Homemade CNC Router for Oxy and Plasma

Hi!
I'm from Portugal and I have some doubts and i like know if any one can help me.
I'm new in this area and i want make a router for me.
I make a diagram and i like know your feedback and if is possible do this router.
Hope I have some answers for my questions, and i will make a diy step by step whit photos as draws in the construction.

BigJohnT wrote:

andypugh wrote:

BigJohnT wrote:

When combining functions like plasma and router the forces that the drive system sees are very different as plasma has no load from cutting while a router does

it might even be worth considering a lightweight fast gantry for plasma and a slower, stiffer one for routing.
(it might even be possible to run both at the same time)

My lathe/mill is set up a little like that. Depending on which configuration file I load different combinations of motors are active, and have different names.

Yep with a machine that big you could park the unused gantry at the end...

JT

Hi!

I'm glad to heve some feedback from you.
I have a CNC with Oxy Fuel and Plasma but is a machine with more than 30 years.
There is here some photos.











My idea is make one with this kit

www.omc-stepperonline.com/3axis-nema-34-...m708-ozin-p-187.html


I need a table with this dimensions because I work with some suppliers who have sheet metal with 6.000m x 2.000m and bigger to make boilers like the Alstom. But I'm so bad in linux and CNC and i dont want wast more than $5.000 to $6.000 USD, becouse I bught 3 years ago, a waterjet machine and cust me more or less $250.000 USD is a TCI BP-A 3-2040-1 is a machine with 4.000m x 2.000m work area.

There is here some photos.









So I real need help from you the experters to buil a great machine at low cust if is possible.

Sorry for my english is so primitive and bad.

hi i own about 4 of this and we are every evening in our IRC channel

firs this mashines can also be run on nema23 at 30:1 worm gear
i use the Leadshine 880A and the mesa 7i76 for controlling them at 78V

the mashines are able to move 6m/min 8hr long workshift with no single steplos

mashine is on Rack and pinion Maedler.de
frame is standard I-type steel pricise metal rolles in a U-steel YZ at 7,5m X

you can also use the SBR25 if it is more commen but not nessesury
its a gantry XY 2 steppers etch axis as YZ has more then 500kg

LOOKING forwaard to see you on the IRC freenode #Linuxcnc
about 120 people are there to give you live help

Hello.

I am also in Portugal and I made a few machine with LinuxCNC so I can help you (also a plasma)
My last retrofit was a water jet machine, 4000bars.
Where are you located?
I can advise you with power supply's, motors, interfaces and so on.

In your initial post you placed Nema 23 or 24 motors.... I do not think so. You know that the environment of a plasma or oxicut is very bad (much metallic dust), and you need a machine to work (from what I saw in the pictures) not to play with, so you must think in a stronger solution.

Hi!
How are you Filipe? Nice to see you here.
I'm Nuno, work for Bruno in Setúbal
You have make a really, really good job in the waterjet machine.
We are trying make a Oxy Fuel and a Plasma machine in our workshop, i have already drawing machine in Autocad, but like i said, we dont know nothing about linuxcnc and configuration for the machine and many more...
Your software works really good, maybe we can make a deal, you make a basic software to Oxy Fuel and one for Plasma to convert DWG to G-Code
Thanks again for your feedback, keep doing greater works.

Abraços e bons trabalhos.

Thank you,
but still there is some issues in the waterJet:
- the deceleration issue that we though was made, but it is not yet correctly implemented.
- the control in Z (almost made)

Making a large machine (being your first machine) can be challenging with a lot of traps, but with the help of this forum, many things can be done.
Your initial approach (hardware selection) is quite wrong for a professional machine. Go for servos motors + drives and full encoder feedback.

Filipe

Thanks again!
So what you advise me to the machine components/hardware?
What servo motors, breakout board, drivers, encoders???
Attention! This is a test machine and we don't want to spend a lot of money.
We don't want spending more than €1.250,00 in software and hardware (motors, driver, etc...)