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


snooper
06-28-2006, 02:52 PM
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... :rolleyes:

Burn
06-28-2006, 03:13 PM
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... :rolleyes:


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
06-28-2006, 09:58 PM
Here is an interresting web site explaining backlash in gears!
Uses of Gears in Robotics (http://www.robotgames.net/Resources/Gears/gears.htm)



Backlash in Lead Screws: What It is and What to do About It
Backlash (http://www.liutaiomottola.com/Tools/Backlash.htm)

ger21
06-28-2006, 10:06 PM
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:

http://www.cnczone.com/forums/showthread.php?t=8813&highlight=ballscrews

widgitmaster
06-28-2006, 10:29 PM
Mechanical Power Transmission (http://www.amacoil.com/html/art_12.htm)

NOOK INDUSTRIES, INC. (http://www.nookindustries.com/acme/AcmeHome.cfm)

andy_ck87028
06-29-2006, 06:02 AM
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
06-30-2006, 06:15 AM
Answers to the above and MORE:

Research
http://www.cnczone.com/forums/showthread.php?t=19599&page=1&pp=15
specifically post #15

Electronics books
http://www.forrestmims.com
or
http://www.amazon.com/gp/product/product/1878707035/002-5516032-6344043?v=glance&n=283155

The "holy grail" of electronics info but a bit deep for the DIY CNC neophyte:
http://www.amazon.com/gp/product/0521370957/002-5516032-6344043?v=glance&n=283155

Linear scales;
www.practicalmachinist.com/cgi-bin/ubbcgi/ultimatebb.cgi?ubb=get_topic;f=13;t=003181;p=0

Ball screw basics:
http://www.cnczone.com/forums/showthread.php?t=20748

Ball screw treatise, the hard core stuff:
http://www.cnczone.com/forums/showthread.php?t=8813&page=1

PID tuning
http://www.cnczone.com/forums/showthread.php?t=20927

Daisychaining ATX power supplies:

http://www.cnczone.com/forums/showthread.php?p=142015#post142015
http://forums.bit-tech.net/showthread.php?t=108208

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

Servo amp P/S design
http://www.elecdesign.com/Articles/ArticleID/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/catalog/index.cgi?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:
http://www.cnczone.com/forums/showthread.php?t=17350
http://www.cnczone.com/forums/showthread.php?p=136480#post136480

Servo vs Stepper:
http://www.cnczone.com/forums/showthread.php?t=17419

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:
http://www.cnczone.com/forums/showthread.php?t=17707

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

snooper
07-02-2006, 11:13 PM
Thanks for all the replies, it's appreciated!

landart1
02-27-2007, 04:31 AM
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
02-28-2007, 02:17 AM
:cheers:

svenakela
02-28-2007, 04:55 AM
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
02-28-2007, 04:38 PM
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... :rolleyes:

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

landart1
02-28-2007, 05:36 PM
Good one Andreww 888
Some of us may have trained as brain surgeons,astronauts or Mr. Whippy ice cream pullers but we know Sweet Fancy Adams about how to build a machine to make Bart Simpson cut outs.
Ive got 3 old printers and one scanner and want to make a mini version before the big one.I am still soaking up everything before I start.
Don't want to be a PADWAN FOREVER.
Cheers Glenn

svenakela
02-28-2007, 06:28 PM
Many of the questions are often repeated. So to make a collection of the most frequent topic's I made a FAQ-thread found at http://www.cnczone.com/forums/showthread.php?t=33412.

If you feel for it, contribute. :)

Regards,
Sven