FAQ's (Motion Transmission,Acme, Ball, Allthread Screws, Cogs, Belts, bearing, etc )

[snooper]

As a noob I'd like to see:

1. Facts about tables and gantries (what are they, advantages of fixed vs moving).
2. What is offset?
3. Basic construction methods (incl levellling out the important parts).
4. Preferred methods of dealing with backlash, whip, resonance.
5. Which types of bits/tips suit which materials?

If I think of anything else, I'll add it to this wishlist...

[Burn]

Originally Posted by snooper As a noob I'd like to see: 1. Facts about tables and gantries (what are they, advantages of fixed vs moving). 2. What is offset? 3. Basic construction methods (incl levellling out the important parts). 4. Preferred methods of dealing with backlash, whip, resonance. 5. Which types of bits/tips suit which materials? If I think of anything else, I'll add it to this wishlist...

Same here, I would like to see:
1. Ball screws and lead screws...What are they/what is the difference
2. Things to look for when buying above screws

[widgitmaster]

Here is an interresting web site explaining backlash in gears!
Uses of Gears in Robotics



Backlash in Lead Screws: What It is and What to do About It
Backlash

[ger21]

Originally Posted by Burn Same here, I would like to see: 1. Ball screws and lead screws...What are they/what is the difference 2. Things to look for when buying above screws

Try this:

Ballscrew Basics

[widgitmaster]

Mechanical Power Transmission

NOOK INDUSTRIES, INC.

[andy_ck87028]

There is an FAQ forum on this website.

Hopefully it will answer many significant questions and avoid the need for data duplication.

If more contribution is required, this thread could become the forum for identifying where that effort best goes.

Andy

[NC Cams]

Answers to the above and MORE:

Research
CNC Information
specifically post #15

Electronics books
http://www.forrestmims.com
or
http://www.amazon.com/gp/product/pro...lance&n=283155

The "holy grail" of electronics info but a bit deep for the DIY CNC neophyte:
http://www.amazon.com/gp/product/052...lance&n=283155

Linear scales;
http://www.cnczone.com/cg...3;t=003181;p=0

Ball screw basics:
Ball Screws 101

Ball screw treatise, the hard core stuff:
Ballscrew Basics

PID tuning
PID explanations?

Daisychaining ATX power supplies:

http://www.cnczone.com/forums/showth...015#post142015
http://forums.bit-tech.net/showthread.php?t=108208

Linear P/S design/construction
http://www.campbelldesigns.com/files...ply-part-1.pdf

Servo amp P/S design
http://www.elecdesign.com/Articles/A...7635/7635.html

Servo motor , servo amp, powersupply sizing for CNC
http://www.rutex.com/pdf/Mystique2.pdf

Bearing literature:
http://www.bardenbearings.com/literatr.htm
http://www.timken.com/products/bearings/catalogs/
http://www.jp.nsk.com/app01/en/catal...gi?ec=bearings

Get the NSK E1102 catalog for starters


Motor torque info/defininition
http://www.merkle-korff.com/formulas.asp#con

What gage wire to use:
What gage wire?
http://www.cnczone.com/forums/showth...480#post136480

Servo vs Stepper:
Steppers and Servos...

Simply stepper info:
http://www.parkermotion.com/catalog/catalogA/A12.pdf

Stepper reverse engineering:
http://www.doc.ic.ac.uk/~ih/doc/stepper/others/

Stepper sizing:
Sizing Criteria for Torque of Stepper motor

Small stepper and general purpose linear P/S
http://www.campbelldesigns.com/files...ply-part-1.pdf

[snooper]

Thanks for all the replies, it's appreciated!

[landart1]

Snooper ................you have asked the Question I was looking for and got the answers I was looking for .Much appreciated.
You have the right user name for sure alas Sherlock Holmes!!!!!!!!!!!!!!!!
Regards Glenn Down under OZ.

[snooper]

[svenakela]

There are a couple of sticky's in the Linear motion subforum about... ...eeh... ...linear motion.
And as this thread is more about motion than mechanical engineering I'll move it.

Regards,
Sven

[andrew888]

Originally Posted by snooper As a noob I'd like to see: 1. Facts about tables and gantries (what are they, advantages of fixed vs moving). 2. What is offset? 3. Basic construction methods (incl levellling out the important parts). 4. Preferred methods of dealing with backlash, whip, resonance. 5. Which types of bits/tips suit which materials? If I think of anything else, I'll add it to this wishlist...

Hello all:

I applaud slooper for asking a most relevant question. I think the
CNCZONE is a wonderful web site, but it lacks organization in getting
newcomers up to speed.

A general FAQ about the most relevant answers to questions about the things needed to make a CNC machine. Once a person gets up to speed with these general answers about the makeup and issues about making a machine, he can ask more specfic questions about making a particular kind of machine.

The CNCZONE is a depositary of creativity and genius, we need to make it where newcomers can share in that genius quickly and easily.

In humble humility,

andrew888