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projekte:matecrate:start [21.01.2019 21:20] a3x |
projekte:matecrate:start [22.05.2020 02:40] (aktuell) Bandie ↷ Seite von projekte:matecrate nach projekte:matecrate:start verschoben und umbenannt |
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We decided to use wood for the main frame supported by some aluminum elements. We started with a rectangular plate and cut out everything which did not fit into the mate crate. | We decided to use wood for the main frame supported by some aluminum elements. We started with a rectangular plate and cut out everything which did not fit into the mate crate. | ||
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The support consists of a 40mm x 3mm aluminum bar, screwed onto the main board. | The support consists of a 40mm x 3mm aluminum bar, screwed onto the main board. | ||
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To attach the Mate-crate to the chassis, we first glued another wooden board onto the two short, inner sides of the crate (i.e. front and back side), to prevent the screws from sticking | To attach the Mate-crate to the chassis, we first glued another wooden board onto the two short, inner sides of the crate (i.e. front and back side), to prevent the screws from sticking | ||
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The connection between chassis and crate is accomplished with four angle brackets, which allow a fast and easy dismount of the chassis for eventual repairs. | The connection between chassis and crate is accomplished with four angle brackets, which allow a fast and easy dismount of the chassis for eventual repairs. | ||
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The next step was to fit all the required electronics into the crate (or, to be precise, think of a concept how to store them safely, because we already knew that they would fit if you just toss them in). | The next step was to fit all the required electronics into the crate (or, to be precise, think of a concept how to store them safely, because we already knew that they would fit if you just toss them in). | ||
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The harness for our daisy-chain is a row of XT-60 sockets mounted to the chassis ending in a XT-90 anti-spark plug. (The anti-spark plug has two contact points, the one you would reach first when plugging it in has an internal resistor to limit the current. This is helpful when connecting the battery pack to the VESCs as their capacitor-bays act like a short-circuit when empty, which would normally cause a large spark and contact corrosion. Once the plug is fully inserted, the second contact points provides the normal characteristics of the XT-90 plug.) | The harness for our daisy-chain is a row of XT-60 sockets mounted to the chassis ending in a XT-90 anti-spark plug. (The anti-spark plug has two contact points, the one you would reach first when plugging it in has an internal resistor to limit the current. This is helpful when connecting the battery pack to the VESCs as their capacitor-bays act like a short-circuit when empty, which would normally cause a large spark and contact corrosion. Once the plug is fully inserted, the second contact points provides the normal characteristics of the XT-90 plug.) | ||
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===== Size and Weight ===== | ===== Size and Weight ===== | ||
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* standard Club-Mate crate with 2.5cm clearance at the bottom | * standard Club-Mate crate with 2.5cm clearance at the bottom | ||
* round about 10 kg | * round about 10 kg |