SoliForum - 3D Printing Community — Improving print quality on small items

Re: Improving print quality on small items

2016-12-23T07:26:58Z

As far as I'm aware, it hasn't been ported yet for Jr.
There were some discussions about it here .... http://www.soliforum.com/topic/13769/da … tier-port/

Re: Improving print quality on small items

2016-12-23T03:19:16Z

The improvement you were able to make seem really good. I'm also having poor quality print "troubles" on my Da Vinci Jr printer. I've been tring to find a way to install the Repetier firmware onto my Da Vinci Jr, but all I can find are instructions for the Da Vinci, not the Da Vinci Jr.

After scowering the internet I haven't found a way to flash the Repetier FW onto my printer. Does anyone know of a way to get Repetier FW onto a Da Vinci Jr. printer?

Re: Improving print quality on small items

2014-11-16T17:26:00Z

Progress. After an auto calibration and then a manual calibration with a piece of paper, I got much better results. I also reduced the print speed even more in Slic3r, now the slowest speed goes down to 1mm/s.

Re: Improving print quality on small items

2014-11-16T08:24:25Z

I always calibrate manually after auto cal now. Even with a good z offset of say, 250 or less, I still find the print nozzle is too high from the bed. Usually, turning all 3 screws a quarter turn to the left is enough.
I would definitely try a fan right over the print. It helps a lot with tall, thin parts.

Re: Improving print quality on small items

2014-11-16T08:05:32Z

I have found one issue that improved the printing quality - my printer needed calibrating. I did the auto calibration which resulted in a much better print and I also set the slowest speed in Slic3r to 1mm/s. See attached picture.

Its still not great but slowly im getting there. Maybe I need to manually calibrate since I am not so sure about the auto calibration doing a good enough job.

Improving print quality on small items

2014-11-15T14:39:52Z

As a 3D noob I have been using the Davinci with its defualt settings but after trying to print small components with rather poor results, I started messing around with Slic3r.

This is my model:
model01 (see attached)

This is what standard unmodified xyzware makes of it:
model02, model03 (see attached)

So from my understanding the printing speed is the main problem, especially the "hook" part on the biggest component needs very slow printing.

I then started using Slic3r with the hacked version of xyzware, which allows to read the gcode directly. I have used very slow speeds for printing in Slic3r, same as suggested in this post: how-to-get-best-quality-prints-from-xyz-da-vinci-10

The result now is this:
model04 and model05 (see attached)

This is an improvement overall, even my 1mm diameter holes are now printed nicely but the "hook" part is still a mess.

So what can I do? Is there a way to define certain areas of a print to go super slow? Or do I need a cooling fan? Or should I reduce the extrusion multiplier? Can that be done for a certain area only?

Any advice would be greatly appreciated.