I created dispenser system that will dispense lava when i click button and then suck it up, when i press it again. But they only dispense lava, but don't suck it in. I used a lot of redstone repeaters to expand redstone signal. I didn't use observers.
These screenshots are nearly useless. Not even showing where/how the dispensers are arranged.
But assuming you got a row of 18 dispensers, what you need is:
If there is room, put a line of redstone directly on top of your dispensers. If the dispensers are in a wall and can't have space above them, then you put a repeater behind each dispenser and run a line of redstone behind those repeaters.
Now put a single repeater going into that line of redstone somewhere in the middle. Run a single line of redstone from your button to this repeater, renewing the signal as necessary with repeaters along the line. Something like below, where D is dispenser, V and < shows repeaters and their direction, + is redstone dust.
++++++++++++++++++<+++++++++++++++B
+
V
++++++++++++++++++
VVVVVVVVVVVVVVVVVV
DDDDDDDDDDDDDDDDDD
If you power the grid from the sides you can have dispensers over the whole area (not that that's needed) and you don't need very many repeaters.
You can't tell from the screenshot but the whole grid _is_ powered, even the one dispenser that I placed.
--
Oh, I guess dispensers work just fine as long as the block next to them is powered, so dispensers under the repeaters would be powered through the dispensers before and after the repeaters so there's no reason not to power them from the end of the grid. (As long as you avoid the loops.)
So you should be able to leave out most of the repeaters in that design as well, just don't fill in the gaps with redstone dust.
I created dispenser system that will dispense lava when i click button and then suck it up, when i press it again. But they only dispense lava, but don't suck it in. I used a lot of redstone repeaters to expand redstone signal. I didn't use observers.
Version - 1.16.5
Screenshots:
https://ibb.co/gSQRKn3
https://ibb.co/vJsrQyx
https://ibb.co/jyjhs6j
All repeaters are powering themselves, that's a fundamental part of Redstone.
These screenshots are nearly useless. Not even showing where/how the dispensers are arranged.
But assuming you got a row of 18 dispensers, what you need is:
If there is room, put a line of redstone directly on top of your dispensers. If the dispensers are in a wall and can't have space above them, then you put a repeater behind each dispenser and run a line of redstone behind those repeaters.
Now put a single repeater going into that line of redstone somewhere in the middle. Run a single line of redstone from your button to this repeater, renewing the signal as necessary with repeaters along the line. Something like below, where D is dispenser, V and < shows repeaters and their direction, + is redstone dust.
Just turn all the repeaters so they face the same direction and if you leave gaps in a row of repeaters don't put redstone dust between them.
That way there won't be any loops where the power can get back from the repeaters outputs to the inputs and keep them powered.
(I can see the dispensers! They're under the redstone dust.)
Just testing.
If you power the grid from the sides you can have dispensers over the whole area (not that that's needed) and you don't need very many repeaters.
You can't tell from the screenshot but the whole grid _is_ powered, even the one dispenser that I placed.
--
Oh, I guess dispensers work just fine as long as the block next to them is powered, so dispensers under the repeaters would be powered through the dispensers before and after the repeaters so there's no reason not to power them from the end of the grid. (As long as you avoid the loops.)
So you should be able to leave out most of the repeaters in that design as well, just don't fill in the gaps with redstone dust.
Just testing.
Thank you all so so so much. Now i actually finished it and it works. Ty