The Hub

Hello All I have been using Ted Bergstrand's online nut calculator on Benchmuse.com which is excellent. It allows you to have a consistent gap between each strings vs the progressive gap that the Stewmac rule gives you. Or you can do consistent centers to the strings. I have definitely found measuring the nut with calipers to work a lot better than the stewmac rule and don't use the rule anymore. I wanted some additional functionality…

Sadowsky use unique control plate screws which are much smaller than common plate screws. I believe the ones they use are: #3 × 3/8" Phillips Pan(domed) Head Black Oxide csk self tapping Sheet Metal Screw Type AB thread. Being in the UK, these are really hard to find, pretty much don’t exist here, so can anyone please help me or point me in the direction of a supplier? I’ve contacted Sadowsky direct with no response and also many of my main…

Let me start with this; I'm trying to find the root cause of difficult fret wire installation of two different SM fret wires. I've spent a lot of time gathering dimensions and experimenting with techniques wich could cause the problem. I enlisted the help of a colleague who arrived at a similar poor performance. His solution was to glue the fret ends/ beat the frets in. My "rather" is to find the root cause so I don't have to go thr…

Dialled in the Beta, much further. Now at v1.1.0 Echoing Christopher Alexander’s argument in the first half of “Notes on the Synthesis of Form” here. Parametric, Semi-Lattice Structures. Centres within Centres, interacting to form the whole. A living structure. Because of the dimension of time, and feature hierarchy, and methodology we end up with a Centre Oriented Semi-lattice Hyper-graph, or COSH for short. This will be available on the…

HEy FOlks. Ive Been using a really old timer and reostat control, with a separate thermometer, on my heat blanket set up for a while. Its worked, but id like to be a bit more mindless about it if possible. Does anyone have suggestions for heat blanket controllers that have a digital readout and built in temp control sensor?

Greetings fellow Looths! I recently received a request from a customer to replicate Kurt Cobains 59 Martin, starting with a Sigma DM3. I have pasted the customers email to me below. While I have been a looth hobbyist for many years, I just recently opened my official business, Finger Lakes Guitar Works, and am just getting off the ground and a good flow of repair work is already coming in. While I feel 100% confident in my abilities to…

Hi everyone, I'm Martino from Hub of Acoustics, a collaborative project created by luthiers for luthiers. Our goal is to explore and teach acoustic principles that are directly relevant to instrument making. In 2026, we’ll be running four courses in different parts of the world, all focused on giving luthiers practical tools to better understand and control the acoustics of their instruments. We’re excited to introduce our very…

It's that time of the year when I start to get all paranoid on the humidity levels of my shop. It happens at this time as the heating seems to send my hygrometers out of whack and it's quite difficult to keep things stable. So far i've been relying on keeping a 45% constant humidity in an automated system I built on Domoticz (similar to Home Assistant), which control a humidifier and dehumidifier. I'm not that confident i got this nailed…

So, like an idiot, I got well into the installation of an Anthem pickup system when I realized that the soundhole braces on this guitar are effing Lincoln Logs. They're easily a quarter inch thick (and feel like basswood). Because the Anthem preamp is designed to straddle the soundhole brace, I can't fit it as-is. Anybody got any experience with this? OPTIONS THE CLIENT WOULD NEVER GO FOR (and wouldn't thrill me either): 1. Replace the bra…

Hello, I am building a bass VI for a customer. As with a Fender Bass VI he wants a control plate with 4 slide switches. 1 on/off switch for each of the 3 pickups, but with the 4the switch he wants to control the phase of the middle pickup. Any suggestions as how I should wire that? thanks!