AurelienC

Hi everyone As the timing belt I need is the smallest timing belt ever ( 1mm pitch ), it doesn't have and doesn't need a cord inside. I already cutted one and they are 100% polyurethane. Also, the mechanical force are limited, as load and speed are really low. I succeded in printing one ! This is a first try but I am much more confident to print a usable one. What do you think about it ? How can I improve the rack shape ? Thanks

Hi My goal is to print a 1mm timing belt, type FHT ( http://shop.sdp-si.com/catalog/product/?id=A_6B18M190030 ) As SPI/SI is the only one supplier that I found, and they are stopping the production of the length I need, I would like to try printing my own timing belt with the length I need. You can download my stl file here : https://cloud.univ-grenoble-alpes.fr/index.php/s/RyXxcdw4HziJXsW This doesn"t retractation, but teeth are really smal and definitively need a 0.25mm noozle

Thanks for this answer. I can ask an access to UM2 machine, probably better to try it in this way, isn't it ? Thanks

I need to print TPU95 with small details, on my UM3 According to this article : https://support.ultimaker.com/hc/en-us/articles/360011940440 UM2 is compatible with TPU95A and 0.25 nozzle, but not UM3, which is 0.4 or 0.8 only Is there a technical reason about it ? How can you loose a spec upgrading the machine ? Actually Cura don't want to slice in this configuration, like it is totally forbidden. Is there a way to damage the printcore ou the printer ? Anyone already tried ? Thanks

Hi Thanks for all these advices. I actually looked at the Ultimaker s5 ingenering profile, and in there, the "Enable Jerk Control" is activated. Also, the speeds are not unified . I printed a clearance test using this profile on the UM3, and the result seems not better than the settings given in this post.

Hi everyone I have a UM3 with dual extrusion PLA/Breakaway When the 2nd extruder ( breakaway ) is choosen as the source of generating support, extra support and a kind of raft is automatically created. I haven't found explanation of this phenomenon, and how to disable it. I makes my pieces really hard to remove, and does not improve anything. Do you have an ideas why it is created and how to diable it ?

Hi I would like to re- open a know topic about the X-Y precision from ultimaker, and the way to improve it. I know that this question was already open before, but the way they ended do not satisfied me, and I really would to start an new topic, abording the subject in an other way. I already printed with my UM3, this piece multiple time ( same material, same position, same settings ) ( https://www.thingiverse.com/thing:195604 ) that is exactly 100mm on both X et Y axis As a result, always the same result : X : 100,30 Y : 100,01 According to this topic: https://community.ultimaker.com/topic/33370-how-to-do-xy-dimension-calibration/ , the UM3 does not need to be calibrated as "they are calibrated very well and there is no way to change the steps without hacking into the firmware." According to this topic :The bad result are due to speed, and settings. So I reduced as they explained the profile to fit an "engineering profile" probably slower but more precise. As a result : X : 100,20 Y : 100,00 Because this error on X is always here, and I have don't have this error on Y => This is not due to settings in Cura, but really in hardware As the error is very consistent in time, this is not a deal with imprecision => the printer is actually very precise. The settings actually does have an influence on this error => I would to know if I am right in my conclusion, and how to get this piece piece between 99.91 and 100.09. Thanks