Messages

1211

General Mach Discussion / Re: IF you had a NEW controller whta would it do/not do ?

« on: July 21, 2015, 06:54:24 AM »

Hmm..........

The newbie CNC "Shark's" ask the simple question in consideration of  investing.....

So what's the product that you will be selling?
We are confused as we think the base product, still in development, lacks third party application for which you have no control over.
It must work with all the outside influences. I don't want to buy a car and wonder if the rims and tires I have will fit.
What's the  investment cost today? When will I be able to upgrade?
 
Commercial break...............

So what do you think the newbie's  said  after the break?

Just a different thought process to consider,

RICH


 

1212

Show"N"Tell ( Your Machines) / Re: High feed speed on router results in rounded edges

« on: July 19, 2015, 10:27:17 PM »

xxtoni,

My question now is...does this really matter ? I mean does it affect the cut or wil it in the long term do
 mechanical damage to the machine itself (rails, bearings, ballscrews, servos even) ?


How are machines made more rigid so that things like this don't happen?

--------------------------------------------------------------------------

Good ones are enginieered and include historical experience that works.

For every reaction there is an equal and opposite reaction. F=MA

In good design the components are selected and properly mounted to absorb
or transmit the forces based on what can be generated by the other components of the machine during
 operation or even an upset condition. Life expectancy can be estimated for both accuracy and longevity.
There are different approaches to how the design is done depending on vibration, deflection, loading,
 static and dynamic evaluation,etc , etc.based on the machine specs.

RICH

1213

General Mach Discussion / Re: IF you had a NEW controller whta would it do/not do ?

« on: July 19, 2015, 02:55:08 PM »

BTW,
A little history.

It's around 1970 and 8 hours of CAD  is mandated in the course program. The program was to give vision of how things would be in the future.
All that could be done with CAD was make  the curser go across the screen!
We have come a long way baby!

Fast forward to about 1980. AutoCAD is the equivalent of "etch a sketch" , the Bentely brothers are employed by a company which decides to make a better
in house CAD program. We just ask them do create a command and 4 hours later it's done and being used, one of my requests was cut, copy, move  and paste selected items from the drawing.  ...it took 8 hours since the initial version had a few bugs that had to be worked out. That CAD station cost a 1/4 million!
Talk about working with the best in  industry and cheaply priced software today!

OK back to topic .............,

Sorry one more....
The niece noticed my slide rule and asked what it was. I said it was my old computer. She said that they sure did make computers small back then and that it didn't have a
any  batteries. Yep, I replied , they were the good old days! 
RICH

 

1214

General Mach Discussion / Re: IF you had a NEW controller whta would it do/not do ?

« on: July 19, 2015, 02:29:40 PM »

Hey Terry,
For the Mill it's easy, as I just put the tool into the collet, make straight moves to where  I want it begin ( I know that spot since I defined it in  CAD and CAM).
then open the file and let Mach run the program.

I don't have any switches, homing,  motor control, tool changer, no need to even open the tabs, etc, etc. All that stuff is just there should I need it for some reason.
All that other stuff is on the screen to give me something to look at while  and keep me from failing got to sleep.
All the wizards are not really needed as the CAD / Cam does all the work generating pre compensated code. The configuration is probably never changed. The machining may be piece meal work, but, usually the work is one of a kind.

That's as bare bones as one can get and has served me well for years.
The only thing that comes to mind of particular use are the MPG's and they are used to go fast or go slow.

Same could be said for the engraving machine.

Now make no mistake about the following. I design my work, not just draw it, and put good machining and engineering practices into the
design. I also like programs that give me a lot of control over what I define for the machining, yet there are those that say they would never use
that program because it needs input! Yet they will use a whole bunch of wizards to do something.

When the machine shop that is making the parts is just a telephone call or 5 minute walk from you are you quickly get feedback
on your design and sometimes it's not what can't  be repeated in public.

--------------------------------------------------------
Now let me inject some ridicule into the CAD / CAM side and it is true in the industry.
There are those that can generate the most complex things in CAD , BUT, they  couldn't design something if their life depended on it, and it is getting even worst
today. Ever wonder why some companies won't even employ someone as a designer unless they have a 4 year degree.

RICH






 

1215

General Mach Discussion / Re: IF you had a NEW controller whta would it do/not do ?

« on: July 19, 2015, 08:59:20 AM »

Hobby CNC Definition - SMALL LEVEL

1. No knowledge of Gcode at all and could care less about it.
The only thing needed to learn is to be able to move the axes in a straight line
at some rate in permissable directions.The gcode is totaly transparent to the user.

2. No knowledge of basic machining which includes setup of material, all the associated
feedrate stuff,etc and does not want to have to tell the machine anything.
Will only purchase a generic mill tool set ( small, medium , and large set) and no
machinist tools.

3. No desire to create a screen, do programing, etc.

4. No knowledge of controller configuration and could care less.

So simply said, the user just wants to put some stock in the machine, press START
( to start the process) RUN ( to let the machine do the program) and Finish ( to shut
everything down when done).Start just prompts you to insert a tool, define what  
machine you are using, and then you just move near the material, close the machine
door, and select the program to be done. Run just starts the machining.
 

So the screen set is just one page and has almost none of the typical options.
Just DRO's to show axis movement "and they are only numbers", a graphics area, and
there are no additional tabs, like disagnostics etc. All you have are some jog buttons
using only the keyboard to move the axis. New language required so get rid of all
those goofy terms and definitions.

SO...........

For the user the only thing they can do via the screen is move the axis
up/down/left and right or click a button to find the material.

So the burden is shifted from the controller interface to the 3D CAD/CAM.
Yes you will need advanced "finding" to automate things.

So the "Package Deal" may be a dedicated computer to a dedicated contoller system
and supplied with 3D CAD/CAM system.Heck throw in a dedicated machine.The difference
between "levels" of hobby are just how much control and what options are provided to
the user for the "system" based on what will be done.

The new generation lives in a visual world.
WYSIWYG....WHAT YOU SEE IS WHAT YOU GET! ......remember that saying for CAD.


To summarize it all.................
There is no setup, configuration, or gcode required to speak of.
User wants more control to do something or control the machine then buy the next level of
package!. The levels comes in small, medium and large.
Maybe also need the supersize for the industrial guys.

Removed myself from the picture,    
RICH

1216

General Mach Discussion / Re: ref to all problem

« on: July 18, 2015, 10:46:25 PM »

mukeshjangid2225,

I WILL NOT help you until you get a license and may never help you, because you have
tried to skirt the license issue. Thread  lightly ......

Understand the following:

When you try to skirt around the license issue, you INSULT  the very people who would help you by taking advantage of their dedicated free time
to deal problems that may exist because of your pirated software, I would appreciate it if you would  do the right thing.

RICH

1217

General Mach Discussion / Re: IF you had a NEW controller whta would it do/not do ?

« on: July 18, 2015, 07:46:10 AM »

Honestly,
What one needs now / today will not be what they will need tomorrow / in the  future.

So I would like everything available and then pick and choose for my use.

So maybe Mach installation could give installation option list  where one  could tick off what is wanted or would like to change
based on need over time.

So maybe there are a few levels of "Todays" Hobby user and based on some general questions ( below) one would get
an appropriate level of installation. The questions automatically imply what will be used / not used.

1. What machines will be used?
2. Have software to generate code?
3. Will you do any programing?
4. Is  tool probing be required?
5. Is part probing required?
6. etc, etc

BTW, I am working on the  Ultimate Hobby Screen which is truly PLUG and PLay.
Just has 3 buttons....Start, Run, Finish, requires no configuration or knowledge, no mouse or key strokes required,
as all is done visually. Just have some technology issues to solve and it will be done. 

RICH

1218

General Mach Discussion / Re: Arrow keys don't work

« on: July 16, 2015, 11:29:22 PM »

I have read about ya Papa Fabio many times.

I suggest that no one provide any replies to Stuemer until he resolves his pirating behavior.
In particular this thread.

RICH

1219

General Mach Discussion / Re: dispensing liquid with Mach 3

« on: July 16, 2015, 11:16:30 PM »

Terry gave a good example of the syringe pump use.

You may want look at how they are modeling using an Ardurando ? and gcode since that is more like an extruder in functionality
and let me say that it quite impressive, but unfortunately I don't know much of the details.
If my friend can melt polymer line / control it, and lay it down quite accurately I would guess that high vicousity material can be done in a similar fashion.

Just a thought,

RICH

1220

General Mach Discussion / Re: NFS turn metric values for x axis

« on: July 16, 2015, 10:59:25 PM »

First let me say that there is a write up on threading in Members Doc's called Threading on the lathe -Mach3 turn. I covers most aspects of threading but
I didn't cover metric threads so to speak. Have a read of it. It provides for some testing of your lathe!

You need to be using Mach version at least 033 ( see the write up ) or above since  threading was  not working correctly before that. Do not use the threading  diagnostic as that is no longer applicable ( Turn it off) and was done just for testing .

Ezilathe is available for download and has a thread calculator in it which will adjust cut depth based on a sharp v 60 deg tool or one with radius.
In my screen set I have a calc page that does similar but only for Unified threads / Imperial ( I convert if doing metric M profile).
I won't even touch on the different standards used!

The major diameter for a thread has a min and max diameter and depends on tolerance class. Same goes for pitch diameter. To measure pitch diameter you need a threading micrometer, or go no go thread gages,  or use the wire method. Major diameter can be off some but pitch diameter should be within spec ( well I would need to clarifiy that statement but simply said  it is correct - for reasons not worth discussing and is beyond the average user ie; fit verses meeting a design intent ).  

If you have a 60 deg sharp tool accurately set up with no  radius ( no such thing as a zero radius threading tool! ) and start the thread on the Max diameter you will have a different depth of cut than if you had the same tool with a radius, that said...........
I always work / set up  with the max major diameter adjusting cut depth for tip radius so pitch diameter comes out correct.

So have a very close look in the machinist handbook about External Metric threads and also Unified  

Threading on your lathe will only be as good as your "LATHE SYSTEM".
Try doing a 0-80 or smaller ( almost no room for error ) or doing multi start threads or cutting an acme using a sharp v and alternate flank cutting....
you will quickly find out how good Your lathe system is.
If you have a wimpy lathe than choose a different type of machining to do the threading. Wimpy lathes are limited ....it's a HP and rigidity kind of thing.

RICH