I cant fix My Shaper and Resonance Graphs | Rat Rig Community [Unofficial] | Page 1

tawdry magnet Jul 24, 2026, 9:31 PM

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I cant seem to fix my bad resonance and shaper graphs. I am using a Vcore 4 500 (Formerly IDEX, now AWD because I thought it would fix the issue.) I have checked every screw. Re-leveled and Re-squared the printer multiple times, and converted from IDEX to hybrid, and then to AWD to no avail. At this point I have no idea what to try next. What can I do?

torn parrotBOT Jul 24, 2026, 9:31 PM

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tawdry magnet Jul 24, 2026, 9:33 PM

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Pictures of printer itself

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rugged ivy Jul 26, 2026, 7:41 AM

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I would suggest to use the spectrometer app and see what is your current belt tension.

Shaper indicate Best smoothing at 29hz which may show too low belt tension.

This is an example of what you should see.

Screenshot_2026-07-10-18-59-38-801_org.intoorbit.spectrum.jpg

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Screenshot_2026-07-10-20-02-24-768_org.intoorbit.spectrum.jpg

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First peak should show between 50 to 62 hz on a v-core 500. (here you see 47 and 44 respectively as an example which is too low)

tawdry magnet Jul 27, 2026, 9:26 PM

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well. This is me maxing the tensioning on both sides. I'll test the spectrometer next

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If I'm still getting this should I Shorten my belt lengths?

rugged ivy Jul 30, 2026, 8:29 PM

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Your graphs look very weird. Uneven belt length dont yield this alone.

Untighten your belts completely.

Tigthen it until belt stops skipping (so less than 44hz on spectrometer). Take a lego block. Push your gantry forward till the extrême left hit the lego block that is between your gantry and the parallel front extrusion and see the space différence on the extrême right with that same block.

Tighthen High or Low belts until the gantry is parallel.

Once the gantry is parallel measure Both belt frequencies and increase till you hit 50 hz on Both (there May be a différence of 3 hz).

Then run Y shaper, no need to run Both X and Y every time, its a loss of time.

If Y is perfect, focus then on X

Good luck.

tawdry magnet Aug 8, 2026, 2:47 AM

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rugged ivy Your graphs look very weird. Uneven belt length dont yield this alone. Untighte...

looking further into this I had my tensioners backwards on my AWD mounts. (I guess L stands for "lower" and not left). After fixing it I'm still getting these errors. What spectrometer app are you using?

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rugged ivy Aug 8, 2026, 11:40 AM

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Spectroid

What tensions do you have on your belts ?

tawdry magnet Aug 10, 2026, 7:18 PM

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59-60hz at the moment

tawdry magnet Aug 10, 2026, 9:26 PM

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strike that. retuned to 87 hz

#I cant fix My Shaper and Resonance Graphs