Messages

141

General Mach Discussion / Re: Tangential Control

« on: February 25, 2016, 08:39:53 PM »

HIYA Ian , I see what you did  (;-) .  Does it work

(;-) TP

142

General Mach Discussion / Re: How many people here are running mach3 on industrial machines?

« on: February 25, 2016, 08:34:29 PM »

A big machine is going to be POWER hungry any way you look at it. Speed cost money how fast do you want to go ?   Dependabilty cost money how dependable do you want it ?

For the most part Mach3 cannot do 3d HSM type motions FAST as it is limited by thoughput and teh Z accel values which goes BACK to money and how fast do you want to go.

Mach3 can be a great hobby controller within th boundaries of hobby type work and within teh Simple realm of hobby Gcode. When you get beyond that point it suffers from glitchs and bugs that will NEVER be fixed and can break parts and tools and you really don't won't to walk away from it often.

IF you want to have/run a commercial type machine buy a commercial type machine or at least upgrade it with a commercial control that is a  proven performer. BUT be prepared to spend some Cash on it cause it ain't cheap.

Just a thought(;-) TP

143

General Mach Discussion / Re: Mach 3 PWM signal inverted?

« on: February 25, 2016, 04:37:23 PM »

Good Luck Russ ,   

144

VB and the development of wizards / Re: message if the Y distance is to big

« on: February 25, 2016, 02:14:06 PM »

I don't have any idea what teh message said  but you need to develop a stop mechanism IF the answer said it failed.

If GetOemDro(151)<1750 Then
MsgBox ("MSG,te groot voor de tafel!")
Dobutton(3)   ' Cancel the Gcode program if loaded
End               ' End the script

ELSE

Do what ever

End If

145

G-Code, CAD, and CAM discussions / Re: The Arc Command

« on: February 25, 2016, 01:27:21 PM »

NOW according to SMID  The arc swing is a mathematical reference NOT a machine plane reference. (;-)

2nd edition Page 240


(;-) TP

146

G-Code, CAD, and CAM discussions / Re: The Arc Command

« on: February 25, 2016, 12:43:29 PM »

IF you only look in teh Y- direction you cannot define G18 arcs as the arc is inline with your veiw.

Here is how I look at it.  Always start by standing in front of teh machine. In G18 teh Z+ is up and teh X= is right. ( For Quadrant #1 that is, but Quads are a different chapter.)  Program a G2 andG3 and see where they go. Draw a picture or write it down.

NOW for G19 assuming a right hand approach MOVE to teh right hand side of teh machine and veiw it. Z+ is UP and Y+ is right. Program a G2 and G3 and note the motions

THen when you are creating 3d Gcode ( and few ever do by hand) refer to the Example veiws.  

Trying to explain it in a way that is not based on a standard gets very confusing as everyone has a different approach and some are backwards to others.

Not saying any way is wrong as long as you get the idea.  Kinda like drawing in CAD there are dozens of ways to draw a simple part. And the finished part will look the same.

BUT IF you are going to explain it you need to reference a KNOWN standard that is defined by the general CNC world.

(;-) TP

147

General Mach Discussion / Re: X and A

« on: February 25, 2016, 12:31:15 PM »

IS this a LPT version or outside controller ??

(;-) TP

148

G-Code, CAD, and CAM discussions / Re: The Arc Command

« on: February 25, 2016, 11:28:20 AM »

Trying to explain G18,G19 arc orintation can be confusing . Even Smid makes it very confusing in teh 2nd edition page 240 (;-). His pictures LOOK good until you realise his axis orintation is NOT what you see standing in front of the machine. You would have to flip and rotate his picture for it to fit a normal machine for G18,G19.

Best way to figure it out for yourself is to stand in front of your machine then program it both ways and SEE for yourself where is goes. THEN write it down, draw yourself a picture.

I would refrain from doing an explaination based on standing behind teh machine. Give your examples as standing in front of the machine assuming teh Right Hand rule.

(;-) TP

149

General Mach Discussion / Re: How many people here are running mach3 on industrial machines?

« on: February 25, 2016, 11:15:53 AM »

Yep your title is deceptive .  YEs you can convert a machine. It will depend on what you want to do with your machine. And yes as Gerry pointed out there are other options for controllers as well.

IF I were going to buy a commercial machine such as a VMC I would look for a good used machine that ran. Bargains can still be found. NOW IF I wanted teh Conversion experience as part of teh hobby then by all means see if you can buy a machine with dead controls.

When you do that be PREPARED to spend a LOT of time and a LOT of money getting it up and running as well as it would run with teh original controller.

(;-) TP

150

General Mach Discussion / Re: Concrete printer anyone?

« on: February 24, 2016, 11:14:59 PM »

oK the video I saw was from 2012 so what controller ran ethernet in 2012 ?

(;-) TP