Hi,
Building and designing my printer from the beginning (but not electronics and firmware). Will attach som pictures as the printer takes shape further on. Have recently build a carriage (printer head) with integrated Z-probe that works well. I use the nozzle as probe and ball bearing as a stable pivot. Microswitch for leveling works without problems. Will probably end up at thingiverse later on.
But one question that will affect the design is my choice of lengths for horizontal upper and lower beams. On my attached picture I have a glass bed of 300mm in diameter and there is 200mm from the center of each tower to the middle of the round glass. Rods are 275mm between center of ballheads.
If I put the nozzle far out on the glass plate the beam at tower A becomes almost vertial and the rods at tower B and C are nearly horizontal. Will this become a problem?
Should I put longer horisontal beams at the bottom and top of my printer to make the distance between towers and center bigger? I suppose that the carriage at tower A in this position only keep the printer head parallel to the glass plate and that the carriages of tower B and C is making the motion toward or away from tower A. (at the attached position of printer head)?
The closer the printerhead is to a tower the less force in XY-direction can be produced from that tower but on the other hand the other two towers generates more force in X,Y direction. But how close is possible to go to a tower?
Of course I could make longer horizontal beams but I like the printer to have the smallest possible footprint B)
Best regards
Wretan
Building and designing my printer from the beginning (but not electronics and firmware). Will attach som pictures as the printer takes shape further on. Have recently build a carriage (printer head) with integrated Z-probe that works well. I use the nozzle as probe and ball bearing as a stable pivot. Microswitch for leveling works without problems. Will probably end up at thingiverse later on.
But one question that will affect the design is my choice of lengths for horizontal upper and lower beams. On my attached picture I have a glass bed of 300mm in diameter and there is 200mm from the center of each tower to the middle of the round glass. Rods are 275mm between center of ballheads.
If I put the nozzle far out on the glass plate the beam at tower A becomes almost vertial and the rods at tower B and C are nearly horizontal. Will this become a problem?
Should I put longer horisontal beams at the bottom and top of my printer to make the distance between towers and center bigger? I suppose that the carriage at tower A in this position only keep the printer head parallel to the glass plate and that the carriages of tower B and C is making the motion toward or away from tower A. (at the attached position of printer head)?
The closer the printerhead is to a tower the less force in XY-direction can be produced from that tower but on the other hand the other two towers generates more force in X,Y direction. But how close is possible to go to a tower?
Of course I could make longer horizontal beams but I like the printer to have the smallest possible footprint B)
Best regards
Wretan
