To clarify, my understanding is that the standard all plastic igus bushings are intended to be press-fit into a precisely toleranced metal housing for them to assume their intended tightness on the rod. That's the reason many people find igus bushings to be very loose; they're not intended to be used 1 for 1 substituted for linear bearings. Most of the clamping methods found on 3d printers are suboptimal for this purpose; they might work, but will have increased play and reduced lifespan. If you aren't going to press fit them into a machined part, it's much better to go with the aluminum sleeved versions, as they do not require any special mounting and can be directly substituted for LMXUU bearings.
Well yes and no. This video is false in 2 things. First, RJ4JP bushes are NOT meant for pressfit, only RJMP bushes (which are very similar) are made for pressfit. Second, RJ4JP and RJMP are both NOT meant for clamping, they are made for circlips, this information has always been available on the Igus website, no clue why people keep spreading this misinformation. One could argue pressfit and clamping is the same but obviously its not because pressfit provides a consistend and predictable squeeze of the bushing, clamping on the other hand puts the bushing to a punctual force so the bushing will bind. And yes, the aluminium sleeved version is the only viable choice with clamping.
Any tips on how to remove binding? I have the rjum for my hypercube but cannot get them to work properly, especially for the y axis, they bind a lot...
I have had no issues with clamping too hard, which is the usual issue with the regular ones. It sound more like the bearings are not aligned, thus scraping
To clarify, my understanding is that the standard all plastic igus bushings are intended to be press-fit into a precisely toleranced metal housing for them to assume their intended tightness on the rod. That's the reason many people find igus bushings to be very loose; they're not intended to be used 1 for 1 substituted for linear bearings. Most of the clamping methods found on 3d printers are suboptimal for this purpose; they might work, but will have increased play and reduced lifespan.
If you aren't going to press fit them into a machined part, it's much better to go with the aluminum sleeved versions, as they do not require any special mounting and can be directly substituted for LMXUU bearings.
Well yes and no. This video is false in 2 things. First, RJ4JP bushes are NOT meant for pressfit, only RJMP bushes (which are very similar) are made for pressfit. Second, RJ4JP and RJMP are both NOT meant for clamping, they are made for circlips, this information has always been available on the Igus website, no clue why people keep spreading this misinformation. One could argue pressfit and clamping is the same but obviously its not because pressfit provides a consistend and predictable squeeze of the bushing, clamping on the other hand puts the bushing to a punctual force so the bushing will bind. And yes, the aluminium sleeved version is the only viable choice with clamping.
Thank you for this test. I was thinking to get the metal jacketed ones but now I decided to go for the adjustable and also cheaper type.
RJ4JP are not pressfit, RJMP are pressfit. RJMP & RJ4JP Bushes are not made for clamping but for circlips. Check manufacturer specifications.
would've been nice if you'd included links/part numbers in the description. However, it was useful information.
If you watched the whole video, he does, he actually even shows you the web page that item is on.
Do you maybe have a link for that X-carriage?
Any tips on how to remove binding? I have the rjum for my hypercube but cannot get them to work properly, especially for the y axis, they bind a lot...
I have had no issues with clamping too hard, which is the usual issue with the regular ones. It sound more like the bearings are not aligned, thus scraping