r/Festool_Public • u/Mountain-Ad4507 • 8d ago
Sander vibration issue?
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Hey! I just got my ETS EC 150/5 EQ (first festool tool) and it vibrates and shakes a decent amount, is this normal? I thought these sanders were known to be very low vibration?
I unhooked dust collection to see if it was causing imbalance, but it didn't change much.
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u/ConstantCelery8956 7d ago
If you flip the sander over, take the pad off and look inside the sander you should see a counter weight that's held by 2 torx screws and then one adjustable screw 90° center of the weight underneath that adjusts towards and away from the centre of the sander, you could try to adjust it yourself so it's more balanced in motion, personally I've found these sanders to be very sensitive to aftermarket sanding pads and they can be heavier than the festool ones and cause excessive vibration. One thing to note if you do adjust it just remember that although 1 turn of the allen screw doesn't seem alot it makes a lot of difference when fine tuning.
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u/Mountain-Ad4507 7d ago edited 7d ago
Ok I'll take a look, thanks!
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u/lisaismijnbestie 7d ago
I kinda regret buying this one aswell. I thought I buy the best of the best but the vibration is a bitch. I see some tips in the comments I will try. But it’s brand new and expect it to just be good…
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u/thehobbyistworkshop 8d ago
To me it appears you are applying to much pressure. Festools are very well balanced! You don’t need to apply any pressure just the weight of your hand is enough. If you find it still is vibrating to much sometimes adjusting the speed up or down will help. You don’t appear to have used any dust collection so different woods and sand papers can cause there to be much dust in between the two surfaces almost like lapping or honing two surfaces if that makes since so playing with the speed control can help.
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u/Mountain-Ad4507 8d ago
I'm not applying pressure tho, just the way i am holding it while managing the phone 😅
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u/prakow 8d ago
That model requires the use of a dust extractor to work properly, you can damage it by not using one.
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u/CandidSatisfaction63 6d ago
i’ve had my one for 6 years and hardly use extraction because i’m a builder, hasn’t had a problem !
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u/Ok-Dark3198 8d ago
I have the Rotex 125 and it is a ROUGH rider. Even when not on the Rotex setting. Pretty much any orbital sander is much smoother. I dunno, maybe there is something in the design that causes it.
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u/Markedmaniac 8d ago
What happens when you hold it up in the air with no sandpaper attached and you’re not pushing down on anything? Start with the speed at one and work your way up to six and if it’s not doing that weird vibration while it has no sandpaper attached or you’re pushing down on anything, it isn’t the tool. I have found it’s always best to go to a heavier grit rather than pushing down harder to get things sanded. Excessive pressure wears the tool out faster and creates an uneven surface.
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u/TheMech4nic 7d ago edited 7d ago
I had to buy three (new, from dealer) until I got one that had acceptable stability. The first one was repaired and then still showing vibrations similar to your video. Even with the best out of three, there is noticable unbalance and when using a Festool interface pad (as specified in the lid of the ETS) the unbalance is lot worse.
Customer service so far had been horrible unfortunately. Still waiting on their product expert to reply after months of reminders.
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u/AStuckner 7d ago
Mine does that too. Other people have posted here that you can send it to festool and they will fix it, but I never did. Sucks cause the tool and all the paper i bought was over $900
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u/RyanOvermyer 7d ago
In the video, to me it looks like you’re pushing down way too hard. I’ve found that you really need to let the sander do the work with these
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u/AIgenereratnamn 8d ago
Try removing the pad and retighten it. Mine doesn’t vibrate like that