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Frugel-Horn Mk3 Builds & Build Questions
Frugel-Horn Mk3 Builds & Build Questions
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Old 26th February 2012, 04:32 AM   #601
planet10 is offline planet10  Canada
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Frugel-Horn Mk3 Builds & Build Questions
Updated Frugel-Horn Mk3 planset

http://p10hifi.net/tlinespeakers/FH/...1v0-250212.pdf

dave
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Old 27th February 2012, 01:18 PM   #602
dustinsterk is offline dustinsterk
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Thanks for the update! Does anyone have these new plans in DWG/electronic format for input into a CNC router? Thanks!
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Old 27th February 2012, 02:37 PM   #603
jonparkhurst is offline jonparkhurst  United States
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No, not in a CNC yet, but when you are doing transposing them to a cnc , please post them for the rest of us...
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Old 27th February 2012, 07:02 PM   #604
rinthesun is offline rinthesun  United States
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Default Sealing inside enclosure

I generally seal the inside of my cabinets with Bulleye Sealcoat, thin shellac. This hardens the wood surface and I wonder if it will effect the acoustic properties of the Mk3.
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Old 27th February 2012, 07:29 PM   #605
planet10 is offline planet10  Canada
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Quote:
Originally Posted by dustinsterk View Post
Thanks for the update! Does anyone have these new plans in DWG/electronic format for input into a CNC router? Thanks!
On request i can supply -- and have done -- DWG or DXF of any specific page. Do note that unless you have a 5-axis CNC, a CNC is only useful for doing the sides and the baffle rebates.

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Old 27th February 2012, 07:32 PM   #606
planet10 is offline planet10  Canada
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Frugel-Horn Mk3 Builds & Build Questions
Quote:
Originally Posted by rinthesun View Post
I generally seal the inside of my cabinets with Bulleye Sealcoat, thin shellac. This hardens the wood surface and I wonder if it will effect the acoustic properties of the Mk3.
It can only work to stiffen the panels and improve things. It won't make MDF as good as plywood.

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Old 27th February 2012, 08:10 PM   #607
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Quote:
Originally Posted by planet10 View Post
On request i can supply -- and have done -- DWG or DXF of any specific page. Do note that unless you have a 5-axis CNC, a CNC is only useful for doing the sides and the baffle rebates.

dave

Dave - Dustin is planning on using 3/4" Plyboo, which is a true 3/4" ( 19.05mm) - I've sketched out a nested pattern for CNC machining, which includes orientation of parts for grain pattern matching. It includes oversize cutting for final sizing of the 4 parts that each require the bevel to at least one end. (the only internal part that doesn't is highlight in turquoise)

There'll still be offcuts for cutting boards etc.
Attached Files
File Type: pdf FH3-19.PDF (8.5 KB, 521 views)
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Old 27th February 2012, 11:17 PM   #608
rinthesun is offline rinthesun  United States
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Default Felt to use

From discussions within this forum, I gather that damping felt should be soft. I am looking at post #65

Frugel-Horn Mk3 flat-paks


McMaster has 8845K253 which is F26. Check it out at

McMaster-Carr

or McMaster-Carr and enter 8845K253.
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Old 29th February 2012, 01:10 AM   #609
rinthesun is offline rinthesun  United States
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Sorry, my post #608 was a question. Will that felt work or should it be denser?
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Old 29th February 2012, 02:18 AM   #610
planet10 is offline planet10  Canada
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Frugel-Horn Mk3 Builds & Build Questions
Lokely domething between the Soft & UltraSoft would be suitable, without some in my hand i couldn't tell you which would be most suitable.

I could mail out some traveling samples

Given what the stuff costs from McMaster you might as well just buy the UltraTouch cotton felt from Bob @ CSS ($10 for a 12" x 47.5" chunk... good for FH3 & a couple other projects.

dave
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