On Wed, Nov 14, 2012 at 12:50 AM, Daid <daid
...@gmail.com> wrote:
> Calibrating E-steps is not needed for decent to good prints. It's only
> needed for awesome prints.
> On Tuesday, November 13, 2012 10:25:54 PM UTC+1, Kevin R wrote:
>> If your print is coming out messy it is, as Daid says, likely a
>> mechanical issue. I'd like to also add to that to make sure you calibrated
>> to E steps correctly when setting up Cura and measured your filament
>> thickness accurately. At thin layer heights errors in this value begin to
>> show.
>> @PaulM: Printing overhangs is a bitch, especially with thin layers.
>> Actually, the thinner you go the more they tend to curl. This is usually
>> not enough cooling, though I've experimented with turning the cooling down
>> so that that layer didn't really cool and curl. This seams to work as well
>> but then drooping due to gravity can become an issue. You can also try
>> printing slower. I can't remembered who did this experiment (I think Dave
>> Durrant?) showing the effect of flow and speed on overhangs. I believe if
>> you slow down, you can minimize noodling and curling. Someone correct me if
>> I'm wrong!
>> On Mon, Nov 12, 2012 at 11:59 PM, PaulM <paulmu...@googlemail.com> wrote:
>>> Likewise, I was having trouble with the robot over the weekend. Most of
>>> my prints come out well, but this one struggled.
>>> I tried all sorts of settings, but It always seems to go wrong just
>>> after the legs where it starts the overhand and support for the arms. The
>>> print just goes stringy and messy seemingly whatever settings I use
>>> (although I haven't tried the default profiles). Watching it print, the
>>> arms and 4 corners seemed to be springing upwards a little after the head
>>> moved on so I guess this is at the root of the problem.
>>> The only thing that vaguely made a difference was layer cooling time,
>>> and then not much. Maybe this is due to poor cooling? I'm using the stock
>>> shroud and very little air gets to the robot due to the small size and gap
>>> between the head and fan opening.
>>> On Monday, November 12, 2012 9:23:04 PM UTC, Daid wrote:
>>>> The robots we print are at 0.1mm. Note that the high-quality profile in
>>>> Cura should produce the same quality robot, except that it will take longer
>>>> and it will be stronger. (The robot we print at events is tweaked quite a
>>>> bit in settings)
>>>> If you don't get a good quality print from the quickprint settings,
>>>> then you have a mechanical problem. Usually it's short belt tension, it's
>>>> the nr1 mistake that effects quality. Make sure the short belts are thight
>>>> by unscrewing the X/Y motors a bit, pushing it down, and screwing it down
>>>> again.
>>>> On Monday, November 12, 2012 10:05:18 PM UTC+1, njordan311 wrote:
>>>>> So, I was at the MakerFaire in NY this fall and that is where i
>>>>> decided to buy my UltiMaker. The ultimaker at the fair was printing little Ultimaker
>>>>> Robot with supports <http://www.thingiverse.com/thing:11551> at .04mm
>>>>> i believe. When printing this robot at home, it seems to come out with the
>>>>> proper layer height, but really messy. Any help?
>>>> --
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>> --
>> Kevin Reilly
>> PhD Candidate
>> Department of Chemical and Biological Engineering
>> University of British Columbia
>> P: 604.827.4123 C: 604.313.9149
>> --
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