Building these DIY kits happens on your own risk. We can't do support or give a guarantee for correct function, because that depends on your own skills. Be responsible and check the building instructions before you buy. Thank you!
Antiphon is an analog monophonic synthesizer and features eight sine wave generators which can be adjusted in pitch by slider or CV. Checkout this video. The output volume of the oscillators can be adjusted using the rotary
knob and routed to the individual outputs. Outputs 7 and 8 can also be used as LFOs. The range goes from one minute to 10 kHz. 2 non-resonant filters are available for further processing of the
signal and can also be used for the external input. Even a guitar could be connected directly for interesting Lo-Fi effects. The included spring reverb by Belton is connected externally with 2
cables and gives the sound the extra shot of "Twang".
The Antiphon can easily be integrated into the Eurorack system or into the optional 42 TE Cardboard Case. Thus nothing stands in the way of its use as a desktop effect. Spring Reverb, Tremolo,
Ring Modulator / Bit Crush, Filter, Overdrive Reverb are some interesting possibilities.
Building instructions can be found here.
DIY level: complex but medium.
165,00 €
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The SWT16+ is a 16-track Eurorack step sequencer with up to 64 steps per track. The module makes it possible to create up to 8 different patterns which can stored in a total of 16 presets. Programmable like a classic TR machine, the SWT16 can be used not only for triggering drum sounds but also envelopes or other modulation sources. Here you'll find an introduction video and one video about the basics.
DIY level: medium. The assembly instruction PDF is here.
225,00 €
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Noisefoc is an experimental Oscillator, good for noise and Pan Sonic style buzz sounds. It's nice as a pure sound source or as a base for hihat and percussion sounds. Noisefoc is a great learning project. It is based around three CMOS NAND gates as oscillators, controlled by potentiometers and a light dependent resistor (LDR). There's an optical representation of the frequencies via LEDs, two mixing circuits (different sound via diode or resistor mixing) to mix the oscillators and a power starving function which makes the device completely out of control. The Eurorack version features a CV input for pitch influence via optocoupler.
The frontpanel was designed by Hannes Pasqualini / Papernoise.
DIY level: easy. No documentation needed, all parts are in labelled bags and there's a silkscreen printing on the PCB.
70,00 €
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VCO-1 (v1.4) is a purely analogue VCO (oscillator) for the modular Eurorack system. It can complemented by EXP-1 Expander module to add many functions like Sync, lin. FM, Wave Morphing, LFO etc. VCO-1 is temperature stable and provides a clean 1V/oct tracking over minimum 4 octaves. VCO-1 and EXP-1 are a powerful combination of modules with lots of instant fun! High quality parts, switches, pots and knobs, good feeling and big enough for comfortable everyday work, no fiddly controls. Check out the module on Modular Grid.
Here is a build video about VCO-1 and EXP-1 by Synth DIY guy. Very nice to watch before you build it, specially for beginners.
Controls:
Tuning (Coarse) ca. 20Hz - 20kHz
Tuning (Fine) ca. 8 half tones
Pulsewidthmodulation (PW)
Connectors:
1V/oct input for CV-controlled pitch
PWM input for CV-controlled pulsewidth
Pulse audio output
Saw audio output
Power consumption: +12V: 18mA -12V: 17mA. Width: 10 HP, depth 35mm. This kit has all the necessary parts to build, including front panel and power cable. Building instructions and manual can be downloaded here. The frontpanel was designed by Hannes Pasqualini / Papernoise.
DIY level: medium. After finishing it, the 1V/oct tracking has to be adjusted, what might need some experience.
95,00 €
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EXP-1 (v1.3) is an expander module for our analogue Eurorack oscillator VCO-1. It adds an LFO (bi-polar LED) with two waveforms (square, triangle) and various modulation targets, sync, lin. FM, wave morphing, an additional triangle output etc. Together with VCO-1 it is a complex oscillator with lots of internal or external modulation possibilities. Check out the module on Modular Grid.
Here is a build video about VCO-1 and EXP-1 by Synth DIY guy. Very nice to watch before you build it, specially for beginners.
Controls:
LFO Freq. ca. 0,01Hz - 200Hz
LFO Amt. (target via selector)
Lin FM (int. LFO / ext. signal)
Morph (int. offset / ext. CV)
LFO Shape (Saw / Square)
LFO Target (Morph / PW)
Morph Mode (Tri-Spare / Tri-Saw)
Connectors:
LFO Freq (ext. CV influences LFO Freq.)
Lin FM Input
Morph CV Input
Sync Input
LFO Output
Morphed Output
Triagle Output
Power consumption: +12V: 16mA -12V: 18mA. Width: 10 HP, depth 35mm. This kit has all the necessary parts to build, including front panel and power cable. Building instructions and manual can be downloaded here. The frontpanel was designed by Hannes Pasqualini / Papernoise.
DIY level: medium.
95,00 €
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Micrón is a full synthesizer voice in 8 HP including VCO, VCF, EG and Overdrive! This thing is insane!
VCO: 7 octaves, Hard Sync, Suboctave, Saw/PWM, FM modulation, Temperature compensated.
VCF with autoscillation, and cutoff cv attenuator.
E.G.: Fast fixed attack, release 80ms to 1s, connected by default to the attenuator of the Cutoff CV and VCA. And it’s automatically disconnected when an envelope or modulation
is connected to the VCA jack or the filter CV.
Width: 8 HP, Current Draw: + 51mA / – 41mA (+/-12v)
Here is a demo video. Building instructions and calibration video can be found here.
DIY level: medium.
159,00 €
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Descent is an analogue dual envelope generator. It provides 2 independent voltage controlled decay EGs. The envelopes can be switched between triggered or gated (sustain) mode. The first trigger input is normalized to the second one and each channel provides a LED to visualize the envelope signal. The shape of the envelope can be adjusted between lin/exp with a trimmer on the back of the PCB. Decay times are adjustable between a few ms up to several seconds. It comes as a complete kit with all needed parts to build it. That includes a multi colour aluminum frontpanel, high quality jacks and smooth 9mm metal pots.
Building instructions can be found here. DIY level: easy, medium.
95,00 €
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The TubeOhm SMR4P is a 10HP Eurorack Multimode VCF that combines the best features from two different filter circuits. The SMR4P design features the warm sound of the SMR4MkII filter alongside the 15 various filter shapes of the 4-Pole Mission VCF. This makes SMR4P a powerful ‘Swiss Army Knife’ filter, that can be switched between different filter types and slopes depending on your current need. This design also has some extra creative features, such as voltage-controlled switching between filter types, VC Cutoff Modulation, internal FM and a built-in VCA.
Building instructions can be found here. DIY level: advanced.
150,00 €
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An essential tool for DIYers! Test 3 is a tool for measuring voltages and currents in your Eurorack system. This means that just a single circuit board or module can now replace a convoluted test setup with multiple multimeters, custom cables etc. Two push buttons allow you to cycle the value shown on the LED display between three measurements (voltage, current and stored peak current) of the three power rails. The peak currents continually update in the background on all rails, making it ideal for quickly getting maximum current figures. Apart from measuring the current draw of a single module, Test 3 also supports testing power supplies and cables, measuring an entire system (up to 1 A of current on each rail), troubleshooting DIY modules, powering a skiff or breadboard from a larger system...
DIY level: easy. Building instructions can be found here.
95,00 €
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Algorhythmic sequencer - Limited Edition!
The White Gallop is the proud throttle companion of our good old Knight's Gallop. Less focussed on the euclidean side of the algorhythmic generation, the White Gallop provides more assymetrical and original patterns. This limited edition also received a handful new weapon : the auto-reset function which obviously reset the generated sequences after 8 or 16 steps. As the Knight's Gallop, this modules is endowed with the same modes and sub modes allowing utility, computational and randomish treatments of the patterns. Of course, we also kept our beloved dual and records modes. Same modus operandi for a totally different result, the White Gallop is a perfect tool for your trigger sequencers section.
Features
• Dual Output Trigger Generator
• Variable length sequences (up to 16 steps)
• Length and Pulse amount potentiometers and CV inputs
• Shift + & shift - buttons allowing to shift the sequence forward and backward
• Main mode (MN) providing a lot of utlity modes for the second output : reset, no shift, invert and reverse
• Compute mode (CP) calculating associated sequences for the second output delivering very musical polyrythms
• Random mode (RD) adding randomness on the second output sequence, 4 amounts of randomness determined by the sub mode
• Dual mode (DL) allowing to set the two outputs seperatly
• Record mode (RC) turning the Knight's Gallop into a “play your sequence on the buttons to record it” module
• Auto-Reset function which automatically resets the sequences after 8 or 16 steps
• Five different kind of tables for five different rythmic flavours : As Straight as Possible, Length minus Pulse, Accelerando, Decelerando & Fill Next
• Elektron style push buttons
• High quality metal potentiometers with double rubber injected knobs
• Skiff friendly (25mm deep)
• 8 HP Wide / 22mm deep
• Power consumption: 20mA @ +12V
DIY level: medium. Building instructions can be downloaded here.
135,00 €
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Basicaly, the Bishop's Miscellany is a dual stepped CV/Gate Recorder. It records two CV’s and two Gates on steps a bit like an analog shift register but with a lot more. First, plug in your CV/Gate keyboard, your MIDI interface, your ribbon, your joystick or your favorite CV/Gate controller and record a sequence. If you are too lazy to play something, you can even use the internal random generator to feed the inputs. Then, play the sequence and mangle it, it's that easy!
DIY level: medium/easy. Building instructions can be found on our info page.
160,00 €
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The Clock O’Pawn is a useful clock sourcing device that performs as your system’s true chef d’orchestre. Its transport section lets you start, stop, and reset connected instruments which are synchronised to an intuitive internal clock source or dancing along with your analogue and MIDI equipment. If you get bored by a metronomous clock, turn up the swing function and the maestro will lead with a nice shuffled feel!
Features
• Dual Output Clock Generator
• 4 different clock sources: BPM potentiometer, tap tempo, external clock in or MIDI in
• Reset output generating a reset trigger slightly preceeding the first clock signal
• Swing function, controlled by a potentiometer, swinging from slight groovy swang to triplets
• Ergonomic transport buttons allow the user to start, stop, pause and reset the module
• Second output providing a copy of the first output non affected by the swing, by the stop or by both
• MIDI to TRS adapter included (assembled & kit)
• User replaceable firmware chip
• Elektron style push buttons
• High quality metal potentiometer with double rubber injected knob
• Skiff friendly (25mm deep)
• 6 HP Wide
• Power consumption 10mA @ +12V
DIY level: medium. Building instructions can be found on our info page.
125,00 €
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Penrose is a very nice CV quantizer DIY kit for the eurorack format. It takes an incoming continuous CV voltage and converts it to the nearest note in a scale. Active notes can be selected with the 12 buttons. You can use it to tune the output of your analog sequencer, as a semi random melody generator, for fast chiptune arpeggios and much more. It comes as a complete kit with all needed parts to build it. That includes a multi colour aluminum frontpanel, high quality jacks and illuminated bi-color push buttons. The project is open source, so the schematic and source code is available.
Specs:
Building instructions, more infos and demos can be found here.
DIY level: easy/medium.
95,00 €
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Mal-2 is a random signal generator mainly intended as CV modulation source. It has 2 modes of operation to provide you with smooth random goodness. Imagine Eris herself lends you a third hand to keep your patches interesting. 1) In the first mode the CHANGE knob morphs from a cubic interpolated (sine like shaped) random signal to a random walk function that could make a wallstreet broker delirious with joy. 2) In the second mode the CHANGE knob sets the self similarity. On the minimum setting the signal is completely random. On the maximum setting the random sequence is locked to a repeating, identical 8 step sequence. In between the sequence seamlessly morphs to new shapes over time. This gives you a random CV where you can shape the bounds in which the chaos unfolds and goes far beyond a slew limited white noise.
Specs:
Building instructions, more infos and demos can be found here.
DIY level: easy/medium.
95,00 €
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The u3A (v1) is a three channel attenuverter DIY kit for the 1U Intellijel format. Useful for scale, add offset, invert or sum signals. As each input is normalled to +5V, with nothing plugged into the jacks, each knob controls a voltage range from -5V to +5V. Each output is also summed to the adjacent channel on the right when no cable is connected.
Specs:
Building instructions can be found here.
DIY level: easy, contains some few bigger SMD parts.
59,00 €
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The u2X is a dual buffered multiple DIY kit for the 1U Intellijel format. With bicolor leds for monitoring signals. Each input is copied into three outputs. As the top section is normalled to the bottom section it’s also possible to get 6 copies of the same signal.
Specs:
Building instructions can be found here.
DIY level: easy, contains some few bigger SMD parts.
35,00 €
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The 2M is a dual three channel mixer in 6 HP with volume controls over all the inputs as well as the final output. As its design has been specially focused on audio applications, the input potentiometers are audio-taper type while the output ones are linear. Low distortion / high quality audio operational amplifiers have been selected in order to achieve clean audio mixing, but is also DC-coupled, so it can perform CV signal mixing as well. Great for a small system, allowing for submixes or even stereo mixing.
Specs:
Building instructions can be found here.
DIY level: easy/medium.
95,00 €
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The 8S is an 8 step sequencer in 8 HP with control over parameters of the sequence as reset, hold, random step and direction. It’s been designed to work with clock related signals like triggers or gates but any type of CV signals can be used at its inputs. The output signal path is completely analog and its range can be set as unipolar (0 to +5 volts) or bipolar (-5 to +5 volts) via jumper on the back.
Specs:
Building instructions can be found here.
DIY level: easy/medium.
110,00 €
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The 1F is a voltage controlled switch, intended to be ‘one friend’ for your sequencer. Its design has been specially focused on working with sequences, by giving them some randomness, applying transpositions or constant variation over time. For this, 0.1% tolerance resistors have been used to achieve exact unitary gains for precision summing of the v/oct signals. More detailed info on the demo video.
Specs:
Building instructions can be found here.
DIY level: easy.
70,00 €
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The 4R is a quad random voltage generator in 2HP. It generates two different random stepped voltages per input, each time a rising edge is sensed at TRIG1 or TRIG2. The inputs are independent so they can work at different clock speeds. As TRIG2 is normalled to TRIG1 it is also possible to get 4 random values with just one trigger. The voltage range of each pair of outputs can be set as unipolar (0V to +5V) or bipolar (-5V to +5V).
Specs: 2HP, 50 mm depth, Power Consumption: 50mA +12V; 30mA -12V
Building instructions can be found here. All SMD parts pre-populated.
DIY level: easy.
70,00 €
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This small board is designed for you to easily power your breadboard with the common Eurorack voltages – directly from the bus in your case. The kit includes the PCB and all the parts necessary to supply voltages of -12V, + 12V and + 5V into your breadboard and it is possible to power the board from a 10 or 16 pin ribbon cable. In addition to reverse polarity protection diodes and power filtering capacitors, a point of connection to ground has been also added to solder a terminal to connect an oscilloscope or multimeter.
DIY level: easy. Use the pics as reference as there is no assembly manual.
10,50 €
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Four oscillator sound generator. Extensive modulation between all VCOs. Hz/V CV input.
It's rather complex build consisting of roughly 150 parts, so prepare for 2 hours of soldering. And hopefully you will enjoy playing it just as much as assembling it. This is four-oscillator cross-modulation drone sound generator, that can also play nice and polite sounds, even controled via external Hz/V signal. But that's not why it was made for. There are 4 identical VCOs, each producing 3 waveforms that can be separately mixed to audio output and to modulation matrix. Each VCO can frequency modulate all other 3 VCOs, so you can expect wild and crazy sounds coming out of it. Demo video is here on YouTube.
DIY level: medium. Assembly manual can be downloaded here.
63,00 €
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The perfect solution for midifying small analogue synths or gadgets due to small dimensions: 17x12x4mm. The PCB itself comes assembled. Midi input, one pair of CV/Gate outputs, V/Oct scale only, stable scale over four octaves, MIDI-learn button and configuration via Sys-Ex. Made by Midi-Hardware.com. We also offer a full kit, including box and all you need to build a full standalone interface with a small budget. Power supply available separately here. Please check detailed info and instructions before you buy, they can be found here.
DIY level: easy. The PCB itself comes assembled, only a few cables to solder.
36,00 €
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This is the die-hard approach to power distribution or call it busboard for Eurorack modular. Made to prove that even such a simple component can be made with care for every detail. This is no teeny-weeny bus board with itsy-bitsy traces that can't handle real currents. There's a lot of copper used on top and bottom sides of PCB to minimize resistance to insane levels. It uses 125 micron copper, that is almost 4 times thicker than good quality PCBs. The PCB itself is also thicker (2mm) and it's not so likely to bend. This is all you need to go along with nice and clean linear power supply, but if your case is powered by switching power supplies like popular MeanWell bricks, it's good idea to add one or two Noise Killer Plugs (NKP) that will clean most of the high frequency noise. NKP does not take any pin header as it's pass-thru device, there's still 18 power ports available for modules even with 18 NKPs in place (although it makes no sense to insert more than 4). Power input uses heavy duty M4 screw terminals, no need to crimp any kind of connectors when wiring power supply, just strip the wire. It's also easy to chain, as the terminals easy accept 2 wires. Each busboard is fully tested on each connector at 3A current per rail.
Why is it so important to have low GND resistance? Imagine there are few modules plugged in, drawing considerably high currents. This combined current causes voltage drop on busboard traces. For example if your GND trace has 0.1 ohm, which seems pretty low, and there is about 500mA flowing to GND rail (not so much really for one row of modules), then you get 50mV offset created between different power connectors. And since every CV is referenced to GND, that means every module on the busboard will be affected with a voltage that means almost a semitone in 1V/oct scale. Power in old modulars was distributed in star-ground fasion to avoid that, but never in eurorack. POWDIS power distribution board comes to the rescue with the extreme 1 miliohm resistance measured from GND power terminal screw to the most distant 16-pin power connectors. This is even lower than resistance of single pin-plug connection. As a comparison, typical module power cable of 1ft length can have about 50-80 miliohms DC resitance per wire, that goes down to 8-13 miliohms when all 6 wires are used for GND.
You can download a PDF as a drilling template for your case here.
43,00 €
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SOON AVAILABLE AGAIN! Our converter is a top solution for:
All that mess is cleaned up!
Our converter uses 12V (DC) -+20% on the input and generates a stabilized, very clean 9V +-1% of 150mA at the output side. It also is save against wrong polarity on the input, overpower save due a self resetting fuse. It works with all of our 12V DC power supplies.
DIY level: easy. The PCB itself is assembled, only a few cables to solder.
5,00 €
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We developed this module to power modules like our TR-808 Kick or single Eurorack modules by a standard power supply. It uses 12V to 18V (DC) on the input and generates a symmetrical output of +/-12V (1W) at the output side. It also is save against wrong polarity on the input, overpower save due a self resetting fuse. It's a top solution for any DIY project that needs symmetrical power. A more powerful version is also planned. We also offer a power supply for it.
DIY level: easy. The PCB itself is assembled, only a few cables to solder.
15,00 €
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Math & Rythm! Two outputs and five different rhythmic flavors multiply by a load of “algo-rhythmic” processing to result in a practically infinite number of polyrhythms. That’s the fundamental formula that produces the Knight's Gallop principle : a dual trigger generator providing sequences according to tables and modes.
DIY level: medium. Building instructions can be found on our info page.
135,00 €
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Dual Velocity Voltage Controlled Amplifier
The VVCA is an analog dual linear VCA can be used for audio and CV signals. The VVCA features two individual VCA’s. Each VCA behaves just like any other normal VCA when there is no cable
connected to the velocity input. The velocity input offers velocity control over the CV input level, which means: The output level can be controlled by CV and Velocity.
Width: 4HP, power consumption: +12V (15mA), -12V (15mA), 5V (10mA)
Here is a demo video. Building instructions can be found here. DIY kit includes all parts.
DIY level: easy
82,00 €
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Pro Out is a line output module with VUmeter and balanced outs
Converts syntheziser level signals to balanced and professional line level (+4dBu, 6.3mm), and also at the consumer line level(-10dBv, stereo 3,5mm) in which it’s possible to connect your
headphones.
2 Chanels with VUmeter per channel.
When the led marked as 0dB turns on, all line outputs are at their standard level.
The Vumeter can operate in bar or dot mode. Dot mode allows much lower consumption.
Width: 6HP, depth: 40mm, power consumption: BAR: 140mA with all leds on / DOT : 28mA
Building instructions, demo and calibration video can be found here and here is a demo video.
DIY level: medium
92,00 €
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The OBF is a simple yet useful LFO capable of producing a variety of waveforms with a frequency range of 40 Hz to over 40 seconds per cycle. Using the "Skew" control, Saw,
Triangle, Ramp, and PWM are easily attainable, while a pulse set to the OBF's sync input resets the LFO to -5V, the low point in its cycle. It's a full DIY kit.
Width: 4 HP, Current Draw: +13mA / – 13mA (+/- 12v)
Building instructions, demo and calibration video can be found here.
DIY level: easy.
47,00 €
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The Time Wizard got a bag full of arcane time-warping tricks. All his magical feats are based on 6 dividers with selectable division factors and 4 switches providing 81 routing variations. This module's occult powers have been harnessed to easily clock and reset other sequencers with odd time signatures, provide weird clock division/multiplication ratios, and create complex poly-rhythms.
DIY level: medium/easy. Building instructions can be found on our info page.
115,00 €
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Lil' Erebus is an inexpensive and great sounding Eurorack synth voice incl. Midi and Echo effect. It's not the world's most temperature stabile VCO but it has a lots of potential and a brilliant price/performance ratio. It's a no-brainer. The DIY kit is complex but no special parts or techniques needed, basically very easy.
Building instructions can be found here. For
calibration watch this video. DIY level:
medium.
159,00 €
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Exploding Shed - DIY kits, modules & parts
Based in Leipzig, Germany
Shipping to Germany & EU, no USA
www.exploding-shed.com | shop@exploding-shed.com