# Cheap, fast, small footprint

Dimesions: 5x6 floor, 6 tall

SU required: 992 (248rpm) or 1024 (256rpm) (2 Large water wheels)

Possible clearance: 250 (expandable) x ~2000 (rectangle shape)

Automatically returns after clearing a row

Features
- Automatic repeating mode
- "oneshot" mode/early return (requires brass, alternatively just turn on automatic mode then stop)

Early game friendly (uses minimal almost no b

note: this build is orientation dependent. if you build your orientation in survival chances are it will break. please build the correct orientation in your creative world first (mirrored builds work fine as long as gantry is in same direction)

you can additionally make this build without a rotational speed controller and target 256 rpm, but this will make some gaps after 30ish blocks. Otherwise use exactly 248 rpm

# Rationale

A quarry has 4 major cycles

- Moving to site
- Lowering drill
- Returning drill
- Moving to deposit

Thus, it is possible to encode all 4 states using toggle latches (T flipflops) and trigger state with an observer pointing at a redstone link

# Building

Although I have included the schematic, it is important to know how to build it as setting up the correct state is important

there are 3 total variables that you have to track

- input rotation
- gantry shaft rotation
- build orientation (determines rope pulley mechanism)

if input is clockwise, use left hand shaft

if input is counter-clockwise, use right hand shaft

If the gantry shaft expanding direction is

- +x or -z, use repeater

- -x or +z, toggle latch

button and pulse repeater component is not required, it is just for quality of life

# Please post questions in comments