<\/p>\n\n\n\n
This table shows the voltages I am using for my FLSun QQS-Pro printer that is using tmc2208 stepper drivers:<\/p>\n\n\n\n
<\/p>\n\n\n\n Naturally the X, Y, and Z values should be the same, but I just couldn’t get the X stepper adjuster to show 0.81. So Either 0.81 or 0.82 should be fine. The extruder likes a slightly higher value since it has to both push the filament through the Bowden tube and hotend, and also pull the filament hard enough to turn the filament spool.<\/p>\n\n\n\n When I upgraded my printer to the new HISPeed motherboard it came with the 4 tmc2208 stepper driver chips (steppers) not installed on the board. The steppers were packaged with small heat sinks that stick on the top of each stepper. So I installed the steppers and the heat sinks on the board with no problem. The new mother board booted up fine the first time, so I loaded up the proper firmware for it and started my first print.<\/p>\n\n\n\n The part I chose to print was large – it had an estimated total print time of 52 hours. I’ve printed large parts like this before with my previous printer, so I wasn’t very concerned about the lengthy printing time. <\/p>\n\n\n\n To make a long story short, I had 2 failures. Both were the same type – missed steps with the X. Y, and Z steppers. The first one happened after about 4 hours of printing, and the second one after about 11 hours. So I posted photos in the FLSun QQS Facebook forum and got quite a few replies.<\/p>\n\n\n\n The most helpful ones said that the tmc2208 steppers are quite sensitive to their voltage settings and can overheat if they are set too high. The recommended settings were 0.80 – 0.85. Overheating will result in missed steps, so it is important not to”over drive” the steppers with a voltage that is too high.<\/p>\n\n\n\n When I checked the voltages of my steppers I discovered that they were all in the range of 1.3 – 1.5. So I tweaked them to the values shown in the table at the top of this page. Then I restarted my long print.<\/p>\n\n\n\n I noticed right away that the printer was printing A-OK, and it was even a bit quieter than it had been with the original factory settings. But the printed results were great, so I have kept these settings.<\/p>\n\n\n\n Last Update: 16 Sep 2020<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":" This table shows the voltages I am using for my FLSun QQS-Pro printer that is using tmc2208 stepper drivers: Stepper Voltage X 0.82 Y 0.81 Z 0.81 Extruder 0.85 Naturally the X, Y, and Z values should be the same, but I just couldn’t get the X stepper adjuster to show 0.81. So Either 0.81 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1225","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/birkbinnard.com\/blog\/wp-json\/wp\/v2\/pages\/1225","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/birkbinnard.com\/blog\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/birkbinnard.com\/blog\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/birkbinnard.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/birkbinnard.com\/blog\/wp-json\/wp\/v2\/comments?post=1225"}],"version-history":[{"count":11,"href":"https:\/\/birkbinnard.com\/blog\/wp-json\/wp\/v2\/pages\/1225\/revisions"}],"predecessor-version":[{"id":1241,"href":"https:\/\/birkbinnard.com\/blog\/wp-json\/wp\/v2\/pages\/1225\/revisions\/1241"}],"wp:attachment":[{"href":"https:\/\/birkbinnard.com\/blog\/wp-json\/wp\/v2\/media?parent=1225"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Stepper<\/strong><\/td> Voltage<\/strong><\/td><\/tr> X<\/td> 0.82<\/td><\/tr> Y<\/td> 0.81<\/td><\/tr> Z<\/td> 0.81<\/td><\/tr> Extruder<\/td> 0.85<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n How did I determine these values?<\/strong><\/h4>\n\n\n\n