DIY Eurorack: Side Panels 3U and 6U

This is actually a simple exercise but if you are not a handyman and have the right tools it might get annoying. This is why I am trying to organise a groupbuy for this side panels.

This is what it is all about. A prototype of a 3U side panel for fixing the rails on a rack (still missing the drillings for fixing). Sure, you can fix the rails directly on the rack, but using the panels is way more elegant.

Eurorack Sidepanels 3HE with Module
Sidepanels 3HE with Module

You will find more details on Muffwiggler or on the German Sequencer Forum. If you have questions just leave a comment or send an email

DIY Eurorack: Building a 19 inch Rackmount Case

Assembling a 19 inch case is not rocket science but it has some pitfalls. Especially when you buy the components from eBay or different vendors.

Before you start be aware that there is no standard, not all components from all manufacturers fit together. This post should give you an overview of the components you will need. The construction is based on the Doepfer A-100G6 rackmount cases. The parts of my construction are a mix of Roger and Gie-Tec parts as well as my own power supply (PSU) and busboards.
I can provide you with a complete DIY set for your case or just some parts, just ask for pricing.

ClicksClocks 19 inch Eurorack - Complete Case
19 inch Eurorack – Complete Case

Not to get confused, some rack systems use rails with M2.5 threaded strips. You will hardly fit M3 strips in these rails. Please also notice that my rack uses side panels which are already combined with the rack ears as one part. This is usually not the case.
Some rails use M4 threads instead of M5 for the side fixing. The parts of the list below fit perfectly together.

There is also some mechanical work that needs to be done, drilling holes to fit the PSU on the rear panel and filing a big hole to fit in the mains inlet and fuse holder also on the rear panel. But this is it.

List of mechanical rack parts with order numbers from Gie-Tec as of May 2013

  • 4 pcs. 138006 – Rack ears 3HE
  • 2 pcs. 138010 – Side panels 6U
  • 8 pcs. 125010 0432 – Rails type 1, non perforated, l=432mm, 85HP
  • 2 pcs. 125021 0432 – Rails type 2, perforated, l=432mm, 85HP
  • 4 pcs. 138049 – M3 Threaded strips
  • 2 pcs. 138124 – Top and Bottom cover, perforated (222,3×431,7×1,5mm)
  • 2 pcs. 138087 0001 – Rear panels, 3HE/85TE
  • 20 pcs. 490050 1206 – M5x20 Allen screws, DIN 6912
  • 28 pcs. 499530 0006 – M3 Square sliding nuts, DIN 562
  • 32 pcs. 493030 0066 – M3x6 Pan head screws, DIN 7985/ISO 7045
  • 5 pcs. M3 Thooth Lock Washers

What really confused me when I started to build my first 19 inch rack was the width of the rails. To build a 19 inch rack with a usable width of 84HP (ca. 427 mm, exact 426.72 mm) you will need 85HP (432 mm, exact 431.8 mm) rails. The rack ears need 2,54 mm space on each side of the rack, as you can see on the following picture.

Rack ears and rails
Standard z-rail with rack ear, extending into the rail by 2.5mm

The busboards will be screwed on the two perforated rails using pan head screws, thooth look washers and square sliding nuts. Don’t worry, the part that is connected to the rail does not carry any contacts. So no risk of short circuit.

List of electrical components

  • 1 pcs. IEC 320 Mains inlet with fuse holder and switch
  • 5 Fully Insulated Receptacles, 6.3 mm
  • 10 Fully Insulated Receptacles, 4.8 mm
  • 5 Insulated Fork Cable Lug
  • 1 Micro Fuse, 230V – 400mA, time lag or slow blow
  • 1m PVC Cabel for internal wiring, H05V-K or H07V-K, green-yellow
  • 1m PVC Cabel for internal wiring, H05V-K or H07V-K, black or brown
  • 1m PVC Cabel for internal wiring, H05V-K or H07V-K, blue
  • 1 IEC 320 Mains Cable


If you have questions feel free to contact me.

TECHNICAL DISCLAIMER: Please be aware that the power supply carries mains voltage (115 or 230 V AC). According to the safety rules the installation has to be done by qualified personnel only. Please keep that in mind: Danger to Life!
This is a private blog, and it is about sharing experiences. No warranty at all.

DIY Eurorack Console Case – Rear and Bottom Panels

This was a major step. Today I got the bottom and rear panels bended. Two main parts of my case construction, which I couldn’t do on my own.

The idea of the case construction is to fix the rear and bottom panels with threaded rods between to wooden side wings. Next up I have to drill several holes to fix the busboards and and PSUs on the panels. The hole for mains inlet with switch and fuse holder needs to be routed. Once the metal work is done the panels will be powder-coated.

Some sketches of the case to visualize the construction. The other main components of the construction are the wooden side wings. These need to be drilled, routed and sanded before they finally get an oil finish. That’s the rough plan for the next weeks.

Some pictures of panels:

If you want to read the full story, here are all the posts:

DIY Eurorack – Case bundle and 19 inch rack stuff

All you need to build your own Eurorack case

Ever thought about building your own modular synth case? Here you may find the basic components. Just ask for pricing and shipping conditions.

Basic set to start your own case project:
1 Clicks and Clocks PSU, +/-12 V/1200 mA, 230 V or 115 V
2 Clicks and Clocks Busboards plus cables for connection with the PSU
4 Z-Rails, 84HP length, plus sliding nuts (threaded strips optional) and screws to fix the rails

Basic set to build your own Eurorack modular synth case
Basic set to build your own Eurorack modular synth case

Set for a 19 inch/3U rack frame:
2 rails, 85HP length (84HP when mounted with the rack ears)
2 rack ears, 3U
2 threaded strips

DIY Eurorack 19 inch case set
DIY Eurorack – 19 inch case set

Some detailed images

DIY Eurorack 19 inch case M3 threaded strip
M3 threaded strip

DIY Eurorack 19 inch case rack ear
Rack ear, 3U height
DIY Eurorack 19 inch case rail detail
Rail detail, 84HP

TECHNICAL DISCLAIMER: Please be aware that the power supply carries mains voltage (115 or 230 V AC). According to the safety rules the installation has to be done by qualified personnel only. Please keep that in mind: Danger to Life!
This is a private blog, and it is about sharing experiences. No warranty at all.

DIY Eurorack: Spannungsversorgung (PSU) und Busboards

Interessanterweise bekomme ich die meisten Anfragen aus dem Ausland. Das freut mich natürlich, gleichzeitig wundert es mich aber auch. Liegt das vielleicht nur daran, dass ich hier überwiegend in Englisch poste? Deshalb mal wieder was auf Deutsch. – English version

Hier ein paar Bilder der Clicks and Clocks Eurorack Spannungsversorgung (PSU) und der Busboards. Zu Beginn wollte ich eigentlich nur ein pultartiges Case für meinen Eurorack-Modularsynthesizer bauen. Da ich mindestens vier Spannungsversorgungen benötigte, dachte ich von anfang an über eine eigene Lösung nach Doepfer-Vorbild nach. Ich weiß, dass es günstige Schaltnetzteile gibt, aber mich reizte die Aufgabe und ich wollte Erfahrungen sammeln.
Es war klar, dass ich einige überzählige Spannungsversorgungen und Busboards haben werde. Wer dran interessiert ist und Preise und Versandkosten erfahren möchte, schickt mir bitte eine E-Mail

ClicksClocks – Spannungsversorgung (PSU) 1
ClicksClocks – Spannungsversorgung (PSU) 2
ClicksClocks – Spannungsversorgung (PSU) Unterseite
ClicksClocks – Busboards
ClicksClocks – Busboard 5V Option
ClicksClocks Bundle – 2 Busboards und 1 PSU

TECHNISCHER HINWEIS: Bitte sei Dir darüber bewusst, dass das Netzteil Netzspannung führt (115 or 230 V AC). Aus Sicherheitsgründen darf die Installation nur von Fachpersonal durchgeführt werden. ACHTUNG: Bei unsachgemäßer Handhabung besteht Lebensgefahr!
Dies ist ein privater Blog, es geht darum Wissen zu teilen. Keine Garantie und Haftung.