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Alpair 10p Build
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Old 10th March 2019, 08:37 PM   #51
planet10 is online now planet10  Canada
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Alpair 10p Build
15-18mm should be fine, but with 18mm baffle. A solid baffle should be fine, but even thicker. Do follow solid wood build guidlines.

dave
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Old 10th March 2019, 09:28 PM   #52
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being in the USA I have to deal with inches.. ugh. So 3/4 " will be the thickness. Could you expand on the solid wood building guidelines?
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Old 10th March 2019, 10:54 PM   #53
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Why the FHXL vs the others?
Personal aesthetic preference for smaller boxes than the Silbury, or BIB. If not too imposing for the space, I’d imagine the Silbury would outperform the FHXL, and while it entails quite a few more pieces of material, they are all rectangular with simple 90dg cuts, so with patience all could be cut on a proper sized cabinet saw. Of the several of the manifold style I’ve built, I don’t think any were CNC’d - simple butt joints brad nailed from the outside, then filled and veneered was usually my go-to.

As for “solid wood building guidelines”, I think if you need to ask, for a project the size of the Silburys, I’d be inclined to stick with high quality plywood.
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Old 10th March 2019, 11:22 PM   #54
planet10 is online now planet10  Canada
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being in the USA I have to deal with inches.. ugh. So 3/4 " will be the thickness. Could you expand on the solid wood building guidelines?
Do not trust the label. Depīnding on where you are, 3/4 could be 18mm and 5/8 15mm. Windsor Plywood down the street does that.

Take a caliper and measure i†. Even 18mm will often be at least a few 10ths off.

dave
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Old 18th March 2019, 01:45 AM   #55
AudioGeek is offline AudioGeek  United States
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Got the Silbury plans... now to find some local baltic birch plywood.
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Old 20th March 2019, 06:30 PM   #56
Toetappin is offline Toetappin  United States
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"Forest Products" has BB ply if you still need some. They have reasonable prices and are located near 694 on hwy 61 south of White Bear Lake. It's the real stuff, not the cheaper, minimal ply, big box store product. They do alot of nice cabinetry and casework. You may want to call to check availible stock and sizes depending on your cut plans.
Good luck,
Marko
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Old 21st March 2019, 10:09 AM   #57
jimbro is offline jimbro  United States
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Another option is the castle “bipole” which has been shown to often be a better solution.

Dave, could you explain how the castle helps with bipole dip please? Hope the OP doesn't mind the aside.
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Old 21st March 2019, 08:43 PM   #58
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If reduces the difference in distance between drivers. The top driver placemtn means splash off the ceiling not the back wall making placement easier.

dave
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Old 10th April 2019, 02:01 PM   #59
AudioGeek is offline AudioGeek  United States
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An update: Still working to get an actual CAD file of Silbury to the CNC shop. I will probably use Forest Products as a source of the plywood.

As a side note: What does everyone use as simulation software for box construction, room gain etc?

Thanks!
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