Not having any luck fixing the belt tension.
I've redone the belts and as far as I can tell the gantry is true. What else should I look for?
VC400 Hybrid belts kicking my butt and taking my lunch money
Tuning my Hybrid belts is becoming quite the ordeal. Stock coreXY mzv Y acceleration is about 3700, adding y belts only takes it up to 4200, but the response is terrible. If I do tune the y belts to make an acceptable graph, the acceleration will still sit at around 4000, but the belts are just tightened with finger strength, nothing more. I tried tuning with the pinned macro isolating the y belts, but I can't tighten or loosen the belts to get the response to be anywhere close to matching.
first 3 added pics are during core xy. Last few pics are during hybrid calibration...
Solution:
Solved it. The hybrid belts needed to be much tighter than I had initially. I bottomed out one of my tensioners.
Please comment VC4-300 CoreXY and Hybrid
These were my charts for CoreXY configuration after tuning (Ok, but not great; I just was not able to get the peak at 100Hz away)
V-Core 3.0 500 Belt Tension
I'm wondering what I adjust here, is this just a dark art or should I be loosening/tightning one or both belts until the vertical peaks line up? 🙂
VCore4 400 CoreXY Graphs
Just finished building my VCore4 400 CoreXY. Wanted to make sure my graphs were decent before I went to add the hybrid kit.
vc400 CoreXY Belt Tension
Currently trying to get my belts even
Solution:
How does this look, dropped both to around 92hz
VC4 500mm - Can't figure out toolhead vibrations
So, I finally got some good graphs but I've always had this same noise on all my graphs. I can't figure out where it's coming from. Here is my latest graph and pictures of my toolhead. I rebuilt and retightened everything down on my toolhead. Rerouted my wiring, tried different orientations. I just don't know what to do at this point so any help greatly appreciated.
The noise is the same in every graph at the 115-135 range. Has that exact same shape. Just need some guidance on what to look for or if I should just move on. I get it, look for loose stuff on the toolhead but I've literally checked everything. I've wasted an incredible amount of time trying to fix it and have projects that I need to get printed and done. Thank you.
Also, I just realized that I can run the tension graph even without changing anything and it will produce different results. Maybe I should just align my gantry up front and call it a day....
Vcore4 500 First Belt tension
Just ran the first Belt Tension Test and anted to verify that this is looking ok.
Curves are pretty much the same except for the 110-130 Hz range.
Thanks....
Vcore4 Hybrid belt tension
Hello, would someone comment if this looks good for a hybrid V4 400? I don't know what to make of it. Thank you
weird belt tension graph
Hi, I have 2 opposite peaks, and I don't know what to do about it. at first I had the graph labeled 000 then I fiddle with it, make it worse, tried to get back to the original and now I have the second graph, prefixed with now
my x gantry was slighly skewed, which I solved before doingt those measurment with the belt tensionner.
also I applied too much torque (9.8 Nm instead of 0.98 Nm) on the Y rails, stripped all the screw and they cannot be removed (it was my first time using a torque wrench, I tough the screw sripping was the wrench telling me 'that's enought')...
Could use some guidance on the psd graphs. VC4 500
Having trouble with my resonance and tension in the belts and I’m not sure what to look for and what to adjust. I get that clicking noise in my left stepper if I tighten too much. I see some people with max psd in the 4-5 range but mine seem to start clicking if I do more than 3. Will have to double check the exact value, I just hate hearing that sound so avoid tightening too much.
I can’t seem to get the blue line to match up with orange no matter if I tighten or loosen either side. They just vary in maximums and difference but orange is always higher than blue. Maybe I need to focus on getting the first spike before that.
Lastly is the jump from 115 to 135. I know it’s a tool head issue but can’t seem to figure out what exactly it is. I also have that weird rise towards the end of the graph. ...
VC4 400 Hybrid Input Shaper Sanity Check
These feel like reasonable vibration and accel values to me but would love a second opinion. What would you set max accel to with these numbers? 8k?
Thanks!...
VC4 400 Hybrid
Please evaluate and interpret the charts, I've been struggling all day and I still have one peak.
"Oh, my V-Core 3.1 is working almost perfectly. I'll make it even better" then this
I'm a moron.
I had my V-Core in a great spot, but I started getting some weird resonances. At the end of my troubleshooting I replaced the rails/carriages, which got rid of the resonance noise, and also put in a light weight gantry. But while doing all of the prior troubleshooting, I must have misaligned something related to the lower belt and I believe from the belt tension graph it must be binding somewhere? Would the the lack of higher frequency resonance suggest an issue with the back run of the belt?
All micro shims are installed and accounted for as well....
VCore 3.0 300 Belt and Resonance graphs
Picked this up used pretty cheap, done some adjusting and these are where I am at now. I used Klippain Shaketune to generate them. I'm planning to reprint and upgrade the printer to 3.1 sometime in the future so I'm not after perfect results, but curious to know if there's any obvious things I could check that would improve these without taking things apart right now?
Peak 68hz on x and y
Hey guys,
does anyone have an idea what could cause this peak @68hz?? It is on x and y, so i think it is related to a belt or the printhead....
V-Core 4 400 COREXY - Y-graph
Hello
While my X-graph and belt tension graphs look good, the Y-graph looks somehow terrible and I don't know where to start. My assumption is a faulty idler pulley on the right side. Any ideas?...
VC4 400Hybrid What am I looking at here?
Following the guide I get to belt tension test. Y motors unplugged and belts disconnected. Not gunna lie I just folded the belt in half and cut it then pulled each as tight as I could and locked it all down with tensioners full loose, then tightened until it felt right, fined tuned to align gantry and happen to have same length hanging out so?. What's this mean tho? Do I need to pull 1 more tooth through on the upper? Did I nail it? Both to loose? to tight? I watched a very in-depth youtube vide...
