Awesome iteration of the Prusa XL Tool Changer. I currently use a magnetic design with integrated pins for locating. Works well, but I am following this closely. Just a note, your video is mirrored, when you were tightening the screws, it looked like you were loosening them. And your writing on your shirt is backwards. This will give people issues when assembling.
Wonderful job! But I noticed the two rods and the housing where they are located are all made in Plastic (i Dont know if petg, ABS, ASA or PC). Does the friction of these plastic parts lead to greater wear?
No - I amusing ABS and have not seen any wear in the plastic parts due to the sliding motion. You can very lightly grease them when assembling to eliminate any residual friction - but eventually after a few locks and unlocks, the friction areas get smoothened out automatically. I musthave done more than 5000 tool changes and am yet to see any wear.
Looking nice, keep posting the updates. One question - could this work without the springs? There might be enough flex m the plastic to make a tight fit.
Not sure if it would work without the spring- the flex is not what locks the tool in place. the sliding lock plate needs to move in by compressing the springs. You need about 3-4mm of compression to lock the tool in place
Great design! I downloaded your the CAD from github but am struggling to find out what causes the locking mechanism to latch (specifically the two bars the slide). It looks like there is a detent of some kind when you actuate but I see nothing in the cad that would accomplish this.
There is no detent - it is the pulling force of the spring and the movement locking nature of the kinematic coupling keeping the toolhead in its place.
Looking forward to building this tool changer, out of all the open source designs out there this one is easily the most compelling IMO.
thanks
Awesome iteration of the Prusa XL Tool Changer. I currently use a magnetic design with integrated pins for locating. Works well, but I am following this closely. Just a note, your video is mirrored, when you were tightening the screws, it looked like you were loosening them. And your writing on your shirt is backwards. This will give people issues when assembling.
thanks - I will fix the video. Thanks for letting me know,
This is awesome! Just getting into the 3d printing world and have dreams of building a Ratrig with this toolchanger someday.
thanks
Nice build, thanks a lot for sharing. I will try to adept it to Vcore 3.1 enclosure :-)
Thanks
Very good work.
Wonderful job! But I noticed the two rods and the housing where they are located are all made in Plastic (i Dont know if petg, ABS, ASA or PC). Does the friction of these plastic parts lead to greater wear?
No - I amusing ABS and have not seen any wear in the plastic parts due to the sliding motion. You can very lightly grease them when assembling to eliminate any residual friction - but eventually after a few locks and unlocks, the friction areas get smoothened out automatically. I musthave done more than 5000 tool changes and am yet to see any wear.
Awsome work have you tried this system on a ratrig yet again love your work
Hi - have not tried this on a ratrig but it should be compatible with minor changes to the docks
Great detailed Instruction. Just in case, are you running on Klipper? Will you also explain the config/macros in there later on?
Yes - there will be a detailed section on config and macros
Looking nice, keep posting the updates.
One question - could this work without the springs? There might be enough flex m the plastic to make a tight fit.
Not sure if it would work without the spring- the flex is not what locks the tool in place. the sliding lock plate needs to move in by compressing the springs. You need about 3-4mm of compression to lock the tool in place
Great design! I downloaded your the CAD from github but am struggling to find out what causes the locking mechanism to latch (specifically the two bars the slide). It looks like there is a detent of some kind when you actuate but I see nothing in the cad that would accomplish this.
There is no detent - it is the pulling force of the spring and the movement locking nature of the kinematic coupling keeping the toolhead in its place.
@@ankurv2k8Can high acceleration loosen the locking mechanism and move the two bars accidentally?
excellent work thank you
Many thanks!
Great stuff
thanks
Супер!
Thanks