- #1
nikita_physicf
- 2
- 0
There are several parts to this effort.
Bond paper roll being stretched between 2 paper feeders on wheel bearings
Precision positioning of the roll to a coordinate system devised for that roll That is if the paper roll is 35 meters long or 35'000 mm and 914.4mm wide I could choose a point on that roll say x=10567(where x=1 is 1mm offset) and have that point moved to a centre point between the two roll holders
Imagine the distance between the two rolls increased significantly and the first roll of paper tuck in or be held on the second spindle/shaft... The idea is to be able to roll back and forth from the left roll to the right so as to achieve a precise positioning to a specific portion within the roll. The position requested by choosing a point on the entire roll i.e. 3'500 mm(3 metres and 50 cm) on x and have that be scrolled right in the centre between the 2 rolls. So if the distance between the 2 roll holders is 2 metres The point on the roll of 3'500mm should be positioned to the middle point which is a point spaced 1 metre from either scrolls.
When I lay out the entire paper roll the surface gets the dimensions of about 35metres and 914mm.
I have:
Arduino compatible board
Raspberry pi
Laptop (Ubuntu Linux)
I need ideas on the shaft , bearings and precision positioning of the paper through rotary or linear encoders etc...
Bond paper roll being stretched between 2 paper feeders on wheel bearings
Precision positioning of the roll to a coordinate system devised for that roll That is if the paper roll is 35 meters long or 35'000 mm and 914.4mm wide I could choose a point on that roll say x=10567(where x=1 is 1mm offset) and have that point moved to a centre point between the two roll holders
Imagine the distance between the two rolls increased significantly and the first roll of paper tuck in or be held on the second spindle/shaft... The idea is to be able to roll back and forth from the left roll to the right so as to achieve a precise positioning to a specific portion within the roll. The position requested by choosing a point on the entire roll i.e. 3'500 mm(3 metres and 50 cm) on x and have that be scrolled right in the centre between the 2 rolls. So if the distance between the 2 roll holders is 2 metres The point on the roll of 3'500mm should be positioned to the middle point which is a point spaced 1 metre from either scrolls.
When I lay out the entire paper roll the surface gets the dimensions of about 35metres and 914mm.
I have:
Arduino compatible board
Raspberry pi
Laptop (Ubuntu Linux)
I need ideas on the shaft , bearings and precision positioning of the paper through rotary or linear encoders etc...