Full Metal Joiners! [Ratrig VCore 3.x]
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- čas přidán 11. 02. 2024
- Trying out Metal XY joiners on my custom Ratrig Vcore-3. Do they work??
Link to Blurolls CNC'd aluminum XY joiners:
www.aliexpress.us/item/325680...
Idler & Pulley kit:
www.amazon.com/14-Pack-Printe... - Věda a technologie
Great tip on pulling the belts through tight spaces with a zip tie!
Great job, I cracked mine when over tensioning the belt so plan on getting to this.
The tensioning docs are sorely lacking which is weird as everything else is documented perfectly.
Would like ro see more on your joiners. I have replaced almost everything else on my Rat Rigs, and am pretty happy with the way they run. I just added a WhamBam build plate on my 500 cube and it really works
I went through a few different ones myself and like glass best.
@@noanyobiseniss7462 I was a big glass fan. Used hair spray if needed, but I'm blown away on the performance of the WHAMBAM PEX sheet and magnet bed. It was pricey, but works great and just pops off.
Did the aluminum joiners have any noticeable effect on the printer's noise?
5:45 Did you notice that your graph title says 'resonances Y,' but the peak shows Z-acceleration? I think you've got your axes mapped incorrectly. It's fine as long as you're just looking at the curves since you know which axes were calibrated, but for autocalibration, it will set the shaper for the wrong axes.
I didn't notice any change in sound or noise with these. Might be a tiny bit louder, but I can't say for sure. And you are correct! the readings will come out on the "Z" since the ADXL board is mounted vertically on my toolhead
@@mikey631 you can use a setting axes_map to account for different orientation
did u solve the issue of second peak？ i also have same
Issue and a little racking.
I did a rebuild of the machine and got a much better result! Also, the angle on the joiner mount isn't a perfect 90 degree corner, so if you really crank down the bolts on the 2020 extrusion, you can feel a little binding and resistance on the linear rails. only tightening one bolt on each side makes it move better. I'll probably change these out soon. I'll be looking to see if there are other joiners that I can try.
Looks like you have a bent z screw
Actually you lost performance. Have a look at the recommended input shaper curve and related speeds in your results.
Your old set up recommended using a 2 hump EI shaper with a max acellerstion of 6,900.
Your new set up recommende a EI input shaer with a max aceletation of just 6300.
Also look at the residual vibration percentage in your results, because they also got worse.
A very poor result, but probably more due to tuning and alignment issues than the joiners themselves.
As someone else has already pointed out you have very poor Z banding possibly pointing to leadscrew wobble.
Thank you for the detailed response. I looked at some old input shaper graphs, and these secondary peaks recently showed up. I don't think it's the joiners, as there was some weird peaks on a different setup had with the stock ratrig joiners. So I am in the process of trouble shooting what else has changed. though even with these results, VISUALLY, there was an improvement, so there's that. Also as far as Z banding. I did some tuning with flow rate, and have improved that considerably, so I don't think I have major issues with the lead screws. but again, that could be something else to test.
@@mikey631 Yep agree it is unlikely to be your new joiners. More likely to be something that got upset in the process of installing them. Maybe check that you X rail slides freely in the y direction with no binding.
Those are very bad results. You made it worse, second big peak means serious issues with motion system.
did some testing today, and was able to get different results when I shimmed up the frame at the front, so I suspect it has gotten a little loose over time. the printer is 2 years old, and has had quite a few mods. I think I need to rebuild the frame and tighten everything up.