Reddit Reddit reviews uxcell 5mmx8mm Motor Shaft Helical Beam Coupler Coupling 18mm Dia 25mm Length

We found 4 Reddit comments about uxcell 5mmx8mm Motor Shaft Helical Beam Coupler Coupling 18mm Dia 25mm Length. Here are the top ones, ranked by their Reddit score.

Industrial & Scientific
Power Transmission Products
Couplings, Collars & Universal Joiners
Flexible Couplings
Flexible Beam Couplings
uxcell 5mmx8mm Motor Shaft Helical Beam Coupler Coupling 18mm Dia 25mm Length
Product Name : Beam Coupling;Features : Screw Type(Coiling Clamping)Shaft Usage : 5mm to 8mm / 0.2" to 0.31"(1/5" to 5/16");Length : 25mm / 0.98"Diameter : 18mm / 0.71";Material : MaterialAluminum Alloy : Aluminum Alloy;Color : Silver ToneWeight : 14g;Package Content : 1 x Beam Coupling
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4 Reddit comments about uxcell 5mmx8mm Motor Shaft Helical Beam Coupler Coupling 18mm Dia 25mm Length:

u/kingfisher987 · 3 pointsr/3Dprinting

As others have stated it looks like Z wobble

Do you use Flexible Coupling's? (eg:https://www.amazon.com/uxcell-5mmx8mm-Helical-Coupler-Coupling/dp/B00KHTVOEU/ref=pd_lpo_328_lp_img_4?_encoding=UTF8&psc=1&refRID=C2PXGYBEHJNE7GHTR8RY)
To connect your Z motors to the rod/lead screw?

If so, I would swap this to a solid connector (And upgrade to lead screws if you haven't already)

Even these work better than the Flexible Connectors
http://www.thingiverse.com/thing:602481

u/sbussinger · 1 pointr/PrintrBot

I made the mod to my Simple Metal and while it's sort of functional, it's making noises that obviously indicate some issues. I'm hoping someone here has some suggestions on what's wrong.

I used this leadscrew: http://amzn.com/B015PS2Z4K and this coupler: http://amzn.com/B00KHTVOEU that I'd picked up a few months ago. I'm using the Machine Control Panel of Simplify3D for my testing.

There's a small "thunk" every time I start moving the Z axis. Aside from that, moving the extruder assembly up is smooth. But moving the extruder assembly down is very herky-jerky. Something must be binding and catching but it's not obvious to me what.

If I remove the set screws attaching the lead screw to the adapter I can manually lift and lower the extruder assembly fairly smoothly. The lead screw can be pushed up and will drop down smoothly under gravity. The stepper spins smoothly both directions. Is it an issue with the coupler I'm using? I tried pushing the lead screw down as far as I could before tightening and leaving it up a bit before tightening it down to no difference. I'm thinking the "springy" coupler design was a bad choice?

Or is my problem elsewhere?

u/Kingbdude · 1 pointr/3Dprinting

X and Y look awesome, but you are experiencing LOTS of Z banding/wobble. Look into some Z axis stabilizers or some flexible Z axis couplings like these. Also it looks like you have some underextrusion on the top. Try either increasing the number of top layers or run an E-step calibration for your extruder

u/alpachydermatologist · 1 pointr/3Dprinting

No problem. I believe most people use something like this to connect the screw to the Z stepper.