How did the search for Aluminium go? Past few weeks I have been dealing with a similar situation here in Norway, no metal company's willing to sell to private-persons, I have a few leads but still am afraid that my search will come up empty handed I came over this rather sexy adapter for using ATX PSU here, it would not necessarily require an adapter to use an ATX power supply but I like it siby j0achim - Delta Machines
Quoteo_lampe Just uploaded a short video to demonstrate the shared windings and such. The setup isn't perfect. The idler bracket should be fixed. I thought it would help aligning and centering. I absolutely love the idea of having the fastening screw in the center and using that to anchor the string. One could also potentially go with a guide in the center, in places where you don't have theby j0achim - Mechanics
I tried that, problem is that the string want to steer towards center and eventually it will cross itself, now I have yet to snap a string but it wears out the string quickly. The amount of tension is not that high, string I use will snap at 25kg and I have yet to snap one, I recon I have about 10kg worth of static tension. Lets say you have belts sitting at 8kg using belts, now with the smallby j0achim - Mechanics
Quoteo_lampe Please finish this statement: Restricting the cord-travel along the pulleys would end in _________. Not sure if I got that question correctly, is it left and right steering of center on pulley you are looking for? If so that's PW / 2 I know many have used spectra line in the past, I cannot vouch for it as I personally have no experience with it, but from what I can tell they claiby j0achim - Mechanics
Quoteo_lampe How about using a single flanged bearing and a washer instead of two bearings? Then a wide bearing is required, using standard GT2 smooth idler pulleys I find is the perfect match, in my case 9mm idler pulley after doing the calculations.by j0achim - Mechanics
QuoteTrakyan Interesting to hear about the more windings increasing wear and not helping much with reducing slip. Do you know for sure it's the fact there are more windings causing the extra wear and not just the seam in the 2 part pulley? Really curious to know more about this since I'll be using this sort of system in a higher load situation where slipping is more of an issue. At most 2 windinby j0achim - Mechanics
After a huge amount of testing and a few hundred hours of printing I found that a single full revolution wind was actually enough to prevent slipping, more windings increase wear on the strings almost exponentially. Though there are a few pros and cons with this concept. Pros: Extremely cheap compared let's say genuine Gates belts, and not easy to actually source either unless you buy at leaby j0achim - Mechanics
For future reference if anyone are interested, also included some footage of high speed printing @ thing:2839482by j0achim - Mechanics
High speed benchy printed @ 150% scale. (acceleration, jerk far above stock configuration) 0,1 layer height, inner/outer walls and top/bottom 45mm/s, infill and travel 100mm/s, jerk 30, acceleration 1000, two wall shells, 0,8mm top/bottom, 0,4 nozzle Unfortunately there are a few issues with both Z and Y axis. Z having some binding issues due to the bent sheet metal is far from true andby j0achim - Mechanics
More tension did the trick! Testing so far looks very promising, I am able to go from 20 to 30 jerk as well nearly all signs of ringing are gone!by j0achim - Mechanics
Hi, I am very curious with the approach to replace traditional timing belts with FireLine (FireLine have no stretch), there is video on this approach but extremely little actual information about the subject. FireLine has no stretch what so ever, and high tensile strength, the 0,32mm cord I have has a 24kg breaking strength, which I believe is more than enough for the purpose in 3D printing. Bby j0achim - Mechanics
All configuration appear to be OK but I do have a few tips, did you remember to run the commands M502 and then M500 after you re-flashed your firmware? Here are a few configurations you may change in Configuration.h: // Stock CR-10 tuned for 70C #define DEFAULT_Kp 22.57 #define DEFAULT_Ki 1.72 #define DEFAULT_Kd 73.96 // Ultimaker //#define DEFAULT_Kp 22.2 //#define DEFAULby j0achim - Firmware - Marlin
Hi cyborblades, I'm running 1.1.8 perfectly fine on my CR-10S, I suggest we rather try figure out whats not working on your end. Could you please attach your Configuration.h and Configuration_adv.h so we can look at your configurations?by j0achim - Firmware - Marlin
Hello, I'm getting some weird behavior, as I increase speed and acceleration arc moves become slower, I can counteract this by increasing jerk, however doing that angular moves e.g a 90 degree move becomes garbage. Just as an example of what I am experiencing printing a circle 4mm at 30mm/s a complete circle takes the printer lets say 1 second to complete (fluid motion), when I increase print sby j0achim - Firmware - Marlin