Questions tagged [linear-motion]

Use this tag for questions about one-dimensional motion along a straight line.

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Linear rails maintenace [duplicate]

On my delta printer I have linear rails and one of them (rail+block) started squeeking while printing. I have thought about these causes: 1) the rails are not lubricated well enough, they were always ...
4
votes
1answer
100 views

Clearance between moving parts

I am using a Prusa printer to print parts for prototyping. The project I am currently working on needs parts to be able to slide against each other and they need to be printed together. A bit like ...
2
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3answers
91 views

Classifying method of control of 3D printers?

Is there a classification of method of control most (FDM) 3D printers fall under? From a 1986robotics textbookref I was reading they defined three classes of control: 1) Pick and place 2) Point to ...
1
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1answer
62 views

GRBL: inaccurate on X axis by ~4 mm on 400 mm

This is GRBL-related. I have a laser-engraver type machine, Chinese, ~550 mm X axis, aluminium extrusions, 2mm-pitch T belt, Nema 17H3430 motors, one mechanical homing switch for X, Arduino-based. ...
1
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1answer
189 views

Can linear guide rails be joined?

Take the standard Hiwin rail, as commonly used in 3D printers: They come in a max length of 2500 mm. Let's say I need twice that. If I connect two rails together end to end (as a "butt joint") and ...
4
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2answers
2k views

What grease to use for linear rails?

What grease to use on linear rails to make them stick as little as possible? I've tried so far: WD40 (let’s not start a discussion about that please), silicon spray and some bearing grease called ‘...
1
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0answers
107 views

Linear guideway with Ball screw for X, Y ,& Z axes [closed]

I'm building a 3D printer for bio medical application and looking for different opinions on motion system. Build volume 400x300x250 mm I'm thinking about using Linear guide way with ball screw Linear ...
6
votes
1answer
1k views

Which is a more accurate linear motion system? [closed]

If someone looking for accuracy, which is the better linear motion system: Maker slide, Smooth rod - bearing, Linear guide way, V slot, Open rail Please let me know if there's a better one other ...
5
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4answers
918 views

Polyurethane-and-steel timing belts?

Has anyone tried the steel-reinforced polyurethane timing belts? If so, how do they compare to the rubber ones?
2
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1answer
464 views

Robotdigg linear guide not smooth motion

I recently bought the MGN12H linear guide and rail from robotdigg, which is supposed to be the copy of the Hiwin. I have noticed that the motion is very smooth when moving fast, but if I move it very ...
17
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2answers
15k views

Why all the excitement about linear rails?

Whenever a 3D printer that uses linear rails is announced (case in point: the cetus), the Internet (well... at least that corner of it dealing with 3D printing) gets abuzz with excitement. I ...