Stuff for Nerds

Step file edit with Fusion360

Get this file:

Wanting to mount it however to this:
which has different mounting holes (47.5mm versus 52.5mm and, need to be for M4)


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Germanium Transistors

For the Aion FX Radian Germanium Boost diy kit

  • OC-44:
  • OC-125:

The Radian Germanium Boost is an adaptation of the Rangemaster Treble Booster produced by Dallas Musical Ltd. of London beginning in 1965. (Dallas would later merge with Arbiter Electronics to form Dallas-Arbiter, best known for the Fuzz Face.)

The Rangemaster was originally designed to add treble content to somewhat dark British amplifiers such as the Vox AC30, but it took on a life of its own in the hands of Brian May, Tony Iommi, Rory Gallagher, and several other highly-regarded guitarists of that era.

The original Rangemaster was not actually a pedal, but rather a freestanding unit that was intended to sit on top of the amplifier. Bypass was done via a slide switch on the front of the unit, so it wasn’t practical to turn it on and off while playing, and it was used as an always-on tone enhancer.

The Radian is a pedal conversion of the Rangemaster with one big enhancement: a voltage inverter has been added which allows it to be powered with a standard center-negative adapter while maintaining the positive-ground operation of the original. The PCB also includes a biasing trim pot so you can dial in a perfect bias without having to swap out resistors.

The other enhancement is a “Range” toggle switch that lets you choose between a treble boost, mid boost, or full-range boost. The treble-boost effect in this circuit is achieved by first cutting low frequencies, then boosting the whole signal so that the lows are restored to normal and the treble frequencies are emphasized. This toggle switch lowers the low-frequency cutoff point so that less of the signal is cut and more is boosted.

N5X British Overdrive amplifier part 2

I found a second hand Wide Body Mesa Boogie Mark IV combo housing and ordered a corresponding
Aluminum Chassis Mesa Width Style and got some special delivered chassis straps for it and put the DIY Ampmaker NX5 inside

combined with a B-Stock 12 inch 16Ohm Celestion G12H anniversary speaker
for now running with a Mesa 12AX7 and a JJ EL844 😄

One of its greatest features, is the Power pot, a VCB/VVR voltage control kit going from 256 Volts at maximum to 21 Volts at minimum (actual measurements), making overdriving the tubes by diming both Gain and Master pots a breeze, for tasty rock sounds in the living room.

It will pair up with my Marshall DSL-5CR

This was a fun and educational (9 months!) build !
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Keychron K5SE-D3

An ultra-slim full size wired/less mechanical keyboard

K5 SE optimizes finger travel and provides satisfying typing experience with the redesigned low profile switch is 40% slimmer than conventional switches. Keychron K5 SE ultra-slim Hot-swappable wireless mechanical keyboard Mac Windows iOS Android Ultra-slim body. Constructed with the streamlined and reinforced aluminum frame, K5 SE is ready to bring an unmatched and dedicated typing comfortability.

With just a slide of a button on the side panel, you can multitask without missing a beat by connecting the K5 SE with up to 3 devices via Bluetooth 5.1 and switch between your laptop, tablet and phone seamlessly. You can also connect the K5 SE to your computer with a type-c cable.

Two level adjustable rubber feet makes the K5 SE more comfortable to type on.

Compatible for both macOS and Windows. Keychron is one of only a few in the market that comes with a Mac multimedia keys layout for Mac enthusiasts.

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MIDI Reimagined

a next-gen MIDI controller
100 banks, more than 80 messages per switch, stackable messages, and flexible MIDI routing are just the beginning. The BRIDGE6 is a compact, next-gen MIDI foot controller with no compromises. A lightning fast ARM processor and plenty of storage means regular and ongoing firmware and feature updates.

Come out of the Dark Age
Connect everything – your gear, apps, and plugins – and control them exactly the way you want with RGB colour feedback and a high-contrast, easy-to-read display. White OLED graphical display and 12 RGB LEDs let you customise labels and text.

Control everything
Configure to your needs with our sleek, intuitive web editor. Export your layout, and use our huge device library to save you hours of setup time. Add wireless MIDI with CME WIDI devices.

Never lose track of time
With two independent MIDI clocks on board, LFOs sync’d to those clocks (or not), and the ability to turn the tempo into analog switch output, or pulse output, you really do have the best of all worlds.

Flexiport Magic
Two 1/4″ TRS jacks give you 12 options from MIDI Out (all TRS types) to Expression In, Aux Switch In, Sync Pulse Out, and our unique Device Link protocol for high-speed communication between PIRATE MIDI devices with Flexiports.

Community driven
Many of the awesome features we’ve implemented have been the result of lots of discussions with you – the one who actually uses the device! We continue to closely and personally interact and chat with anyone who wants to be a part of our community. You can suggest features, tweaks, report bugs, and give us ideas on how to improve your user experience.

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Corel Home & Student

“Please reconnect the device that has the file location, or choose a new folder. In the meantime, content will be saved in the Corel default location. You can move the content after the file location is restored” error message

the solution is rather simple, check this location in RegEdit:

These folders (yours may be named or located differently) need to be created (even if empty) in Windows Explorer and then the error message shows itself no more 🙂

Bozzle Tungsten Carbide Nozzle – 0.5mm

The Bozzle nozzle is the very first high flow (and lower back pressure) tungsten carbide nozzle for 3D printing applications.

Tungsten carbide nozzles are capable of printing all 3D printing filaments due to their exceptional hardness, ultra high operating temperature and high thermal conductivity.

0.5mm orifice
No inserts – constructed out of a solid piece of tungsten carbide there are no inserts here
Non stick surface finish
Significantly increased layer to layer adhesion at same printing temperatures vs hardened steel nozzles
Compatible with V6 and MK8 hotend heatblock

This nozzle requires hot tightening. Install the nozzle, heat hotend to 20c over desired use, and hand tighten with a 6mm or 1/4″ socket.

This nozzle will print every material.

Analog Man Prince of Tone overdrive


The POT is pretty much the same as half of the King of Tone, with an external MODE switch standard. It is the same as the KOT with HIGHER GAIN option, so you can use the full range of the DRIVE knob and it has a little more drive at the top than a normal gain KOT. The DISTORTION mode is improved though, for a louder, stronger distortion sound. See for more info.

Power Jack is standard on the POT –

The TREBLE trimpot is inside, just like the KOT.

There are also two new DIP switches inside! They are a bit subtle at some knob settings and modes:

DIP1 : LO-MID lift switch. The tone from your lower strings will be enhanced a little when DIP switch is ON.

DIP2: TURBO switch- with higher gain settings you’ll hear deeper compression, especially in DIST mode. You will hear a brighter, crunchier sound with this on at higher DRIVE settings when this DIP switch is ON.

The three modes, as on the KOT, are:

1) Normal Overdrive mode (OD mode): This is the standard King Of Tone sound, – a touch drive available than a tube screamer. Can get much louder than a tube screamer. The RED side of KOT has this setting from the factory.

2) CLEAN mode : This mode has less distortion, it can be used for clean boosts or clearer, louder sounds. It’s sort of a cross between a true clean boost and an overdrive. CLEAN MODE is even less compressed and louder than the OD mode. I love this mode with high drive settings too! The YELLOW side of KOT has this setting from the factory.

3) DISTORTION mode : more drive than the standard mode- a touch of hard distortion. The sound is more compressed, yet retains the pedal’s character. Same volume as OD mode.

At low DRIVE settings, or when playing softly, there is not much difference between the three modes, they all can get pretty clean and have the same level at low drive settings. The ability to clean up when playing softly is a very useful feature of this pedal. The Drive knob works like the KOT with HIGHER GAIN OPTION, so you can set it anywhere and get great tones.

The DRIVE knob taper is different than the KOT. It comes up faster and more linear, while KOT has a lot going on from 2:00 to max. So comparison to a KOT with HG option will not be the same at the same knob position unless it’s up all the way, where they are the same.

We are making these by hand in China by the same people who are making our Analog Delay. Though it’s made in China, we use the same parts as the King of Tone – best Japanese chip and capacitors, not cheap Chinese parts. No surface mount parts, NO ROBOTS, everything is vintage style and hand wired for easy maintenance and repairs unlike most Chinese pedals and most USA “boutique” machine-made pedals which are disposable if they have any problems like a pot, jack, or switch that wears out.

POWER SUPPLY: A Standard Boss PSA120 type 9V DC adapter will work fine. Center is negative. The pedal uses only about 6mA of current at 9V. You can get a fuzzier sound if you want, at lower voltages, for example the SAG mode on the pedalpower2. When your battery dies you will notice the pedal will not get nice and clean, the sound will be hairier. Use a good Alkaline battery or a power supply for best results. You can use higher voltage for more headroom, 12V is common, 18V is safe too. Clean boost may be improved the most with higher voltage.

CHIPS: You can also try other standard dual op-amp chips in the Prince of Tone. Just make sure you put it in the right way, with the pin#1 dot on the side with the chip socket cut-out. The TS-808’s JRC4558D chip sounds good in this pedal, especially with single coil guitars and smaller Fender type amps. You can try a high fidelity chip for the CLEAN mode which may work well.

We made our own case for this pedal, it’s lower and a little shorter than our Beano Boost / Orange Squeezer / large SunFace box, and a little bigger than the Astrotone / Peppermint / small Sunface size.
Size is 2.5″ wide x 4.5″ long x 1.5″ tall, not including switch/knobs/jacks.

Buffer option
If you run through some long cables to your amp, or through some tone sucking pedals (volume pedals, etc) you might want to add the optional buffer inside the POT. If you run the POT into a pedal with a good buffer like our ARDX20, then it’s not needed at all. There is no room for a battery with the Buffer option. The buffer will work great at higher voltages like 12V or 18V also. See our BUFFER page for more info.

Source: Analog Man Prince of Tone overdrive

Prusa Mini Bear +

I made an overview of all mods done to my Prusa Mini + 🙂
With lots of thanks to so many different people on Thingiverse and Printables

Prusa Mini+, mellow V6 alu cold block/heatsink, mellow brass heater block, mellow silicon heater block sock, E3D v6 Titanium heatbreak 1,75 mm (origineel), Bondtech CHT 0.4mm nozzle, LDO Orbiter 1.5 extruder, Weishuo 24V-10A-240W PSU, Raspberry Pi 3a, Argon1 FanHat, Raspberry Pi PSU 5.1V 2.5A MicroUSB, Prusa Stepper motor Z-axis, Misumi Linear bearings kit + superlube, AluX Bear mini 2040 extrusions, GT2x6 mm Kevlar-reinforced timing belt (2,5 meter), USB-USB-c kabel, wiring + plugs, printed parts, High Power MOSFET 30A, fans, PrintBay Heat bed insulation, buck converter

Replace basic Volume2, with bigger HDD

1- Remove disk on tray 1 (named Volume1 in this tutorial), reboot
2- Insert the new bigger disk in tray 1
2a- ‘secure erase’ new HDD, reboot
3- Convert volume2 to RAID1. (I’ve not selected SHR, but RAID1), reboot
4- Exchange disks in Tray2 and Tray1, reboot
5- Remove disk in Tray 1, reboot -> Degraded status
6- Issue

mdadm –grow –raid-devices=1 –force /dev/md2

7- Go to DSM Storage manager, HDD manage, you will have the option to extend volume 2 to get the full available space. Do this. Reboot
8- You must here have a Volume2 using the new hard disk, and with the full available space
9- Insert the previous disk Volume1
10- Here all should be fine, you should have Volume2 unchanged, but on your new HDD, with a whole available space

Three additional comments:
1. He replaced both disks (Basic Volumes 1 and 2) in his diskstation by running two times through the instructions by MathieuM68. Therefor he swapped the instructions on disks, volumes and trays accordingly. It works without problems and afterwards the system runs solid and with the same configuration like before, but with larger disk space of course 😉

2. In order to issue the command “mdadm” on the right RAID device (/dev/md?) I used

cat /proc/mdstat

which lists all available RAID devices.

3. He could not issue the command “mdadm” directly, but it works with

sudo mdadm –grow –raid-devices=1 –force /dev/mdX


Do you even orbit?

These 2 overviews above are wrong cause ‘they’ used orbit data -around the sun- to calculate how long a planet was in a gate or line, but the movement around the Rave Mandala wheel is an orbit -around Earth-.

So I did some calculations and came up with this:

Mercury as short as 358 days and as long as 405 days, on average 366 days.
Duration in one Gate: ~5.7 days
Duration in a Line: ~22.9 hours

Venus as short as 293 days and as long as 410 days, on average 369 days
Duration in one Gate: ~5.8 days
Duration in one Line: ~23.1 hours

Mars as short as 528 days and as long as 712 days, on average 679 days.
Duration in one Gate: ~11 days
Duration in one Line: ~42.4 hours

maybe 64Keys were right in their overview:

update mcu klipper on prusa mini

try mainsail.ip or mainsailos.local

putty into your Raspberry Pi:

cd ~/klipper/
make menuconfig

Enable extra low-level configuration options
STMicroelectronics STM32
Bootloader offset to 128KiB + 512 byte offset
Clock Reference to 12 MHz crystal
Communication interface to USB (on PA11/PA12)

close and save


switch off mini (only)
put on pin over 2 prongs on pcb buddy board
switch on mini

sudo service klipper stop
make flash FLASH_DEVICE=0483:df11
sudo service klipper start

switch off mini (only)
take off pin over 2 prongs on pcb buddy board
switch on mini

restart firmware in mainsail

Original Prusa Mini+ Bear mod

today, I finished the main modification of the printer (I only want to change the wires soon) so the whole frame is changed, the hot-end, extruder, heatbreak and nozzle, and all printed parts were PETG are now ASA, instead of a Cantilever design it is now an H-frame with double Z axles, so the frame gives rigidity and structure to the printing, yet still running the original Prusa firmware (with some added G-codes)

Rocket Transits Rippling Sun

Astronomy Picture of the Day

Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

2022 May 31

The featured image shows a Falon 9 rocket transiting in front of the Sun in mid May. The heat from the rocket's exhaust makes the Sun's outline appear to ripple. Please see the explanation for more detailed information.

Rocket Transits Rippling Sun
Image Credit & Copyright: Michael Cain
Explanation: The launch of a rocket at sunrise can result in unusual but intriguing images that feature both the rocket and the Sun. Such was the case last month when a SpaceX Falcon 9 rocket blasted off from NASA’s Kennedy Space Center carrying 53 more Starlink satellites into low Earth orbit. In the featured launch picture, the rocket’s exhaust plume glows beyond its projection onto the distant Sun, the rocket itself appears oddly jagged, and the Sun’s lower edge shows peculiar drip-like ripples. The physical cause of all of these effects is pockets of relatively hot or rarefied air deflecting sunlight less strongly than pockets relatively cool or compressed air: refraction. Unaware of the Earthly show, active sunspot region 3014 — on the upper left — slowly crosses the Sun.


Tomorrow’s picture: unexpected meteors 

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& Michigan Tech. U.

Boss ME-80 Guitar Multiple Effects

Hands-On Access To A World Of Great Tones
Mobile, battery powered, and filled with a diverse selection of flagship-quality BOSS amps and effects, the ME-80 is the ideal compact tone processor for performing guitarists. A friendly knob-based interface makes it simple to dial in great sounds in seconds, while easily selectable operation modes offer the flexibility of individual stompbox-style on/off or instant recall of complex multi-effects setups. Unique new footswitches deliver twice the control of previous designs for efficient and intuitive effects switching, patch selection, and real-time sound shaping while playing on stage. The free BOSS TONE STUDIO software unlocks even more tonal possibilities, providing a cool graphical interface for tweaking and organizing sounds on your computer, plus a web connection to BOSS TONE CENTRAL for direct access to free gig-ready patches created by top pro guitarists and much more.

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Slicer Flow Calibration

New heater block (Slice Engineering Copperhead), heater cartridge (Sidewinder X1 64Watts 24V), thermistor (E3D PT1000), nozzle (Micro Swiss M2 Hardened High Speed Steel Nozzle) and fan (Sunon MF40202V2-A99-A), doing some test printing and tuning via

Synology DS716+II

High-speed gegevensoverdracht en engine voor hardware-encryptie
Uitgerust met een quad-core processor en AES-NI hardware-encryptie, de DS716+II biedt razendsnelle bestandsoverdracht – ook voor versleutelde gegevens. Met Link Aggregation ingeschakeld, levert de DS716+II een gemiddelde lees- en schrijfsnelheid van respectievelijk 226.1 MB/s en 141.19 MB/s 1, terwijl de overdracht van versleutelde van bestanden aan een verbluffend vergelijkbaar niveau van prestaties wordt uitgevoerd, meer dan 226.09 MB/s lees- en 138.04 MB/s schrijfsnelheid. Dat betekent dat u uw gegevens kunt beveiligen zonder aan prestatie te moeten inboeten.

Dual LAN-poorten met storingsbeheer en ondersteuning voor Link Aggregation
Uitgerust met twee Ethernet-poorten met failover en ondersteuning voor Link Aggregation, de DS716+II zorgt voor een continue uptime van het netwerk, zelfs als er een storing op de LAN-verbinding van een poort voorvalt, waardoor de kans op storing en kostbare downtime worden vermeden. Link Aggregation verbetert de verbindingssnelheid die hoger is dan deze van een enkele netwerkkabel of poort.

Eenvoudige installatie en probleemloos onderhoud
Eenvoudige installatie en ondersteuning voor hot-swappable harde schijven zorgen voor een gemakkelijke onderhoud en continue werking als een harde schijf aan vervanging toe is. De DS716+II is uitgerust met een passieve koeling zodat deze niet afhankelijk is van een speciale koelventilator, wat cruciaal is bij een storing.

USB 3.0 en eSATA zorgen voor een snelle overdracht naar externe opslagmedia
De DS716+II beschikt over USB 3.0 en eSATA-poorten om verschillende soorten externe opslagapparaten te kunnen aansluiten, en tegelijkertijd snelle en efficiënte bestandsoverdrachtsnelheden te verzekeren. Ondersteuning voor USB 3.0 dat overdrachtsnelheden haalt tot 5 Gbps en 10 keer sneller is dan USB 2.0, wat betekent dat er heel wat minder tijd nodig is om gegevens over te dragen naar harde schijven en minder stroom wordt verbruikt.

4K Ultra HD video versleutelen
Voorzien van een hardware-versnelde transcodeer-engine, met de DS716+II kunt u H.264 4K / 1080p video’s transcoderen en streamen naar high-definition TV, digitale mediaspelers, mobiele apparaten en computers, zodat het afspelen van video’s gemakkelijk is zonder een speler van derden te installeren
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