New Plasmacutter
17 Jul 2021 18:03 - 17 Jul 2021 20:18 #215157
by Giuseppe
Replied by Giuseppe on topic New Plasmacutter
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Last edit: 17 Jul 2021 20:18 by Giuseppe.
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17 Jul 2021 21:23 #215173
by tommylight
Replied by tommylight on topic New Plasmacutter
Oh, that is missed position due to steppers loosing steps, or the torch touching the plate and motors skipping due to friction/load.
Also can be due to interference, so move the plasma source as far as possible from the PC and electronics, torch cable also far from other stuff, best hanging from the ceiling.
Also can be due to interference, so move the plasma source as far as possible from the PC and electronics, torch cable also far from other stuff, best hanging from the ceiling.
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18 Jul 2021 14:20 - 18 Jul 2021 14:25 #215228
by Giuseppe
Replied by Giuseppe on topic New Plasmacutter
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Last edit: 18 Jul 2021 14:25 by Giuseppe.
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18 Jul 2021 16:36 #215236
by billykid
Replied by billykid on topic New Plasmacutter
but at what height does the torch travel? Are the nozzles and electrode new? I did a test with mine days ago with a twisted and rusty metal sheet at f1500 and 25 amps. regards Mauro
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18 Jul 2021 17:56 - 18 Jul 2021 17:59 #215242
by Giuseppe
Replied by Giuseppe on topic New Plasmacutter
nice result.
all new, cut high 2mm
i try to cut small pieces and filigrant pattern
but slowly i think this is not possible with plasma cutters.
not the ones in this preice range
all new, cut high 2mm
i try to cut small pieces and filigrant pattern
but slowly i think this is not possible with plasma cutters.
not the ones in this preice range
![:-) :-)](/media/kunena/emoticons/smile.png)
Last edit: 18 Jul 2021 17:59 by Giuseppe.
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18 Jul 2021 20:04 #215247
by tommylight
Replied by tommylight on topic New Plasmacutter
Plasma is a "brute force" type of machine, so not for small or intricate designs, still a lot can be done with it.
What nozzle are you using?
Why 25A ?
-Set it at 40A and try it faster, see how that goes.
-Also, change the nozzle, set the pierce height to 3 or 4mm and test if it fires consistently, try different speeds...
-25A is not good as the nozzle has to be very close to the material
-Nozzle will have to be changed anytime the material flexes when probing and the torch fires very close or touching the material
-use 1mm or 1.1mm nozzle for 2-3mm @ 40A, 1.3mm or 1.4mm for 4-6mm @ 50A
What nozzle are you using?
Why 25A ?
-Set it at 40A and try it faster, see how that goes.
-Also, change the nozzle, set the pierce height to 3 or 4mm and test if it fires consistently, try different speeds...
-25A is not good as the nozzle has to be very close to the material
-Nozzle will have to be changed anytime the material flexes when probing and the torch fires very close or touching the material
-use 1mm or 1.1mm nozzle for 2-3mm @ 40A, 1.3mm or 1.4mm for 4-6mm @ 50A
The following user(s) said Thank You: Coachbuilder
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18 Jul 2021 20:19 #215249
by billykid
Replied by billykid on topic New Plasmacutter
It really depends on the type of torch .. mine for example is a pneumatic s45 torch that can cut in contact with the piece with good results and little power. I have this table but it seems too optimistic
![:-) :-)](/media/kunena/emoticons/smile.png)
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18 Jul 2021 21:17 #215259
by tommylight
Replied by tommylight on topic New Plasmacutter
Yup, those seem to optimistic for a 30A plasma cutting machine using plain air.
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19 Jul 2021 11:41 #215313
by RNJFAB
Replied by RNJFAB on topic New Plasmacutter
I cut a lot of artwork/signs from 1.2mm or 1.6mm.
I have found that 40A (on my little plasma) with a 0.9mm nozzle is best. I run a pierce height of 3.4mm. Cut height of 1.2mm.
Normally moving around the 2800mm/min mark.
I have found that 40A (on my little plasma) with a 0.9mm nozzle is best. I run a pierce height of 3.4mm. Cut height of 1.2mm.
Normally moving around the 2800mm/min mark.
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22 Jul 2021 18:53 #215610
by Giuseppe
Replied by Giuseppe on topic New Plasmacutter
thanks for the comments. I will try tommorow. Yesterday i do this little test after optimizing the motor attachment in the x and y axis.
Now it use springs to press motor to the racks.
I think it is a bit better then before.
Second pic is after editing the axis.
Tomorrow i will try with the parameters you tell me.
Now it use springs to press motor to the racks.
I think it is a bit better then before.
Second pic is after editing the axis.
Tomorrow i will try with the parameters you tell me.
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