Search found 146 matches

by Mike Conner
Mon Apr 23, 2018 6:25 pm
Forum: Flat-Top Acoustic Guitars and Bass Guitars
Topic: Reverse Kerfing
Replies: 8
Views: 6041

Re: Reverse Kerfing

I lightly dampen the "web" with distilled water (to avoid any chance for discoloration) and that has greatly reduced the breakage. Warming it on the bending iron has helped also. //mike
by Mike Conner
Tue Apr 10, 2018 9:54 am
Forum: Glues and Finishes
Topic: Finishing with Enduro-Var Water Based Urethane - Detailed Method
Replies: 15
Views: 18416

Re: Finishing with Enduro-Var Water Based Urethane - Detailed Method

Pete, Also, as time has gone by I still wonder whether sticking with dry sanding would be better. I have been assuming that after 10 days the finish is cured enough to not be affected by a little water on the surface to lubricate the sanding and reduce loading on the sandpaper. It has been some time...
by Mike Conner
Mon Apr 09, 2018 9:06 pm
Forum: Glues and Finishes
Topic: Finishing with Enduro-Var Water Based Urethane - Detailed Method
Replies: 15
Views: 18416

Re: Finishing with Enduro-Var Water Based Urethane - Detailed Method

Pete, Hard to say exactly what may be the issue. I haven't seen any cloudiness that lasted more than a day or so. I do think that if the finish doesn't release all of the water content then "blushing" can be trapped in the layers. The finish is cloudy in the can and has dried quite clear for me with...
by Mike Conner
Thu Mar 15, 2018 9:16 am
Forum: Glues and Finishes
Topic: Finishing with Enduro-Var Water Based Urethane - Detailed Method
Replies: 15
Views: 18416

Re: Finishing with Enduro-Var Water Based Urethane - Detailed Method

Thanks, Pete
However, using naptha would definitely get me away from the waterborne, explosive vapor free environment that has been my goal ;-)
by Mike Conner
Thu Feb 01, 2018 2:20 pm
Forum: Glues and Finishes
Topic: Sand-through with water borne lacquer
Replies: 31
Views: 28127

Re: Sand-through with water borne lacquer

Mike, you say: As Gordon says, the 400 grit sand is to knock down higher spots or brush strokes, and take care of any runs. With dry sanding and light pressure you can see where the high spots are getting sanding, and I try not to sand past when everthing looks dull. Do you mean that between coats ...
by Mike Conner
Wed Jan 24, 2018 7:49 pm
Forum: Glues and Finishes
Topic: Sand-through with water borne lacquer
Replies: 31
Views: 28127

Re: Sand-through with water borne lacquer

Steve, I haven't thinned the finish to date. I'm willing to live with a few more evident brush marks because the application is so simple and uses the minimum amount of finish. I have a really good Turbinaire HVLP and have had good success with waterborne poly on furniture, but have so far not wante...
by Mike Conner
Wed Jan 24, 2018 7:32 am
Forum: Glues and Finishes
Topic: Sand-through with water borne lacquer
Replies: 31
Views: 28127

Re: Sand-through with water borne lacquer

Yep, what Gordon says tracks with what I do. Not sure about GF you are using, but the EnduroVar sands to a nice talc-like powder and really doesn't load too bad. Rinsing the paper by dunking in a bowl of water keeps the paper fresher, and I pat dry on a paper towel before returning to sanding. For m...
by Mike Conner
Tue Jan 23, 2018 8:54 pm
Forum: Glues and Finishes
Topic: Sand-through with water borne lacquer
Replies: 31
Views: 28127

Re: Sand-through with water borne lacquer

Steve, Based on my experience with waterborne EnduroVar, it could be the wet sanding contributed to "local" softening of the partially cured intermediate coats of finish. I've been essentially dry sanding, using a bowl of slightly soapy water to rinse off the dust from the sandpaper and a damp micro...
by Mike Conner
Sat Jan 06, 2018 9:36 am
Forum: Archtop Guitars and Bass Guitars
Topic: Best neck pickup location
Replies: 6
Views: 5406

Re: Best neck pickup location

Greg, In my first archtops I used neck mounted Vintage Vibe mini-humbuckers with adjustable pole pieces. All are 25" scale. The first was a 20 fret neck, resulting in the pole pieces at about the 21st fret position. The second was a 22 fret neck, so the poles closer to the bridge. In both cases I he...
by Mike Conner
Tue Aug 22, 2017 8:43 am
Forum: Flat-Top Acoustic Guitars and Bass Guitars
Topic: Fret Crown Profile
Replies: 6
Views: 5277

Re: Fret Crown Profile

Stephen, As a fellow engineer, I appreciate your efforts towards precision. However, over 4 decades I have found that an intense level of effort in fret crowning and related details, etc just doesn't pay off in terms the practical nature of the end result - we are going to push strings down onto fre...
by Mike Conner
Wed Jul 19, 2017 11:12 am
Forum: Archtop Guitars and Bass Guitars
Topic: Acoustic Archtop
Replies: 10
Views: 7647

Re: Acoustic Archtop

Ed, I'm getting output equivalent to a magnetic pickup using JJB 220 piezo's (essentially the same as K&K) mounted in my X-braced 16" archtop and 14.5" octave mandolins as shown: B042 - Pickup Elements installed.jpg The JJB is encapsulated somehow and gives a nice warm tone glued directly to the top...
by Mike Conner
Fri Jul 14, 2017 12:43 pm
Forum: Flat-Top Acoustic Guitars and Bass Guitars
Topic: Grellier OM Bracing Pattern
Replies: 18
Views: 12732

Re: Grellier OM Bracing Pattern

I'm sure you are probably getting this already, but just build. You are sweating details you won't even be able to evaluate whether they made any difference... . Eric, Randolph's comments are good in that the best thing to do is just go ahead and build. You will make mistakes and then work through ...
by Mike Conner
Thu Jun 08, 2017 6:07 am
Forum: Glues and Finishes
Topic: Finishing critique
Replies: 12
Views: 7980

Re: Finishing critique

Steve, My experience with Endurovar confirms that waiting 5 to 7 days for level sanding and buffing is needed to allow the finish to fully cure and shrink, and some of that finish shrinkage may be transport of the water absorbed into the wood surface. I level and rough buff at 5 days, then finish bu...
by Mike Conner
Wed May 03, 2017 2:50 pm
Forum: Give-aways
Topic: May giveaway, Big Red Book of American Lutherie, Vol 7 (closed)
Replies: 22
Views: 20645

Re: May giveaway, Big Red Book of American Lutherie, Vol 7 (open)

I'm in, and I'll cover cost of shipping it to me if successful!
by Mike Conner
Sun Apr 30, 2017 6:30 am
Forum: Glues and Finishes
Topic: General Finishes Waterbase Topcoat - SM is pushing this - anyone tried it?
Replies: 230
Views: 187251

Re: General Finishes Waterbase Topcoat - SM is pushing this - anyone tried it?

Pete, I use Englemann spruce for front plates, which can be pretty light or white in color, and curly red maple for necks and bodies, which can have a pink or gray look unfinished. I use a very light wash of Transtint Honey Amber dye on most of my builds so far and that warms up the look.
//mike
by Mike Conner
Tue Apr 04, 2017 7:07 pm
Forum: Archtop Guitars and Bass Guitars
Topic: Best practice dovetail neck joint
Replies: 21
Views: 14978

Re: Best practice dovetail neck joint

Brian, The details of my dovetail joint method are in my Journal. The jigs were pretty easy to make, and I made quite a few dummy necks and joints until I was happy with the fit. For convenience I use a standard 3/4" dovetail router bit and guide collar, and designed the length of the tenon, etc fro...
by Mike Conner
Thu Mar 09, 2017 5:31 pm
Forum: The Soundhole
Topic: I like it!
Replies: 8
Views: 10601

Re: I like it!

Ryan, I would have clicked on the "Thanks" or "Like" button, but wait, we don't have one :lol: Mandolin Cafe has the "Thanks" feature, and I do find that worthwhile in that the "Thanks" identifies the user name giving you that thumbs up without cluttering the thread with a short comment. Not that th...
by Mike Conner
Tue Jan 31, 2017 12:20 pm
Forum: Archtop Guitars and Bass Guitars
Topic: It's red!
Replies: 17
Views: 14000

Re: It's red!

That really looks cool, no wait, Hot!
If it's going to be red, I'd say the over the top red you have chosen really makes a statement.

Looks like a bolt on neck. Do you install with a long hex wrench?

Great job!