It would appear that this thread has died.
Has anyone gotten their 3dr simple to print well? I see many have them "printing" but how many are dialed in?
An update on mine:
1. I have finished re-printing the bottom frame pieces. It seems the first round of parts weren't accurate. The new bottom frame places one tower approximately 1mm further away from the others. 2 always align but the third is always out by about a mm. have to assume this affected the angular placement of the towers too. I'm hoping this was the cause of my major calibration issues.
2. I will be using a three bearing carriage to gain better linearity in the carriage movment. Right now, the linear force applied by the spectra line is not centered on the carriage and induces a moment and torque loading on the bearings which can cause binding. A three bearing carriage will fix that. I may just glue two carriages together and have 4 bearings.
3. The motor mounting boss on the bottom corners could have been fused to the corner sides in the model. There is still available flex in the corner pieces because of a lack of bracing that transfers loades from the sides. tying the motor boss to the sides will substantially strengthen this piece. I won't repritn them but will add a glued in filler piece (glued with abs slurry).
4. I am going to glue all frame pieces together and then screw them together. This will substantially increase the rigidity of the frame.
5. I am going to print out flat pieces to glue to the "wings" to fully box them in after the frame pieces are glued together. This will also substantially increase the rigidity of the frame.
If I fail to get this machine calibrated then I'm going to sell the frame (minus Ramps and motors and move on).
Chris,
My bottom frame took a total of 34 hours of print time for all 9 pieces.
I estimate my upper frame will take approximately 28-29 hours of print time (less involved upper corner pieces).
The carriages took 4.5 hours to print all three.
The end-effector will take approximately 4-5 hours to print the pieces.
These times are for my machine running at 80mm/s and 500mm/s^2 acceleration settings.
Has anyone gotten their 3dr simple to print well? I see many have them "printing" but how many are dialed in?
An update on mine:
1. I have finished re-printing the bottom frame pieces. It seems the first round of parts weren't accurate. The new bottom frame places one tower approximately 1mm further away from the others. 2 always align but the third is always out by about a mm. have to assume this affected the angular placement of the towers too. I'm hoping this was the cause of my major calibration issues.
2. I will be using a three bearing carriage to gain better linearity in the carriage movment. Right now, the linear force applied by the spectra line is not centered on the carriage and induces a moment and torque loading on the bearings which can cause binding. A three bearing carriage will fix that. I may just glue two carriages together and have 4 bearings.
3. The motor mounting boss on the bottom corners could have been fused to the corner sides in the model. There is still available flex in the corner pieces because of a lack of bracing that transfers loades from the sides. tying the motor boss to the sides will substantially strengthen this piece. I won't repritn them but will add a glued in filler piece (glued with abs slurry).
4. I am going to glue all frame pieces together and then screw them together. This will substantially increase the rigidity of the frame.
5. I am going to print out flat pieces to glue to the "wings" to fully box them in after the frame pieces are glued together. This will also substantially increase the rigidity of the frame.
If I fail to get this machine calibrated then I'm going to sell the frame (minus Ramps and motors and move on).
Chris,
My bottom frame took a total of 34 hours of print time for all 9 pieces.
I estimate my upper frame will take approximately 28-29 hours of print time (less involved upper corner pieces).
The carriages took 4.5 hours to print all three.
The end-effector will take approximately 4-5 hours to print the pieces.
These times are for my machine running at 80mm/s and 500mm/s^2 acceleration settings.