Reference Compact Bass Unit Build (BD-Design)
by Ray P, Tuesday, November 23, 2010, 13:55 (4875 days ago)
Well, I've got CAD drawings done for the Ref Compact units ready for CNC machining. Unfortunately I caNot obtain 32mm thick Birch Ply. Will I be OK laminating 24mm birch ply and 9mm MDF (=33mm thick) or is it preferable to laminate 18mm and 15mm birch ply (also =33mm thick but quite a lot more cost).
Ray
Reference Compact Bass Unit Build
by Bert , Tuesday, November 23, 2010, 15:00 (4875 days ago) @ Ray P
Hello Ray,
Well, I've got CAD drawings done for the Ref Compact units ready for CNC machining. Unfortunately I caNot obtain 32mm thick Birch Ply. Will I be OK laminating 24mm birch ply and 9mm MDF (=33mm thick) or is it preferable to laminate 18mm and 15mm birch ply (also =33mm thick but quite a lot more cost).
The Ref Compact is originally designed for 32mm particle board having a specific panel resoance behaviour with related damping techniques used later on.
Using plywood and/or MDF makes it something else but nevertheless it can work out okay too. What to do is up to you here...
Birch + MDF will do okay making it nicely "dead" due to the different materials used. 18 + 15mm Birch would be overkill although stiffness has its advantages...
I am not sure about the quality of Birch you have access too but if possible go for full Birch and not the cheap Pine/Birch combo which almost looks the same but is only half the weight!
Bert
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BD-Design - Only the Best!
Reference Compact Bass Unit Build
by Ray P, Tuesday, November 23, 2010, 16:03 (4875 days ago) @ Bert
Ah! assumptions are dangerous things. I had assumed you had used birch ply.
What sort of particle board did you specify - I'll check it out.
The birch ply I can get hold of is best quality but only available upto 24mm thick. Not cheap though, over £100 a sheet.
Ray
Reference Compact Bass Unit Build
by Bert , Tuesday, November 23, 2010, 17:14 (4875 days ago) @ Ray P
What sort of particle board did you specify - I'll check it out.
The cheap stuff...
The birch ply I can get hold of is best quality but only available upto 24mm thick. Not cheap though, over £100 a sheet.
I know, probably the same as used for the REF2010...
Bert
--
BD-Design - Only the Best!
Reference Compact Bass Unit Build
by Ray P, Wednesday, November 24, 2010, 15:02 (4874 days ago) @ Bert
I interpret 'particle board' to be medium density fibreboard (MDF)?
Ray
Reference Compact Bass Unit Build
by Frode, Wednesday, November 24, 2010, 15:20 (4874 days ago) @ Ray P
I think Bert uses what you probably would call chipboard.
Frode
Reference Compact Bass Unit Build
by Gasper, Wednesday, November 24, 2010, 16:13 (4874 days ago) @ Frode
Gasper
Thanks, that's the material...
by Bert , Wednesday, November 24, 2010, 16:16 (4874 days ago) @ Frode
...and it is called chipboard (completely forgot the name!).
Thanks Frode,
Bert
--
BD-Design - Only the Best!
Thanks, that's the material...
by Frode, Wednesday, November 24, 2010, 16:46 (4874 days ago) @ Bert
Both names can be used:
Particle board, or particleboard (or chipboard in the UK, Australia and some other countries)
Frode
Reference Compact Bass Unit Build
by Gasper, Wednesday, November 24, 2010, 07:41 (4874 days ago) @ Ray P
Why don't you use two 16 mm particle boards glued together with polyuretane glue (under preasure) and get 32 mm...
Gasper.