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MDF seems so weak...
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And you think particle board is stronger?...:wink:
MDF is used because of it's lowish cost, it's high weight, and the fact that it 'machines' so nicely.
IB subwoofer FAQ page
"Complicated equipment and light reflectors and various other items of hardware are enough, to my mind, to prevent the birdie from coming out." ...... Henri Cartier-Bresson -
Machines great with a router. Better surface for finishing.Comment
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Originally posted by ThomasW
There is also nothing better than a lung full of mdf dust. 8O
I'm still coughing from last month.Call me "MIKE"
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Dual sealed 18" Mach-5 ixl 18.4 subsComment
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Any advantage to using HDF assuming you and 6 friends can move it when your done?Comment
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I see. Particleboard just seems harder to me, I trust a screw getting a good bite in it, ya know? And it seems stiffer too, though I may be wrong about that. From a router/machining perspective particleboard is kind of a pita.Originally posted by ThomasW
I was excited to start my first DIY project this weekend. Today I'm making my first baffle for measuring drivers. Went to Sears and Home Depot and bought a tablesaw, router and table, and a skill saw. I got everything built in the garage :T . UPS was supposed to deliver a package from PE yesterday, but left it at the warehouse I guess. At least that's what the tracking # note seemed to say. Unfortunately it doesn't look like they are gonna make it today, so I guess there goes my weekend of fun in the garage... :cry:Comment
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Mass not strength, makes it best.Comment
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I wouldn't trust a screw in particle board to save my life. I prefer the density of mdf.Comment
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Why not cast the enclosure in concrete? Let's blow the OP's mind and introduce baltic birch ply into the equation, also.
I've had particle board melt on me also, even from just ambient humidity. MDF seems to accept being wet just fine, even though it will swell up.- Patrick
"But it's more fun when it doesn't make sense!"Comment
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Thanks, Pete. And some folks wonder why I like HDF combined with BB ply!
the AudioWorx
Natalie P
M8ta
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Isiris
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Obi-Wan
Saint-Saëns Symphonique/AKA SMJ-40
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Resistance is not futile, it is Volts divided by Amperes...
Just ask Mr. Ohm....Comment
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I thought of doing mine out of HDF..any reason for/against?Comment
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The need for a forklift to move them ....... :WOriginally posted by Eric_C
Also any of these man-made materials have no grain = no real strength /rigidity. That's why Jon's method of laminating a thin layer of HDF (for it's mass and machining properities) to BB ply works the best of anything we've ever used.
IB subwoofer FAQ page
"Complicated equipment and light reflectors and various other items of hardware are enough, to my mind, to prevent the birdie from coming out." ...... Henri Cartier-BressonComment
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Originally posted by Eric_C
There are times I do that- like the front panel of the M8ta speaker.
12 layers of 1/4" HDF, laminated up in 1" stacks, cut, then clamped together. That is one VERY heavy and rigid front panel.
The side and back walls were made with BB play laminated with 1/4" HDF.
The empty completed cabinet (no crossover or drivers) weighs about 100 lb.
Not for portable applications....
the AudioWorx
Natalie P
M8ta
Modula Neo DCC
Modula MT XE
Modula Xtreme
Isiris
Wavecor Ardent
SMJ
Minerva Monitor
Calliope
Ardent D
In Development...
Isiris Mk II updates- in final test stage!
Obi-Wan
Saint-Saëns Symphonique/AKA SMJ-40
Modula PWB
Calliope CC Supreme
Natalie P Ultra
Natalie P Supreme
Janus BP1 Sub
Resistance is not futile, it is Volts divided by Amperes...
Just ask Mr. Ohm....Comment
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Thansk for the replies everyone! ThomasW where do you get BB in Denver? HD had some birch plywood, had about 10 or so plies. Is this any good?Comment
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My friend Tibor has contacts through a professional cabinet shop, so I have him buy it for me. He has a big pickup truck and I don't...so I have him bring the 5'X5' sheets to my place
Yes as of late I've seen it at HD and it looks just fine.
Also it's sold by the Rockler and WoodCraft stores, they're of course the most expensive unless they're having one of their sales
IB subwoofer FAQ page
"Complicated equipment and light reflectors and various other items of hardware are enough, to my mind, to prevent the birdie from coming out." ...... Henri Cartier-BressonComment
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My local HD sells birch plywood, but not baltic birch. I don't know if it is good, better or worse than baltic birch. The local Ace/HomCo sells 1/2 inch baltic birch plywood (5 X 5 sheets). I have been thinking about laminating it myself so it is 1 inch on my next speaker project. They might can also special order 3/4 inch, but I do not know. There is no Rockler or Woodcraft stores here locally.
FrankComment
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My local Rockler (Orange, CA) has various thicknesses of good BB... at the usual prices. But, they also get stacks of offcut pieces of 5/8" BB. It's about 23"x23", has 11 plys, and many pieces even have a finish quality grain surface. It's $5 a sheet, due I guess to it's small size. I don't know if your local store can get this, or it's a "regional deal". Doubling it, or backing it up with something would make it a suitable material.
Another suggestion, find a commercial woodworking/contractor supply place, they'll have lots of stuff, and at better prices...Comment
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