[kevin swan]

yes 65 amps should my 55 amp miller does. more may be better good luck

[bekx]

how about piercing delay in sheetcam?

i ordered a machine torch today.. and it's in stock, 600 euros +vat...

[Normsthename]

the onlY sheet around was a 0.6mm stainless 304 . it warped like hell

For cutting thin material you need a water table.
I cut 1.5mm Stainless Steel on my Plasma with a water table and it cuts nice and flat
I have not had a chance to cut thinner material yet....

how about piercing delay in sheetcam?

In my Hypertherm manual it lists all the pierce delays
On 1.5mm Stainless there is no delay.
For 12mm M/Steel it is 1.5 seconds (I think from memory....)

Andy

[lamicron]

"For cutting thin material you need a water table.
I cut 1.5mm Stainless Steel on my Plasma with a water table and it cuts nice and flat"

Andy, do you cut the material under water ??

[Normsthename]

do you cut the material under water ??

No, the water level is approx. 1/2" (12.7mm) underneath the material.
It is not recommended to use a Hypertherm machine torch under water.
With my setup as soon as you pierce the material, the compressed air blows thru' the pierce hole and causes the water underneath to 'bubble up' this cools the metal as you cut
Also, as soon as there is a pierce line made, the water gets forced up thru' the slit and onto the top surface of the sheet which also cools the metal.
When you do a new pierce, the air pressure blows the excess water away so the torch never actually gets wet.

Hope this helps

Andy

[lamicron]

Thanks Andy, I´ll be cutting next week and have a water table.
But I have seen a video at http://www.sme.org/cgi-bin/getgmnpag...ETV.htm&&&SME&
There they was cuting with the torch itself under water.. the video is no longer available, it was about all cutting systems.
Luis

[Normsthename]

I have seen videos of Plasma cutting under water, but there torches are rated for underwater cutting.
The Hypertherm machine is not rated for underwater cutting.
I once had my torch cut the outside profile first before the inside.
The torch lowered down into the water by about 2" before I stopped it!
I had to clean the torch out, and dry the insides before it would work again....

Andy

[lamicron]

I think your face really looked like the icon!!! after that you really need Ativan....

[bekx]

so water tables actualy do more then just geting rid of the smoke.

i must think about this,it will not be so easy to get a water table inside now.

[Normsthename]

If I were building a MK2 Water Table, I would incorporate a reservoir tank to be able to raise and lower the water level.
That allows you manually raise or lower the water level using air pressure.
This allows you to emty the tank to retreive small parts in the bottom of the tank easily, and also you can clean the segiment out easier.

I am trying to modify my existing water table by using a 14 gallon Beer Keg for the reservoir.
I will put a fitting into the bottom of the Keg that connects to the water table outlet.
Then in the top of the Keg I will put two Ball Valves.
One attached to my air supply, and another as a vent.
When I want to empty the water table I open the vent letting air into the Keg allowing the water to fill up the Keg using gravity feed.
When I have collected my cut parts, or finished cleaning I close the vent and open the Air valve to force the water out of the Keg using air pressure and back into the Water Table
There are some good examples on this forum, do a search.....

Andy

[bekx]

hey, that's what i want to do with the water table, if i get work with thin sheet ..

i just made a hole thru 10 mm plate it took about 2 seconds.
i have to wait for the machine torch to make exact setings.

why do manual torches have better piercing and cuting tolerances..???

[Normsthename]

why do manual torches have better piercing and cuting tolerances..???

With a hand torch when cutting thick materials, you angle the torch to start the pierce.
Then when the material has pierced thru' you bring the torch back upto vertical.
You can't do that with a machine torch!

Andy

[bekx]

they don't say anywhere in the manual to angle the torch..well i never pierced manualy, tried once but too much sparcs on me and give it up, with the cnc i have no fear, i'm behind the monitor and pc )
the machine torch arived 10 minutes ago..they mixed up the consumables uff

hey, now i realised i pierced the 10mm plate at 40 amps so at 60 i hope it will pierce at least 12 mm, i think most jobs will be from 4mm to 12mm.

i got some rfq's for cuting 10mm stainless plate, i'm a litlle afraid to take the jobs, one plate is about 1500 euros, think i'm going to start with some steel

[bekx]

so i made a movie finaly.

http://s303.photobucket.com/albums/n...asma1-0001.flv

[bekx]

the thc arived !!!!!! and the home made z axis too,, installed the axis, didn't have time for the thc yet.

Tx Tom.. very fast delivery and very well packaged (love the buble bags )

[cristian gabor]

hi
how is you lincon plasma working ?
how muchy did you pay for it ?
i'm in the midle of my cnc plasma project and i don't know wat to chose
is the THC working on it ?
thank you

CRISTIAN IASI

[bekx]

hi, i saw your tread , Lincoln does work , i cut 10 mm plate with good results, without thc i seem to use one nozzle for 2-10 piercings and no more then 1 m cuts.

If u got the money go for hypertherm, u got cnc interface and non HF start , while i got no problems with the hf till now , the cnc interface i miss a lot, cause i can't hook up the thc to the Lincoln yet.

So thc not working, though i can use the table with the mp1000thc hooked up.

I've seen your thread, well can't say the angular steel is the best idea, it has virtually no structural strength , it might work but it could get u a junker machine

Well if u from Iasi i guess i can tell u more on yahoo mess.