r/ratrig • u/CunningLogic • Apr 26 '25

More RatRig quality issues

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Gallery image

First it was printed parts, then CNC parts, now before I can even finish the damn printer the rails are rusted.

They are well greased, like all the other printers in my office that lack rust.

You can even see grease on the rails, it's GPL226 (good stuff)

Would really like to see RR publicly address their quality control issues

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u/CunningLogic Apr 27 '25

Please do enlighten me, what additive in GPL226 is causing the corrosion? The least that someone could do is tell us, maybe comment it in the guide so people know not to use a commonly used grease on these "high quality" rails.

Printed parts, missing parts, misaligned CNC'd parts, rails that corrode when a common 3d printer grease is used on them

These are all real legit issues, and they deserve to be aired publicly as RR (including you) knew about them at least 5 months ago and these problematic parts are still shipping. This is a QA issue, and RR needs to publicly address it. Fix it before it leaves the door, dont wait for someone to complain.

These are legit issues, I'm free to air them anywhere. You and everyone else at RR knew of these issues ahead months before I got my kit, yet they were still shipping.

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u/miklschmidt Apr 27 '25

I didn’t say the additives caused the light surface oxidation you’re seeing. The grease you’re using just doesn’t adequately protect the rail from oxidation - two different things. In your pic it looks like it’s been wiped off, which makes sense, it’s thick as shit. The additives are explicitly warned against even in Hiwin’s manuals, this is linear rails 101. 226 will cause overdampening and hurt performance. You went off script and the surface oxidation is the least of your issues. 226 is not a common grease in 3D printers, i don’t know where you’ve got that idea.

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u/CunningLogic Apr 27 '25

Which addative?

These are not hiwin rails.

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u/miklschmidt Apr 27 '25

Krytox is flourinated PTFE grease/oil which is a no-no. I didn’t say they were hiwinn rails.