Topics created by hevilp

Thanks, but please note:

All Parameters in the files (such as axle limits, accelerations, directions of rotation, etc.) are not final yet, as my printer is currently learning how to walk - and similar to children, at the moment it's still stumbling 🙂

@fma said in Adjusting speed - slic3r?:

Yep, but from a software point of view, adding a key to enable/disable this feature, without relation with firmware flavor, is as simple as what they did. And much less confusing.

Oh for sure. But the only reason Prusa do their own version of Slic3R is for users of their (Prusa) printers. And it's for marketing reasons (it helps to sell more printers). They don't really care about non Prusa users (and why should they?) I think they take the attitude that other people can use their version of Slic3R if they want to but it's really for Prusa printers and so it's not up to Prusa to make life easier for people who don't use their printers. They haven't put time and effort into modifying their version of Slic3R for the good of the entire printing community - they have done it to sell more Prusa printers. But there is nothing wrong with that - it's a good business model.

@hevilp once we build enough stock they will be available through our resellers but it will take some time. I can't give an estimation yet.

Okay,

its fine than. I think its nothing with the duet. Speeds above 50 mm/s does stutter, rattle, shaking on the X-axe - carriage and I'm not able to figure it out. It was with rods and now with linear rails, too.

On the video you cannot real hear how loud it is, anyway:
https://www.youtube.com/watch?v=id_A0d7HXlw

Just not usable above 50 mm/s, I'm happy with any help here, the printer is jsut garbage with the sounds.

@hevilp I am using the slightly more recent RC for firmware version 2.02 (RC3) and the latest DWC, however I don't think that would cause this issue.

Can you try dropping the Telnet service and starting it again:

M586 P2 S0

M586 P2 S1

If that does not work then maybe do a firmware upgrade to the latest RC just to be sure.

edit: I just checked and you can only have 1 telnet session open, could it be you have multiple sessions?

I selected 22V as the threshold, and 23V as the restore. My PSU provides stable voltage (never dropping below 23.9V and never going over 24.5V).

@hevilp can you upload the. csv file for both g29 and g32?

I am working on doing this myself. There are some challenges.

Because the piezo sensors rely on movement, the larger the base that you can cover within the sensors, the better. I had a relatively small base for my bed size, and that ended up with unacceptable results.

So say that a piezo sensor requires 0.1mm of movement to trigger a response that the board can pick up. (Other options, like speed play a factor, too, but assuming that probe speed is constant, it will come down to movement.)

If you probe directly over top of a sensor, you'll need 0.1mm of deflection to register a touch. for anything that is outside of the polygon defined by your sensor locations, there will be an axis of deflection, probably made up by the two most distant mount points. We'll assume zero bending of the bed itself, probably close enough for the forces and spans involved on most 3D printers. For my old setup (I'm changing it to be better) it might be possible to probe 80mm away from a sensor, which in turn could be 80mm away from the axis line. In that case, it would require 0.2mm of movement to get the same signal. Actually, since it tried to use an axis of deflection in between 2 sensors, I found that I needed over 0.35mm of deflection in one corner, which was a clearly unacceptable deviaton over the surface of the bed. In addition, probing in the centre of the 3 sensors that I was using needed an even smaller deflection, almost zero, which would otherwise be almost ideal.

For temporary use, I decided to use a 3 point probing system, directly over each of the 3 underbed sensors, which resulted in useable leveling.

I am currently constructing a solution where I am stiffening the support, and placing sensors under the head bed mounting scews. 4 in a 209mm square, under a 220mm by 275mm heated build platform. It will still be possible to probe outside of the sensor polygon, but I will probably define my mesh leveling to stay within that polygon in order to achieve the maximum consistency in probing. I don't have results yet, I'm still in the actual build process for this.

Here is my latest probe run after thoroughly cleaning the glue off of the plate and doing 2 probes per point with bed at 70c and hot end at 180. I also increased the trigger threshold to 600 so it hits slightly harder. And it now has a stiffer Piezo upper mount I printed in Taulman 910. My BuildTak magnet system will be here tomorrow. I ordered an extra steel plate so I can have a Buildtak and a PEI option. At this point I won't be attempting to make the plate any flatter than it is.

edit:

I did a calibration print for square, and it appears I'm good other than a fraction of a degree off 90 degrees Z to Y. So my Z uprights are not quite vertical.

0_1535686955327_Screen Shot 2018-08-30 at 8.30.21 PM.png