Completed projects


The most interesting completed projects:

Unmanned tractor second prototype

Unmanned tractor second prototype

Based on experiences with the previous prototype, Hecada team developed 2017 spring and summer next unmanned tractor prototype. The aim was to improve modularity and performance.

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Unmanned tractor first prototype

Unmanned tractor first prototype

Eero is an autohor of hardware and prototype for an interesting tractor which was built in Hecada and has been developed in cooperation with Estonian University of Land Sciences. It is a small offroad vehicle, little bigger than ATV and it operates autonomously without driver.

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Diving lamp prototypes

Diving lamp prototypes

The range of diving lamps is very broad and they can be bought on different price levels and specifications. However, sometimes diving photographers need custom solutions. Prototypes designed and manufactured in Hecada are oriented for great lightning power, which of course needs clear water.

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Intake manifolds for small engines

Intake manifolds for small engines

Here are some photos about intake manifolds manufactured in Hecada. These are used on small 25 - 50 ccm internal combustion engines.

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Supercharger belt tensioning

Supercharger belt tensioning

Spring is coming soon and it is the last time to recondition my fast hobby car. Last summer there was a problem with tensioning the belt of a centrifugal supercharger.

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Fast gear change

Fast gear change

A manual transmission vehicle can be made faster also without changing the engine or transmissions. One way is simply to change gear more quickly. Every error in gear change will cost time. But alas, many older cars have plastic joint sockets and bushings totally worn out and loose.

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Instrument case

Instrument case

A fragile musical instrument is impossible to transport without a proper case. For this reason I have designed and constructed few cases. A case made of wood and plywood is very suitable for protecting an instrument against rain, hits and injuries and thereat it looks stylish.

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Device for manufacturing large containers

Device for manufacturing large containers

Lightweight and corrosion-resistant containers made of composite materials are used for collecting and keeping sewage, rainwater, fire water, fuel, chemicals etc.

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Bowed lyre

Bowed lyre

Bowed lyre or bowed harp is a violin like string instrument which is played with a bow. Melody is played on the first two strings and the rest two sound along continuously as a drone. This instrument, called Talharpa in Swedish, was brought along by Estonian Swedes to the island Vormsi.

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Belt drive for centrifugal supercharger

Belt drive for centrifugal supercharger

Paxton supercharger mounted on BMW M30B34 engine needed a non-slipping belt drive. The engine drives supercharger at its maximum allowed speed and pressure in 7000 rpm redline.

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