2nd Hand Printer with paper underneath?

Hello everyone. I recived a broken 500mm ratrig 3.1 as a gift. After some lovely people in the fix my printer channel helped me get it going again i am now trying to level the bed. Upon Closer inspection there appears to be many paper shims between the PEI and the magnetic pad. After Removing the shims this is my mesh result. I will send a picture of the mesh before I removed the paper. I do not beleive this is a common practice? I assume the possibility frame isnt square and they did this as a stop cap.
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35 Replies
E-TF[102] Riker
E-TF[102] RikerOP15mo ago
With Paper Shims
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E-TF[102] Riker
E-TF[102] RikerOP15mo ago
Without Paper Shims
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SYG|Krizalid87
SYG|Krizalid8715mo ago
it's a "common" practice when you want to manual "level" the bed without touching the frame. Not paper but tape. In this case you must follow the video for fix your gantry
E-TF[102] Riker
E-TF[102] RikerOP15mo ago
Yes I was watching this just a moment ago
SYG|Krizalid87
SYG|Krizalid8715mo ago
3D Printers & a Whiteboard
YouTube
RatRig V-Core 3: How to Get a Square Frame
This video is for those who struggle getting bed meshed with their RatRig V-Core 3. Please feel free to jump to the chapter you are interested in. 0:00 Intro 1:05 about the v-core 3 frame and bed leveling 8:26 what to take care of in the building phase 9:17 the right square 10:09 build tips 16:50 adjusting the frame according to your bed mesh ...
E-TF[102] Riker
E-TF[102] RikerOP15mo ago
This was the kind of paper, craft paper. (Ignore the donkeys in the background)
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SYG|Krizalid87
SYG|Krizalid8715mo ago
just try to raise only A (left side) and heatsoak your bed
E-TF[102] Riker
E-TF[102] RikerOP15mo ago
Sorry I don’t follow 😅
SYG|Krizalid87
SYG|Krizalid8715mo ago
before running a bed mesh warm your bed for example at 65° for about 15-30min then make a bed mesh
E-TF[102] Riker
E-TF[102] RikerOP15mo ago
ok
SYG|Krizalid87
SYG|Krizalid8715mo ago
you must consider the metal expansion
E-TF[102] Riker
E-TF[102] RikerOP15mo ago
so from my mesh i should raise the a side? ok will give it a go now
SYG|Krizalid87
SYG|Krizalid8715mo ago
a little step by step
E-TF[102] Riker
E-TF[102] RikerOP15mo ago
I did do this a minuite ago but it did not appear to movwe that much. will try again though
SYG|Krizalid87
SYG|Krizalid8715mo ago
just follow the video
E-TF[102] Riker
E-TF[102] RikerOP15mo ago
Im having no luck with raising a. Maybe I have to lower the motor size :l
E-TF[102] Riker
E-TF[102] RikerOP15mo ago
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E-TF[102] Riker
E-TF[102] RikerOP15mo ago
it appears to have gotten worse :l 0.7 range
Decker
Decker15mo ago
If you run two in a row, with no other changes, are the results consistent?
E-TF[102] Riker
E-TF[102] RikerOP15mo ago
yes they are the same i will experiement with the shims the previous user used i managed to get the red side down via the hammer method
E-TF[102] Riker
E-TF[102] RikerOP15mo ago
yes after shimming around a bit i got it down to this
E-TF[102] Riker
E-TF[102] RikerOP15mo ago
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E-TF[102] Riker
E-TF[102] RikerOP15mo ago
the problem is the whole printer has been assembled incorrectly and there has been alot of bodges. at somepoint i will do a full rebuild After messing around with some shims i got it to 0.215
E-TF[102] Riker
E-TF[102] RikerOP15mo ago
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E-TF[102] Riker
E-TF[102] RikerOP15mo ago
Acceptable for a 500?? Or should I strive for more @antmit I think I found the core of all my problems
E-TF[102] Riker
E-TF[102] RikerOP15mo ago
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ant
ant15mo ago
An unused tnut?
E-TF[102] Riker
E-TF[102] RikerOP15mo ago
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E-TF[102] Riker
E-TF[102] RikerOP15mo ago
The acrylic is raising the extrusion too high making it not square
ant
ant15mo ago
Is it flush on the other end?
E-TF[102] Riker
E-TF[102] RikerOP15mo ago
yes
ant
ant15mo ago
Time to measure and see which one is off. Acrylic could be right and the extrusion is short
E-TF[102] Riker
E-TF[102] RikerOP15mo ago
I have the delta down to 0.195mm is that ok for a 500mm bed? i dont think im going to get any better without the full rebuild
ant
ant15mo ago
that seems fine to me unless you print a 500mmx500mm part (unlikely) it probably won't matter

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