.  I don't know what it's called, but it is very much like a mixture between MDF and paper with longer fibers.  

If you have ever seen the thick  cardboard that is compressed so hard that it is shiny on one side  and rough on the other, this is close to what I'm referring to.  unfortunately I have only ever found it on construction sites and usually in pretty large pieces because it seems to be some kind of packaging material so nobody actually wants it.

I just found a lumber warehouse that carries baltic birch marine grade plywood by ultraply.  This stuff is extremely nice looking, but is a little more difficult to cut with my  circular saw. (takes longer)

The ends sand nicely with no visible spaces between the layers.  Only one problem... I need a buisness liscence in order to buy it  ::)
[/quote]
im sure you can find someone with a license to buy you a few sheets for a 6 pack.