In eurorack modular systems the modules are mounted to the rails. The length of these rails is typically standardized to HP widths (1 HP = 5.04mm). Note that eurorack rails typically use M3 screws while the industry standard in Germany is M2.5. (Note: "Rails" is ambigous. In an elctronic context it can also mean your supply voltages. In our case: ±12V. So if somebody says: connect the opamp to the rails, they don't mean you should connect them to the case, but to ±12V. If some signal "hits the rails" this means the signal's voltage is higher (or lower) than ±12V and gets clipped).
In eurorack modular systems the modules are mounted to the rails. The length of these rails is typically standardized to HP widths (1 HP = 5.04mm). Note that eurorack rails typically use M3 screws while the industry standard in Germany is M2.5.
Note that in addition to the (two) rails you will need:
- screws that fit the nuts
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@@ -10,3 +10,6 @@ Note that in addition to the (two) rails you will need:
## Sources
- BGT ("Baugruppenträger") on reichelt. For example [this](https://www.reichelt.de/Baugruppentraeger/BGT-GB-29L/3/index.html?ACTION=3&LA=446&ARTICLE=50387&GROUPID=7756&artnr=BGT+GB+29L&SEARCH=bgt)
- Stefan Burbulla of Clicks & Clocks sells already assembled rails/frames. Have a look [here](http://clicksclocks.de/20170114_ClicksClocks_price_list_web.pdf). You have to order by mail.
(Note: "Rails" is ambigous. In an elctronic context it can also mean your supply voltages. In our case: ±12V. So if somebody says: _connect the opamp to the rails_, they don't mean you should connect them to the case, but to ±12V. If some signal _hits the rails_ this means the signal's voltage is higher (or lower) than ±12V and gets clipped).
