🔩 Elevate Your Engineering Game!
This pack of 4 flexible couplings is designed for 3D printers and CNC machines, offering compatibility with NEMA 17 stepper motors. Made from high-quality aluminum alloy, these couplers ensure durability and stability while eliminating stress between motor and drive components.
A**R
it works but
they work but two of them came damaged, surface damage mind you but still functional.
M**R
Very flexible. Not the best choice for dual Z axis
At first I was excited about these couplers. They worked great and I didn't have a breakage or anything. I eventually changed them out for a little more stable flexible couplers because I have dual Z-axis and although they were pretty forgiving in setting up the printer up, they gave a little too much for my taste. The new ones I bought come apart if I pull up too hard on the X gantry so those are not ideal either.I may put these back on at some point but I feel as though I get a little better results when the two sides are forced to remain closer to the same than they allowed.
C**Y
Difficult to adjust.
I've got those to decouple vertical heat-bed screws.Those have a lot of play in them and the shafts swim within their openings.I would guess, there is at least 0.5 mm extra space for the shafts.Also difficult to set those straight up and centered using just the two screws on each end.They ended up generating more eccentricity, deflection, and wobble than my previousnon-flexible couplers. Now my screws dance like some kind of carousel.Definitely, returning those.YMMV - with enough patience, methodology, and art, those can be made to work,but nobody has the time for it.I anticipate that those cheap couplers cost me about 2 hours adjusting - that's about 5$/h incomefor that price - over some better design.
J**N
If for a 3D printer Z screw, get a 1/4" ball bearing or thrust bearing setup as well.
The flex coupler will address Z screw wobble, BUT, the weight of the gantry will compress the coupler and will affect the Z-axis steps. Place a 1/4" steel ball bearing in the 8mm side to support the Z screw and still allow for flex in the coupler. Or, you can do a fancy thrust bearing setup that requires more work.
A**W
Helped some with z-binding
Helped a little with z-axis binding for my ender 3. I think this with a dual z setup is best.
M**S
Oopsie
I was an idiot and didn't realize they require some other thrust mitigation (I have a cheapy 3018) so I wasn't able to use them, at least not until I take care of that. They were fine, personally I'd like to see offset screws instead of 180 opposed for adjustability but maybe I just don't know why its done like that. The bores were fairly close fits and not oversized.
D**.
Perfect! Fixed my issues
Helped eliminate some of my ringing on my ender 3 and help the z rod flex and not bind at the top of its travel
O**R
Very good
Absolutely good stuff
Trustpilot
1 week ago
3 weeks ago