My first CNC plasma

[Walterronny]

Hi guys, im introducing to this world, i have not much idea about how it works really but im trying to reading a lot. I decided to post a new build threard here . ( thread of my introdution http://www.mycncuk.com/forums/new-me...-new-here.html)

Machine i want to build is for exhaust flanges and so, not bigger parts really , maximum size should be 600X400mm, thanks to blackburn for info i will order soon linear rails to them:

linear rail SBR16-1200mm(4 rails+ 8 SBR16UU blocks),SUR | eBay

They told me i would need 690X490mm rails, i assume that will be ok, do they?

Drivers for controll the motors (i assume) will be this:

CNC Wantai Digital Control 4Axis Stepper Driver,24-80VDC/7.8A www.wantmotor.com | eBay

And the motors i will get this :

http://www.diycnc.co.uk/html/cnc_systems.html

I can't design it yet with solidworks since i have not idea about sizes and what other parts i would need really, if any has any input i will appreciate it a lot. Thanks.

Walter .

[Ricardoco]

Hi there Walter, I take it you have got a plasma to start with.. For the height control you can do it manually or just get one of these units to put on to your plasma..
Proffessional Compact CNC Plasma THC Controller ( Torch Height Control ) | eBay

They are very good and save a lot of headaches if you choose to cut thinner metal it can warp and cause you problems.. this unit takes away all the pain.. there are some pictures and instructions of the setup at the bottom of the page, ive fitted a couple of these and was very impressed..

I am building a plasma/router myself at the moment. I will keep an eye on your thread and if i can help in any way let me know, ive been using the plasma at least once a month lately as im building an american hotrod (40/32 ford with hemi motor) as a side project, so you can see my need for a cnc as well for fabrication

Rick

[Walterronny]

Hi, woow!! great info!

i havent plasma yet, i really havent any parts, just reserarching info but next month i will begin to buy some parts like linear rails and motors..

what plasma machine do you use? what is the maximun thickness machine cuts?

Any info , pictures about router will be appreciate it alot.

Thanks Rick!

[blackburn mark]

They told me i would need 690X490mm rails, i assume that will be ok, do they?

normally we would have our bearing blocks further apart than this however I’m assuming Chai understands that this is for a plasma cutter and has calculated that having the two bearing blocks tight up against each other will work fine in this application
personally i would be more comfortable with 50mm to 100mm gap between the blocks especially on your X axis (making the rails 790x590)
But I think I may be being over cautious

Your drawings don’t have to be perfect :)
it is a good idea to show some drawings before you commit to buying equipment as it is quite to easy to overlook something simple

good luck :)

[Ricardoco]

I have a Cut 50 and it will cut 10mm at a push but it is rated at 8mm. and cuts that easy. Do you have a compressor for the plasma yet? Remember Dont just buy the first hardware that you get told about have a look around and see if you can get a deal or bargain, the further you can get your cash to go the better later on.. Plan it, post it, re-plan it, re-post it, and so on..

Rick

[D.C.]

And the motors i will get this :

http://www.diycnc.co.uk/html/cnc_systems.html

The same motors are cheaper here:

Nema23 3.1Nm

[Walterronny]

normally we would have our bearing blocks further apart than this however I’m assuming Chai understands that this is for a plasma cutter and has calculated that having the two bearing blocks tight up against each other will work fine in this application
personally i would be more comfortable with 50mm to 100mm gap between the blocks especially on your X axis (making the rails 790x590)
But I think I may be being over cautious

Your drawings don’t have to be perfect :)
it is a good idea to show some drawings before you commit to buying equipment as it is quite to easy to overlook something simple

good luck :)

Hi, i see, well, maybe i will order 790 X 590 for going safe!

Abot drawings, i will try doing that this week begining drawing rails :)

[Walterronny]

I have a Cut 50 and it will cut 10mm at a push but it is rated at 8mm. and cuts that easy. Do you have a compressor for the plasma yet? Remember Dont just buy the first hardware that you get told about have a look around and see if you can get a deal or bargain, the further you can get your cash to go the better later on.. Plan it, post it, re-plan it, re-post it, and so on..

Rick

Good info! do yo can shoot some pics of 8 and 10mm steel cutted by Cut50 please? i was thinking in to get that plasma too!

Thanks for comments.

[Walterronny]

The same motors are cheaper here:

Nema23 3.1Nm

great! thanks! i will ask for shipping cost .

[Walterronny]

Just had some times to draw motors, havent...more sizes so i got this according drawing from here Nema23 Stepper Motor 3.1Nm x 3

3 motors i will need :)



I will make motor mounts and post here