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Re: New people welcome !! Come in here and introduce your self!
« Reply #2200 on: November 10, 2015, 03:51:13 PM »
greetings Tweakie and my namesake, mark. Many thanks for your response, yes i have watched many of the above tutorials, but actually learn and attain new knowledge on the re-runs, wether 2nd or 10th :) i may know some of them word for word soon, and who knows, maybe one day , i too will be able to make my machine play an old  musical classic :) have made great headway, in the short time on this knew found passion, and am wrangling with the terminology. i am quite confident, i soon will have grasped a greater understanding of the basics, but for now i am a happy eager student. i believe it wont be long till i too, will be jumping up and down,, ill check out Chris.bothas threads, and hopefully will be able to add to my minuscule knowledge of all the above.

yes i am casting gold and sometimes silver, all types of jewellery, centrifugally with the lost wax method, so generally my machine will be used for mainly Wax milling.  Many Thanks and Kind Regards, Mark.
Re: New people welcome !! Come in here and introduce your self!
« Reply #2201 on: November 10, 2015, 06:29:01 PM »
My name is Valerie my husband and I live in Belgrade, Mt. I am starting my own business building custom acoustic guitars. I am retired from Gibson Acoustic guitars after 24 years. I built custom guitars at Gibson I also learned to program(mastercam) and operate the cnc machines(fadals).  My husband is an upholsterer and has used our Vortech router for various jobs(photo vcarve & furniture parts). I am using it now to make guitar parts and I am finding the x & y axis are off. I have been trying to cut fret slots in guitar fretboard. The farther it cuts down the fretboard the more each slot is not cut at the right distance. The g code is correct but the machine is not moving the correct distance. Can anybody help please:)
« Last Edit: November 10, 2015, 06:33:24 PM by bolitho guitars »

Offline Tweakie.CNC

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Re: New people welcome !! Come in here and introduce your self!
« Reply #2202 on: November 11, 2015, 01:21:01 AM »
Hi Valerie,

Welcome to the forum.

To check your settings for each axis (Steps per Unit) go into the 'Settings' screen and click 'Set Steps per Unit' - follow the on-screen instructions for calibrating each axis. (the Mach3 manual also gives details  http://www.machsupport.com/help-learning/product-manuals/ )

Tweakie.
Success consists of going from failure to failure without loss of enthusiasm.  Winston Churchill.
Re: New people welcome !! Come in here and introduce your self!
« Reply #2203 on: November 16, 2015, 12:03:22 PM »
Hi,
Can anyone tell me whether it is possible to time how long an instruction takes in G code?  I want to optimise the settings for my motor (best acceleration and speed)

Thx
Prashant
Re: New people welcome !! Come in here and introduce your self!
« Reply #2204 on: November 16, 2015, 04:58:03 PM »
Hi, looking forward to learning as much as I can.  I'm a RC hobby guy and just finished building my CNC.  I'm using mach 3 which I'm just trying to learn.  I'm proficient in Autocad and plan on doing my drawings with it.  I believe I'll be generating g-code with Lazycam. Total newb with most of this stuff.

Mike
Re: New people welcome !! Come in here and introduce your self!
« Reply #2205 on: November 17, 2015, 07:11:07 AM »
Hi all, Dario here from Portugal.

Worked mostly onboard ships for the last 5 years as an engineering officer, where I did quite a bit of lathe and manual milling work. Finally decided to start my own business and want to provide cnc milling services to my customers. I had a brief experience with cnc when I graduated in Mechanical Engineering from Coventry University in the UK so I have experience with CAD/CAM. However I have hit a wall with my setup(Optimum BF46 and Optimum Controller IV)  :( It appears that my setup will not accept step/direction signal from Mach3 which is a real shame as I quite like the software and the interface it provides. Manufacturer(Optimum) have been of no use really and I have yet to find someone here who has same setup and manage to find a working solution.

Hope I can solve this soon as I want to see chips fly!!!!...and touch wood not many broken tools.

Cheers
Dario
« Last Edit: November 17, 2015, 07:15:35 AM by Darius_ajm »
Re: New people welcome !! Come in here and introduce your self!
« Reply #2206 on: November 17, 2015, 03:16:11 PM »
Hi I am Hurkan, I love carving with cnc. I can say that I am new at this issue but I really loved it.
thanks.
Re: New people welcome !! Come in here and introduce your self!
« Reply #2207 on: November 18, 2015, 10:08:19 AM »
Hello,

My name's Tony and am totally new to CNC. I am doing my homework and collecting parts to make a CNC Plasma table over the Christmas break.
I already have one problem that I have tried to find an answer to but so far no joy!

I have a geared 24v DC motor to control the Z axis but cant see a way in Mach3 to control the direction? This isn't a stepper or servo, just reverse the polarity for direction change. I have no problem in sorting out a system of relays to change direction but need a signal from Mach3, one for up and one for down.

Any clues as to my next move?

Thanks in advance for a great forum, I've been all over it looking for an answer!

Tony

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Re: New people welcome !! Come in here and introduce your self!
« Reply #2208 on: November 18, 2015, 10:34:21 AM »
Hi Tony,

Welcome to the forum.

Mach3 outputs Step and Direction signals for each axis. The Z axis Direction signal will change between TTL level High or Low dependent on the last command it was given (up or down). It always retains the TTL voltage level from the last command given. You would need to detect the step signals to determine movement but you should always be able to get the direction correct.

Tweakie.
Success consists of going from failure to failure without loss of enthusiasm.  Winston Churchill.
Re: New people welcome !! Come in here and introduce your self!
« Reply #2209 on: November 18, 2015, 12:13:57 PM »
Tweakie,

Thank you for the speedy response.

I have a direction now and think I can solve the problem using a 2  TTL driven relays. One to change a relay based on the direction signal, and another to pick up step which should control the on/off I'm hoping!

Thanks again,

Tony

(Sorry if I should not have posted here?)