Search found 15 matches

by mak009
Mon Jul 04, 2022 6:48 am
Forum: Instrument Builders Forum
Topic: Spanish heel cutaway
Replies: 1
Views: 2130

Spanish heel cutaway

Hi

Anyone know of detailed plans/sketches of how the spanish heel works with a cutaway? What I'm asking is how to mate the cutaway curve into the spanish heel block.
A close look at commercial guitars shows various techniques using filler strips etc.

Thanks in advance

mak
by mak009
Sun Oct 24, 2021 9:23 pm
Forum: Instrument Builders Forum
Topic: Odd frequency spectrum
Replies: 7
Views: 5963

Re: Odd frequency spectrum

I'm working on a simple model that says the rolling moment around the bridge is the issue that needs resisting. I've laminated the primary falcates (tho' they aren't CF reinforced at the moment_ But they are extremely resistant to longituidanal forces. Also- I probably should have installed the brid...
by mak009
Sun Oct 24, 2021 9:19 pm
Forum: Instrument Builders Forum
Topic: Odd frequency spectrum
Replies: 7
Views: 5963

Re: Odd frequency spectrum

Martin,
No the books were knocked back by local library so-I admit-I'm cobbling info together.
Falcate2.jpg.pdf
(88.54 KiB) Downloaded 254 times
by mak009
Sun Oct 24, 2021 11:48 am
Forum: Instrument Builders Forum
Topic: Bandsaw recommendations
Replies: 20
Views: 21663

Re: Bandsaw recommendations

I should add a safety caveat- 16mm is oversize for the machine. As I see it the worst that could happen is the blade comes of the pulley. As long as the doors are closed this should be ok.
But-stuff happens...........
by mak009
Sun Oct 24, 2021 10:05 am
Forum: Instrument Builders Forum
Topic: Bandsaw recommendations
Replies: 20
Views: 21663

Re: Bandsaw recommendations

Hi- a bit late but the following might be useful I too have a Hafco BP255. With the stock 12.5mm blade I found it useless on anything other than thin ply-the blade wanders regardless of tension settings. So I got a local shop to weld up a 16mm/.9mm 4tpi German steel blade. It does overhang the pulle...
by mak009
Sun Oct 24, 2021 9:57 am
Forum: Instrument Builders Forum
Topic: Odd frequency spectrum
Replies: 7
Views: 5963

Odd frequency spectrum

Hi, This is a first crack at a falcate braced top (yep-it needs cleaning up) So I tap tested it out of interest and a strong 57hz spike showed up which isn't present on other acoustics I have. I get that they are fully built and rigid but can anyone explain the low frequency spike? Top glued.jpg Spe...
by mak009
Sat Jul 24, 2021 5:55 pm
Forum: Instrument Builders Forum
Topic: Hiding a repair
Replies: 11
Views: 11645

Re: Hiding a repair

Thanks Steve for the reply.
Yeh I blundered into that one.
All I initially wanted to do was put a decorative strive down the neck(Never again)
Thanks for all the great feedback
Mak009
by mak009
Sat Jul 24, 2021 5:41 pm
Forum: Instrument Builders Forum
Topic: Hiding a repair
Replies: 11
Views: 11645

Re: Hiding a repair

mmh- now I think about it- I may have answered my own question.
by mak009
Sat Jul 24, 2021 5:12 pm
Forum: Instrument Builders Forum
Topic: Hiding a repair
Replies: 11
Views: 11645

Re: Hiding a repair

Thanks Martin,
Are you suggesting that because experience tells you it's easier to hide a dark inlay than light? As in- the glue lines don't stand out?

chrs
by mak009
Sat Jul 24, 2021 3:35 pm
Forum: Instrument Builders Forum
Topic: Hiding a repair
Replies: 11
Views: 11645

Re: Hiding a repair

Sorry-previous image didn't load.
Longer shot of neck1.jpg
Longer shot of neck1.jpg (135.26 KiB) Viewed 11637 times
by mak009
Sat Jul 24, 2021 3:32 pm
Forum: Instrument Builders Forum
Topic: Hiding a repair
Replies: 11
Views: 11645

Re: Hiding a repair

Sure. The bleach is actually starting to work but it also bleaches the surrounding timber which probably compounds the issue.

chrs

Mak009
by mak009
Sat Jul 24, 2021 2:03 pm
Forum: Instrument Builders Forum
Topic: Hiding a repair
Replies: 11
Views: 11645

Hiding a repair

Hi, Does anyone have a tip on hiding a glue line around an inserted 'plug' repair short of 'spraying it out" with tint? I had to insert a filler in a new neck blank to try and fix the dark/light wood boundary but no matter how tightly I cut the insert and tapped it into the slot the glue line won't ...
by mak009
Fri Jul 23, 2021 7:11 am
Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
Topic: Falcate brace template
Replies: 4
Views: 11600

Re: Falcate brace template

Thanks Dave M
by mak009
Thu Jul 22, 2021 2:54 pm
Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
Topic: Falcate brace template
Replies: 4
Views: 11600

Re: Falcate brace template

Thanks for the reply-that helps.

chrs

Mak009
by mak009
Thu Jul 22, 2021 9:22 am
Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
Topic: Falcate brace template
Replies: 4
Views: 11600

Falcate brace template

Hi, I'm still waiting for the "Design" and "Build" books to come in. I'm building a '000' size Sassafras SS. Are the falcate curves critical or can they be 'approximated' from the various images floating about? There seems a lot of discussion about the CF subject but not much about the actual curves...