tweaking the Fostex 206E - Page 11

wixy · 5th February 2007, 10:06 PM

Im using MDF for the construction. I was going to biscuit join the main pieces of the cabinets, but now I think I might as well just glue everything together and save some money by not having to buy a biscuit joiner.

lousymusician · 6th February 2007, 02:04 AM

Quote:

Originally posted by wixy
Im using MDF for the construction. I was going to biscuit join the main pieces of the cabinets, but now I think I might as well just glue everything together and save some money by not having to buy a biscuit joiner.

I use biscuits to help keep pieces aligned while I apply the clamps, but they don't add to the strength of the final joint. If you're more careful (and patient) than I , butt joints will work fine.

wixy · 6th February 2007, 02:23 AM

Really? I thought the purpose of biscuits was to provide extra strength for the joint, and I also thought that biscuits allowed for some movement in the joint when two pieces of wood are initially joined. Please correct me if I’m wrong.

Thanks for the tip, if that’s the case then I might just try to be very careful when applying the clamps to make sure everything lines up straight rather than use biscuits.

hugz · 6th February 2007, 08:14 AM

Quote:

Originally posted by wixy
Really? I thought the purpose of biscuits was to provide extra strength for the joint, and I also thought that biscuits allowed for some movement in the joint when two pieces of wood are initially joined. Please correct me if I’m wrong.

Thanks for the tip, if that’s the case then I might just try to be very careful when applying the clamps to make sure everything lines up straight rather than use biscuits.

People often say (and it has been similar in my experience) that a glue join will be stronger than the MDF itself. That is to say that if you were to try to break two bits of glued together MDF apart, the wood will actually snap before the join fails

Pit Hinder · 6th February 2007, 02:31 PM

Yes to that. (*sniff, sob, looks for beer*) No answers yet from Kangarooland as to brand names of good vinylic, let's hope someone shares his knowledge. And bisquits...if you like to build something with Lego toys and love 90° angles they are good fun, but not worth to have your sister marry them. Back to acrylic: you don't need dozens of clamps, and clamping crazy angles is something else anyway. Come on, tell us - what is your favourite glue?

Pit

planet10 · 6th February 2007, 06:37 PM

Quote:

Originally posted by Pit Hinder
And bisquits...

I understand that you also end up with a weaker joint. Really good if you need something to help you line stuff up.

dave

Pit Hinder · 6th February 2007, 06:44 PM

Quote:

[i] Really good if you need something to help you line stuff up.
[/B]

Yes. But a workbench and a wall you know to be at 90° is fine.

zBuff · 6th February 2007, 09:19 PM

After a bit of search I finally found out what this "Vinilic" glue that Pit Hinder talks about. It's just plain old PVA, Polyvinyl Acetate, white glue. No too sure what the best brands are though

wixy · 9th February 2007, 09:19 AM

I have a question about cutting the hole for the driver.

I notice with a lot of pics I see of speaker constructions that people cut the same hole with two different diameters on either side (its the best I can describe it, don't know the technical term).

Is it necessary to do this or can I just cut a hole and be done with it?

Also, another question, Fostex say to use 'sound absorbants' in certain locations as shown on the plan: http://www.fostexinternational.com/d...ez_enclrev.pdf

What could I use for this?

testarossa2k · 9th February 2007, 12:56 PM

just cut the hole in the normal way, it doesn't do anything cutting in that strange way. All the small thing don't do notinhg, we're talking about millimiters.

you could use the interior of pillows. wich is made of acrilyc material or polyester.

But the best thing you could do is using plywood instead of MDF. If you want to stay on cheap use the chipboard of good quality.

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5th February 2007, 10:06 PM	#101
wixy diyAudio Member Join Date: Mar 2006 Location: Melbourne, Australia	Im using MDF for the construction. I was going to biscuit join the main pieces of the cabinets, but now I think I might as well just glue everything together and save some money by not having to buy a biscuit joiner.

6th February 2007, 02:23 AM	#103
wixy diyAudio Member Join Date: Mar 2006 Location: Melbourne, Australia	Really? I thought the purpose of biscuits was to provide extra strength for the joint, and I also thought that biscuits allowed for some movement in the joint when two pieces of wood are initially joined. Please correct me if I’m wrong. Thanks for the tip, if that’s the case then I might just try to be very careful when applying the clamps to make sure everything lines up straight rather than use biscuits.

6th February 2007, 02:31 PM	#105
Pit Hinder diyAudio Member Join Date: Nov 2006 Location: Hannover, Germany	Yes to that. (sniff, sob, looks for beer) No answers yet from Kangarooland as to brand names of good vinylic, let's hope someone shares his knowledge. And bisquits...if you like to build something with Lego toys and love 90° angles they are good fun, but not worth to have your sister marry them. Back to acrylic: you don't need dozens of clamps, and clamping crazy angles is something else anyway. Come on, tell us - what is your favourite glue? Pit

6th February 2007, 09:19 PM	#108
zBuff diyAudio Member Join Date: Nov 2004 Location: NZ	After a bit of search I finally found out what this "Vinilic" glue that Pit Hinder talks about. It's just plain old PVA, Polyvinyl Acetate, white glue. No too sure what the best brands are though

9th February 2007, 09:19 AM	#109
wixy diyAudio Member Join Date: Mar 2006 Location: Melbourne, Australia	I have a question about cutting the hole for the driver. I notice with a lot of pics I see of speaker constructions that people cut the same hole with two different diameters on either side (its the best I can describe it, don't know the technical term). Is it necessary to do this or can I just cut a hole and be done with it? Also, another question, Fostex say to use 'sound absorbants' in certain locations as shown on the plan: http://www.fostexinternational.com/d...ez_enclrev.pdf What could I use for this?

9th February 2007, 12:56 PM	#110
testarossa2k diyAudio Member Join Date: Dec 2005 Location: Bologna	just cut the hole in the normal way, it doesn't do anything cutting in that strange way. All the small thing don't do notinhg, we're talking about millimiters. you could use the interior of pillows. wich is made of acrilyc material or polyester. But the best thing you could do is using plywood instead of MDF. If you want to stay on cheap use the chipboard of good quality.