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Good Grease for Rods  

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Mike D.
(@michael-d81)
New Member
Good Grease for Rods

I'm running low on the white grease that came with the printer, so I'm looking for a good quality replacement for greasing the rods.  Note that this is a pre-assembled MK3S from the factory, so the bearings are packed with whatever Prusa uses. (if that matters 😀)  So far I've only been using the whitish grease they sell here.

I did see that Chris mentioned MG Chemicals Lithium Grease in his Set Your Bearings Straight post...but wasn't sure if this was the best for my situation.  I'm a little bit of a noob in this topic.

Thanks!

Opublikowany : 30/01/2020 3:45 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: Good Grease for Rods

Hi Michael, 

Last time I bought grease for a prusa, it was 

regards Joan

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK

Opublikowany : 30/01/2020 4:49 pm
rmm200
(@rmm200)
Noble Member
RE: Good Grease for Rods

My suggestion: Don't ever grease the rods.

Pack the bearings with an appropriate grease instead. Keep your rods clean and dry.

And don't ever let any lubricant get on the threaded rod. It is not compatible with the trapezoidal nut.

 

Opublikowany : 30/01/2020 6:47 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: Good Grease for Rods

Agreed, it's the bearings that need the grease...   🙂

 

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK

Opublikowany : 30/01/2020 6:54 pm
rmm200
(@rmm200)
Noble Member
RE: Good Grease for Rods

(I took my chances - seeming to contradict Joan. Glad to see I was not too far off.)

Opublikowany : 30/01/2020 7:51 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: Good Grease for Rods

Am I that Scary?

 

Joan...

 

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK

Opublikowany : 30/01/2020 9:06 pm
Nikolai
(@nikolai)
Noble Member
RE: Good Grease for Rods
Posted by: @joantabb

Am I that Scary?

You have the moderator tag. That gives you POWER 😊 

Often linked posts:
Going small with MMU2
Real Multi Material
My prints on Instagram

Opublikowany : 30/01/2020 9:16 pm
rmm200
(@rmm200)
Noble Member
RE: Good Grease for Rods

I don't consider you Scary - I consider you a Knowledgeable Authority. Far worse to go against without looking like a fool.

Still wonder how big your printer farm is...

 

Opublikowany : 30/01/2020 9:53 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: Good Grease for Rods

@robert-rmm200

Hi Robert,

I own:-

1, my Original, original Prusa i3 mk1, upgraded to mk2 with mmuv1 and mk52 12volt heatbed 

2, a Geeetech i3 ProB chinesium printer. this has never been much use, and is currently sat to one side, awaiting some Tender loving, hammering.

3, a Frankenprusa mk2.8 ish...  started off as a mk2 that arrived whilst I was unwell, it donated some parts to it's older sibling and sat unloved for a while, and was later built with an einsy, 5 volt fans, 24 volt extruder heater, 24 volt mk52 heatbed, 24 volt PSU, 4wire Pinda, and mk3 extruder parts, the Y motor ran in reverse, so I re configured the pinout to reverse the motor!, it's basically a mk3 in a mk2 frame...  Note, you need a mk3 Y carriage!

2a, I ordered an upgrade to the MMUv1... which never materialised...  (Prusa decided not to continue with the MMUv1 development, and converted my order to a mmuv1 to mmuv2 upgrade at no additional cost.

2b, prusa developed a mk2.5 upgrade Pre order (with textured build plate) to permit the use of MMUv2 with a mk2 printer... I bought this upgrade and the heatbed went to printer 1, the  rest of the parts went to printer 2  delayed because of textured build plate, eventually delivered with smooth stickered plate

4,  Prusa Mk3 Pre order... with textured build plate... huge delay, and final delivery with stickered build plate, later upgraded to MMU2 with kit from order 2a...  now with modified filament sensor (Tell tale LED)

2b -1, finally got textured sheet for mk2,5 upgrade

4    -1, finally got textured sheet for mk3

5, Prusa Mk3, with textured build plate....   arrived with textured heatbed 🙂 now mk3S, with modified filament sensor (Tell tale LED)

6,  Prusa SL1 with CW1, Beta test units, arrived before general supply!

and, that's it at the moment...   

regards Joan

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK

Opublikowany : 30/01/2020 11:04 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: Good Grease for Rods

@nikolai-r

With great power comes Great responsibility... 

🙂 

I try not to abuse it!

 

Joan

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK

Opublikowany : 30/01/2020 11:19 pm
rmm200
(@rmm200)
Noble Member
RE: Good Grease for Rods

And thanks for the information about your farm. Makes my MK3S and unfinished Reprap Mendel look kind of wimpy.

(MK3S was needed to make parts for the Mendel. And I wanted one that works.)

Opublikowany : 30/01/2020 11:22 pm
TheGrantz3D polubić
Nikolai
(@nikolai)
Noble Member
RE: Good Grease for Rods
Posted by: @joantabb

@nikolai-r

With great power comes Great responsibility... 

That's why I never accept the moderator role. Your posts are taking completely different (weighs more) if you have this tag. That doesn't apply to this discussion, but in general.

Often linked posts:
Going small with MMU2
Real Multi Material
My prints on Instagram

Opublikowany : 30/01/2020 11:32 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: Good Grease for Rods

Life is a series of tradeoffs!
hopefully, I am doing something right!  🙂

 

regards Joan

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK

Opublikowany : 31/01/2020 12:35 am
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: Good Grease for Rods

the Geeetech had junk rods and bearings, the supplier dragged things out with promises until I could not get recompense.... I should have known better! and claimed earlier!

 

Joan

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK

Opublikowany : 31/01/2020 12:38 am
Steve
(@steve-33)
Eminent Member
RE: Good Grease for Rods

Just to be controversial - see from Thomsonlinear.com  😱

SKF recommend greasing the bearings - it's in this tome of a document https://www.skf.com/binary/56-55843/SKF_6402_EN_11_10_19_GB_high.pdf

It also recommends your remove and clean the old lube out first if over 6 months since last lubed.

Other manufacturers may differ with their recommendations but generally go with the clean and regrease method. As for lube - any lithium based light grease is sufficient for 3D printers. Grease in itself is another story - THK have four different greases for different applications for the same linear bearings!! 

 

Opublikowany : 31/01/2020 12:49 am
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