2 sticky pistons sacked ontop of each other when they push up it's fine when they retract the first block comes down one block and the block ontop of that stays the same.
Attachments
Comments 5

Your double piston extender does not look quite right. Read this section to build a working one. Note that you need to increase the delay of repeaters to work around MCPE-15607.
Your double piston extender does not look quite right. Read this section to build a working one. Note that you need to increase the delay of repeaters to work around MCPE-15607.
Your double piston extender does not look quite right. Read this section to build a working one. Note that you need to increase the delay of repeaters to work around MCPE-15607.