Search found 2687 matches

by David King
Sat Oct 24, 2020 4:14 pm
Forum: Glues and Finishes
Topic: Can you etch chrome plated metal
Replies: 4
Views: 132

Re: Can you etch chrome plated metal

Its easier to etch nickel plating and you can do that with ferrous sulfide PCB etchant that you used to be able to buy at Radio Shack. I would dilute it 4:1 with water and apply with a q-tip or disposable brush. At full strength it will strip the nickel in no time. For chrome the traditional strippe...
by David King
Mon Oct 12, 2020 2:36 pm
Forum: Flat-Top Acoustic Guitars and Bass Guitars
Topic: Epoxy as a pore filler
Replies: 18
Views: 961

Re: Epoxy as a pore filler

One thing I'll point out about epoxy filler which hasn't been mentioned in the thread is that it has a propensity to swell up out of pores during final buffing on high speed buffers (600 RPM +) and then shrink back down into the pores and pulling the finish down with it. The effect is identical to t...
by David King
Mon Sep 28, 2020 1:32 am
Forum: Jam Session
Topic: Particle counters?
Replies: 10
Views: 370

Re: Particle counters?

See if you can find a used Dylos to track down your sources once and remedy them but better yet spend that money of better filtration for your whole house. Lennox has a pretty impressive unit that's HEPA rated and comes with other bells and whistles including a UVA light that activates some catalyst...
by David King
Mon Sep 28, 2020 1:22 am
Forum: Jam Session
Topic: Downdraft table - suction?
Replies: 7
Views: 518

Re: Downdraft table - suction?

I built mine twenty five years ago using a smallish 1/5hp squirrel cage blower from Granger. It's relatively quiet and moves a LOT of air for the Amps. The problem is that that air is very concentrated and moving at a high velocity at the output and you need the diffuse that and spread it around to ...
by David King
Fri Sep 25, 2020 3:03 pm
Forum: Jam Session
Topic: Particle counters?
Replies: 10
Views: 370

Re: Particle counters?

Barry, Thanks for chiming in here, so in essence .01 or .03 are what we need to measure? I wonder why PM2.5 became the de facto reference?
I take it that once particles get lodged in the alveoli they won't ever come out and can then cause all kinds of trouble in time.
by David King
Fri Sep 25, 2020 2:36 am
Forum: Jam Session
Topic: Particle counters?
Replies: 10
Views: 370

Re: Particle counters?

I just got an inexpensive unit from an outfit called Temtop that measures PM2.5 and PM10 plus humidity and temperature in Centigrade. It was $60 postage paid and came in a couple of days from California. https://temtopus.com/products/temtop-lkc-20t-high-accuracy-air-quality-monitor-pm2-5-pm10-temper...
by David King
Wed Sep 16, 2020 1:20 pm
Forum: Electronics
Topic: Pickup Magnet Charging Question
Replies: 8
Views: 720

Re: Pickup Magnet Charging Question

Andrew, I don't know the answer but it's an interesting question. What I can say is that your values are typical and your charging set up seems to be saturating the alnico mags effectively. Pulling or sliding bar magnets through the charging aperture will tend to slant the field in a chevron pattern...
by David King
Wed Aug 26, 2020 1:25 am
Forum: Solid-Body and Chambered or Semi-Solid Electric Guitars and Bass Guitars
Topic: A different look for maple fingerboards?
Replies: 4
Views: 430

Re: A different look for maple fingerboards?

You might look at wood that's a bit harder and more stable than maple if you can source it. Shagbark hickory, black locust, and iron wood are all pretty common in the Northeast. The Southwest has mesquite and the Northwest has mountain mahogany but that's getting pretty rare now. Midwest is all abou...
by David King
Wed Aug 26, 2020 1:16 am
Forum: Tools and Jigs
Topic: Ideas Wanted for Cross-Notching Aluminum Rod
Replies: 12
Views: 1022

Re: Ideas Wanted for Cross-Notching Aluminum Rod

That's some finely crafted pieces of ebony there Alan.
by David King
Tue Aug 25, 2020 7:33 pm
Forum: Tools and Jigs
Topic: Replacing bandsaw tires on Delta 14".
Replies: 2
Views: 281

Replacing bandsaw tires on Delta 14".

My old urethane Sulphur Grove bandsaw tires suddenly started walking out from under the blade and causing a smokey ruckus after 20+ years of service. I was surprised to see that they had become all stretched out and had to be replaced. The only ones available locally were from Jet (PN 100025) and th...
by David King
Sat Jul 25, 2020 7:16 pm
Forum: Glues and Finishes
Topic: Hide glue as a violin ground?
Replies: 5
Views: 3125

Re: Hide glue as a violin ground?

Water glass seems to be a popular ingredient for a ground.
by David King
Sat Jul 25, 2020 7:14 pm
Forum: Tools and Jigs
Topic: oscillating multi-tool saw...
Replies: 4
Views: 652

Re: oscillating multi-tool saw...

I got the Fein tool back when it was just a detail sander and before anyone had figured out the blade attachments and their utility. It's a TERRIBLE sander and I stuck it back in the box for 20 years until I put it up on CL and started a bidding war. The guy that bought it explained to me that he di...
by David King
Sat Jul 25, 2020 6:58 pm
Forum: Tools and Jigs
Topic: Adding a Metalworking Lathe into Sawdust-Ville
Replies: 7
Views: 902

Re: Adding a Metalworking Lathe into Sawdust-Ville

Barry, There are myriad carbide grades, coatings and geometries for every type of metal and alloy. Inserts like these are highly polished to leave the best possible surface finish and they are very sharp with a fairly steep rake and clearance angles. They do fine with light cuts on mild steel but wo...
by David King
Wed Jul 22, 2020 9:07 pm
Forum: Jam Session
Topic: Comet
Replies: 4
Views: 895

Re: Comet

Wish we could get some dark sky nights in the city but apparently everyone in charge hates that idea.
by David King
Wed Jul 22, 2020 8:18 pm
Forum: Tools and Jigs
Topic: Adding a Metalworking Lathe into Sawdust-Ville
Replies: 7
Views: 902

Re: Adding a Metalworking Lathe into Sawdust-Ville

I have a 9x20 lathe that's been in the shop for 25 years at least. I use the same Vactra #2 way oil as my mill takes and that's been no problem since it's a very thin layer. Wood dust isn't going to affect the ways other than to wick off all the oil so you'll want to keep the oil can handy. I have v...
by David King
Wed Jun 03, 2020 12:24 pm
Forum: Glues and Finishes
Topic: Neck Laminations and Glue choice
Replies: 23
Views: 4947

Re: Neck Laminations and Glue choice

Barry, whenever there's a perceived vacuum of information something else will inevitably be drawn in to fill the void. I'm afraid we all do that even when good reliable information is readily available at our fingertips. See every story in the news today for fine examples of this.<g>
by David King
Sun May 24, 2020 2:17 am
Forum: Glues and Finishes
Topic: Neck Laminations and Glue choice
Replies: 23
Views: 4947

Re: Neck Laminations and Glue choice

I have several hundred bass necks out there laminated with both titebond I and II and never had an issue with any of them. I can't say as much for the few that I used epoxy on. I do like polyurethane glue but it's not as strong as titebond which makes it handy for fingerboards which you might want t...
by David King
Tue May 19, 2020 4:50 pm
Forum: Bowed Stringed Instruments and Bows
Topic: Double bass neck - restoration and refinish.
Replies: 5
Views: 1980

Re: Double bass neck - restoration and refinish.

At David Gage's bass shop in NYC back in the 1980s I noticed that they used a regular sheet of 1/8" glass and broke off little pieces to make scrapers.
by David King
Tue May 19, 2020 4:44 pm
Forum: Solid-Body and Chambered or Semi-Solid Electric Guitars and Bass Guitars
Topic: Bass string length
Replies: 6
Views: 1457

Re: Bass string length

My rule is to try my best to build an instrument that can handle vanilla flavored string sets from the mom and pop music store. As a result I always try to use the larger, 1/2" diameter string post tuners in case some of the winding arrives past the post so to speak. On a short scale instrument I ei...
by David King
Fri May 15, 2020 1:21 am
Forum: Solid-Body and Chambered or Semi-Solid Electric Guitars and Bass Guitars
Topic: Bass string length
Replies: 6
Views: 1457

Re: Bass string length

As you say either will work but you might want to consider the longer length if you want to be able to string the bass through the back of the body which can change the sound a bit according to some.