Same system without basterry on top.Notice the speed is faster.
The stop at both ends of travel is adjusted bt where the 2 scres are placed and the amont of fluid used,no presure cut off system is needed and thats the beuty of this esy to make and very cheap system.
It is not only for masts but a hole host of things from doors,cleats,retracting landing gear,manipulators,platforms anything that needs a mechanical means to be operated and not just syringes but pnematic sylinders work as well as long as the inlet size is not smaller than 1/8 inch.
Travel can be infinatly adjusted and multiple cylinders can be used,even the counter cylinder can be substituted for a resvoir or open system where water from the pond is used to operate the cylinder a filter must be used .
Parts are in this particular setup is 2 ,30cm syringes that have a niple not a bayonet for the needle ,large silicone tubbing ,mini gear pump I can supply and any inexpensive ESC .
Dave
why wierd ,just hydraulics?
aqwater 1 year ago