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Plunge hole
- sjorzzzie
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08 Apr 2016 09:06 #32929
von sjorzzzie
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Plunge hole wurde erstellt von sjorzzzie
After a few project i finaly get the hang of it and now im looking for improvement. Doest anyone know why i get plunge holes if every project?
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- MagIO2
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08 Apr 2016 22:47 #32953
von MagIO2
SC 420 mit DIY parallel +Proxxon mit Mod + HF500 + SprintLayout + LibreCAD/QCAD + FreeCAD +WinPC starter/USB->EstlCAM + EstlCAM LPTAdapter + EstlCAM Handrad + DIY Vakuumtisch
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MagIO2 antwortete auf Plunge hole
Could be an optical illusion because of the perspective, but my impression is that the endmill is not perpendicular to the table.
Other reason could be that you have play in the machine. If you wiggle right on the tip of the endmill, do you feel any movement in x or y direction?
Other reason could be that you have play in the machine. If you wiggle right on the tip of the endmill, do you feel any movement in x or y direction?
SC 420 mit DIY parallel +
Gruß, Andreas
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- sjorzzzie
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11 Apr 2016 13:29 #33042
von sjorzzzie
sjorzzzie antwortete auf Plunge hole
I have a little play in the endmill. but how come all the lines are good and it only plunge off it own line?
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11 Apr 2016 17:59 - 11 Apr 2016 18:02 #33043
von MagIO2
SC 420 mit DIY parallel +Proxxon mit Mod + HF500 + SprintLayout + LibreCAD/QCAD + FreeCAD +WinPC starter/USB->EstlCAM + EstlCAM LPTAdapter + EstlCAM Handrad + DIY Vakuumtisch
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MagIO2 antwortete auf Plunge hole
Did you watch the milling process? I could imagine that these holes are placed where the mill goes deeper into the material.
If you go down in a ramp it might help for the moment.
But in the end you should fix play, backslash and set everything straight.
If you go down in a ramp it might help for the moment.
But in the end you should fix play, backslash and set everything straight.
SC 420 mit DIY parallel +
Gruß, Andreas
Letzte Änderung: 11 Apr 2016 18:02 von MagIO2.
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- Joules
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11 Apr 2016 18:01 - 11 Apr 2016 18:07 #33044
von Joules
High Z S1000 router (out of action)
CamBam
Linuxcnc to be replaced by UCCNC + UC-100
OSX Rhino 3D
Joules antwortete auf Plunge hole
Your lines are cut with the cutter loaded in the direction of travel. A plunge has no sideways force, so backlash allows the effect you are seeing. If you did a spiral plunge with a smaller endmill you wouldn't see the nick, but your tool path would need 2 sweeps per layer.
The other option would be to not use plunge and lower the cutter into your tool path as you go (spiral cut in CamBam). That is what I do here if your software allows it.
The other option would be to not use plunge and lower the cutter into your tool path as you go (spiral cut in CamBam). That is what I do here if your software allows it.
High Z S1000 router (out of action)
CamBam
Linuxcnc to be replaced by UCCNC + UC-100
OSX Rhino 3D
Letzte Änderung: 11 Apr 2016 18:07 von Joules.
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11 Apr 2016 18:09 #33045
von sjorzzzie
sjorzzzie antwortete auf Plunge hole
Ok, so i need to fix the play in the Z axis. I will try that (i was hoping it was a setting).
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14 Apr 2016 21:39 #33180
von sjorzzzie
sjorzzzie antwortete auf Plunge hole
I found the problem... I had the settings set at a 3mm drill. But i used a 2mm drill.
How do you keep them separated? I have no tool to measure good (apparently).
How do you keep them separated? I have no tool to measure good (apparently).
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21 Apr 2016 08:49 #33352
von raf
stepcraft 420
raf antwortete auf Plunge hole
i use an old transport box where i put the mill bits in at the richt order to use them
0.4 in the first 0.5 in the next 1 mm in the therd and so on
i cant make a mistake using the wron mill bit
0.4 in the first 0.5 in the next 1 mm in the therd and so on
i cant make a mistake using the wron mill bit
stepcraft 420
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18 Dez 2016 20:47 #40865
von Hurcokid
Hurcokid antwortete auf Plunge hole
It looks like you may be cutting deeper than the flute length of the cutter.
If the body( shank) diameter of the cutter is larger than the cutting diameter, then when you plunge in to the full depth the shank will force the wood away, leaving what you see in your pics.
Once the profile milling is started then it is less noticable.
Example
Shank body dia= 3mm, cutting flute dia= 2mm, flute length = 12mm
You can only cut maximum depth of 12mm .
If the body( shank) diameter of the cutter is larger than the cutting diameter, then when you plunge in to the full depth the shank will force the wood away, leaving what you see in your pics.
Once the profile milling is started then it is less noticable.
Example
Shank body dia= 3mm, cutting flute dia= 2mm, flute length = 12mm
You can only cut maximum depth of 12mm .
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19 Dez 2016 11:40 #40904
von CNCMiller
SC 1/420 + Gantry extension, Kress 1050 FME-P, NeJe 20W Laser, WinPC-NC USB v4.00, Vectric Aspire 9, SolidWorks 2021
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CNCMiller antwortete auf Plunge hole
SjorZZZie
I made a box with Vectrix using the dovetail gadget and a piece of building foam.
now I can pick my bits whenever I need them without spitting true all the boxes.
maybe an idea for you.
I made a box with Vectrix using the dovetail gadget and a piece of building foam.
now I can pick my bits whenever I need them without spitting true all the boxes.
maybe an idea for you.
SC 1/420 + Gantry extension, Kress 1050 FME-P, NeJe 20W Laser, WinPC-NC USB v4.00, Vectric Aspire 9, SolidWorks 2021
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