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I printed the hamster drive parts & put it together for a test fit. I added a flange around the drive gear to give the wheel a little stability....
I got the bright idea yesterday to shorten the 3d printed TPU belt by 8mm since it stretches a little & the 2nd test print using it worked the...
After fiddling with klipper firmware for a day, it has solved all my firmware problems. The servo action works perfect. I created a G10 & G11...
Here is a solution someone on the v1engineering forum gave me to my planetary gear idea. It is not really a planetary gear this way, but does...
I may have found a solution to using the servo for Z-axis. Yesterday I started looking into using klipper firmware instead of Marlin & posted a...
Looks like my timing belts will be here any day now, but in the meanwhile I had a wild idea about another version of gear drive. Since I need a...
Since I am dealing more with an angle movement for the z-axis & I want to use 5mm Z height for the Pen up which should be around 22.5 degrees, 160...
I didn't make any progress with getting the servo motor to work correctly, so I decided to let go of that aggravation & work on a mount for a...
Here is a test of the servo for the Z-axis using Marlin firmware. [MEDIA] The servo is not implemented for this unless I use a special branch that...
The servo worked well, but the 3d printed belt is still a problem. I worked on moving the pen mount closer to the carriage. I mounted it...
Think I have a descent pen mount now. It can stand a little more fine tuning, but should work. For the springs I took a dollar store pen...
I reprinted the wheels for the original GT2 belt driven version yesterday since I had not made the ones with indented version that used shorter...
I was about to get on thingiverse this morning, so I uploaded the idler pulley bearing design there & also made a version in fusion 360....
I made a parametric openscad file creating these idler pulleys & uploaded the zip file Idler_Pulley_200326.zip to the files area. I created 4...
That 1 bearing idea doesn't look like it will work, so I redesigned it with 2 bearings. I was trying to skimp on bearings. [ATTACH]
It appears that with the 33T drive gear there is not enough torque to turn the wheels. I adjusted the vref from my initial .47v on the DRV8825 to...
I tested the machine with the 2 in between bearing gears & could not get them to adjust for a good meshing of the gears. Just having that one...
Thanks for trying the design. Hope it works for you.
I finally got the 2 end plates printed for the new design after a couple of failed prints. They feel a little clunky rolling the gears around by...
I uploaded a zip file of all the STL files as well as a sketchup file of the assembly to the Files and Drawings tab. The sketchup file should be...
