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Old 02-21-2014, 09:24 AM
  #58  
Jgwright
 
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Originally Posted by Roy Hanouka
Hi John,

Thanks to you and Mik for showing such a simple and reliable hydraulic system.

A quick question regarding the drilling of the Robart cylinder: did you use a 3mm thread or a 5mm thread for the 4mm Festo connector? I assume it's quite critical as a 3mm thread may restrict the flow but I may be wrong?

Many thanks again.

Roy
Roy

I would use a Festo 4mm fitting with a 5mm thread if there is room, if not use the Festo 4mm fitting with the 3mm thread. The hole through the thread is only short so does not affect the flow too much. On my retracts I used one with a M3 thread and one with a M5 thread on each cylinder. The key thing is to use 4mm tube.

John