SoliForum - 3D Printing Community — Solidoodle 3 - Y axis manually going wrong way

Re: Solidoodle 3 - Y axis manually going wrong way

2013-08-02T14:17:32Z

Thanks. Just hearing that others have had similar experience leaves me to continue on with calibrating the rest of the printer. I may eventually remove the bushings and print a LM8UU block that can be attached to inside of the aluminum bracket. With a better leadscrew assembly built into it as a future mod.

For now, I am going through the motions. Just making sure nothing I am seeing is something to address as abnormal.

Re: Solidoodle 3 - Y axis manually going wrong way

2013-08-02T13:06:19Z

it doesn't move enough during prints for it to be an actual quality issue - the cantilevered design with the heavy weight over the front of the platform and the relatively low-speed of the z-axis means it wont move that much under printing operations - heck I printed for 4 months with a completely blown set of right hand side bushings and over 10mm of lateral movement (which will occur during prints) - but even then it had minimal impact on overall quality compared to banding.

Remember too, you can exert a lot more force without realizing it than the stepper ever can...

BUT.. if its a 'its just not right issue' - be sure to follow up with support, I did and eventually got a replacement... but my print quality remained the same

Re: Solidoodle 3 - Y axis manually going wrong way

2013-08-02T12:38:25Z

I got it figured. I have a tendency to over think things.

Another question though:

With this aluminum Z bracket, I have so much slop in these bearings that I can tilt the front of my bed up and down over 5mm. To me this is unacceptable. But if others have the same slop, I can ignore it for now. I just seems silly to fix Z banding when the bed itself can wobble up and down by more than 18 times layer hieght, let alone the variance in wobble.

Re: Solidoodle 3 - Y axis manually going wrong way

2013-08-01T04:18:00Z

Y + is toward the back of the machine. everything is normal. that's how the machine finds its home position, by bumping the limit switches.

Solidoodle 3 - Y axis manually going wrong way

2013-08-01T03:06:06Z

SD3 received 2 days ago, assume new printr board.

Repetier Host V0.90C
Slic3r V0.9.10b

Unboxed and powered and nothing inherently broken.

I was able to connect and get the printer recognized as a SD3.

I can see temps, turn heaters on and off, and manually move the motors.

I homed Z axis and found it far away from the nozzle. Reason why is there is alot of play in the Z bearings. The entire deck tilts up and down. So I pushed it down and used the business card method to level the deck. I then home the Y axis and here is what gets strange:

I can no longer move the Y axis after homing. Because Repetier moves the Y towards the back for positive movement. At this point I shut down the printer and move the axis back to the center. I am afraid if I use Repetier to move the Y axis again, it will crash into the homing switch. Which makes me vary wary about starting my first print. Is there something I am missing here? From my research, the direction of positive movement and homing is all in the firmware, so there should nto be anything for me to set in RH.

Am I just being over cautious, or can anyone else confirm which direction their SD3 moves in manual mode?

Currently Z positive moves down
X positive moves right
Y positive moves back

Oh, also the motors move in the direction of the homing switch when commanded to home.