This is my first post. I'm designing a machine tool and I want to know all about linear guides. What kind of linear guides exist? I wish someone could help me.
Thank you very much. I want to achieve a high resolution. Should I use air linear guides?
Here is another link for you.
I am using their modular V rails bolted to 8020 extrusions. They are very smooth and precise.
Linear Bearings, Linear Actuators, Linear Guides, Roller Bearings, Linear Motion Solutions
You may also want to look into a kit. This will take a lot of the design out of your hands so you can focus on assembly. Designing a moderately high precision CNC router can be a challenge, but actually assembling one that lives up to the design is an even bigger challenge, IMHO.
Imaginebreaker, You said "machine tool", what are you wanting to build? Mill, lathe, drilling machine or a router? Actually, it depends on what you want to machine, what will the product be?
It's a mill. Its purpose is make microcomponents or at least components with one of its dimentions in micrometers.
After that, you will want to look into ball screws with sufficient accuracy for your parts. Fortunately, you can get C3 ball screws for not a lot of money on eBay, but the question is whether even that will be sufficiently accurate for what you want to make.
This is the first prototype, so I guess I can achieve a good accuracy if I follow your recommendation. Thank you.
You want to work in microns? How many microns (.000039")? That's fine grinding and lapping territory. Pretty difficult on a DIY mill.
I'd feel satisfied if I can get 100 microns dimentions.