well then ill put my .02 in
what aluminum alloy?
what quantity of material to remove whats the power of the spindle and
whats the fastest effective machining feed of the machine?
all of that considered for 5000, 6000 series any T condition I prefer
2 flute endmills as fast as the spindle can turn 1
On 16 February 2013 17:32, Viesturs Lācis wrote:
In university I found out that better than pure tap water would be
> mixing the water with soda (Na2CO3).
> Yes, I know about the need of coolant. As I already have been adviced
> before, mist coolant spray is recommended for aluminium, but this t
On Saturday 16 February 2013 21:11:50 Jon Elson did opine:
> Gene Heskett wrote:
> > and climb cutting with a single flute cannot be done in metal, the
> > table will be pulled forward, the next time the edge comes around its
> > too deep a cut & the mill snaps off.
>
> Well, on a tight machine,
Gene Heskett wrote:
> and climb cutting with a single flute cannot be done in metal, the table
> will be pulled forward, the next time the edge comes around its too deep a
> cut & the mill snaps off.
Well, on a tight machine, you can climb mill in aluminum, at least. it
leaves a much
better sur
Andy Pugh wrote:
> On 16 Feb 2013, at 14:58, ed wrote:
>
>
>> Do you have backlash the full length or is the screw worn in the middle?
>> Most can be reballed to reduce the slop but you must be careful that the
>> OD of the ball does not bear, you want contact on the quadrants. How
>> much
I like WD40 as a cutting solution for finish cuts on aluminum.
On Sat, Feb 16, 2013 at 1:21 PM, Marcus Bowman wrote:
> Viesturs,
>
> I use Accupro solid carbide router cutters designed for machining plastic
> and aluminium. They come from www.mscindustrial.co.uk (which is a large
> American comp
On 02/16/2013 12:10 PM, lloyd wilson wrote:
> I'm not sure if this should be posted here, on in development - it's a
> programming question, but it's not an official part of LCNC. I'll start
> here; if too arcane for this audience, feel free to suggest a re-direction.
>
> I'm working on a user-spa
I'm not sure if this should be posted here, on in development - it's a
programming question, but it's not an official part of LCNC. I'll start
here; if too arcane for this audience, feel free to suggest a re-direction.
I'm working on a user-space interface program for my Hurco mill control
pan
On 16 Feb 2013, at 20:01, Jon Elson wrote:
> Or, just mount the bearing solidly, place the motor in with no tension, and
> lock the bolts down. This should self-align the motor with the extra
> bearing.
I don't think any of this is necessary, but you could relieve the motor
bearings of all b
Viesturs,
I use Accupro solid carbide router cutters designed for machining plastic and
aluminium. They come from www.mscindustrial.co.uk (which is a large American
company and I think they will ship across Europe). Go to www.mscdirect.co.uk
and search for MIG-30035C (on special offer right now
Erik Christiansen wrote:
> On 15.02.13 08:08, Stuart Stevenson wrote:
>
>> I don't know the room you have but you could mount a pillow block opposite
>> the motor to support the pulley.
>>
>
> Thanks, Stuart, that's a very appealing idea, given the wussy motor bearing.
>
> If I bored the pi
On Saturday 16 February 2013 13:49:51 Andy Pugh did opine:
> On 16 Feb 2013, at 15:54, "Kent A. Reed" wrote:
> > Is the problem simply that European suppliers are not using the
> > Internet
>
> I tend to use Cromwell Tools when things feel urgent
> Www.cromwell.co.uk
> But typically I collect in
On Saturday 16 February 2013 13:23:37 Andy Pugh did opine:
> On 16 Feb 2013, at 14:35, Tomaz T. wrote:
> > Now what I want is only to connect this with RPM display in pyvcp.
>
> Net spindle-cmd pyvcp..
Thanks Andy, but that will probably need sent through a scale module to
calibrate, and l
On Saturday 16 February 2013 12:20:30 Viesturs Lācis did opine:
> Hello!
>
> Since I have totally zero experience with milling and what tools
> should be used, I would appreciate some hints.
> How good are single-flute endmills? Do they induce more vibration than
> 2-flute endmills? It seems to m
I have very little experience w/ 1 flutes, but was turned on to Onsrud
single flutes by a friend who does this sort of stuff for a living on big
commercial gantry machines w/ huge spindles. I've used on my gantry router
in wood and aluminum with high success. A single flute cuts the feed rate
& s
On 16 Feb 2013, at 15:54, "Kent A. Reed" wrote:
> Is the problem simply that European suppliers are not using the Internet
I tend to use Cromwell Tools when things feel urgent
Www.cromwell.co.uk
But typically I collect in person as they have a branch less than a mile from
my house.
-
Kent,
there are very potent suppliers in Europe, al least here in Germany,
naming only Hahn & Kolb or Hoffmann Werkzeuge (AFAIK, the lagerst seller
in Europe). Selling here is somewhat different from what America does,
because these firms have a lot of salesmen visiting the customers so
there
On 16 Feb 2013, at 14:35, Tomaz T. wrote:
> Now what I want is only to connect this with RPM display in pyvcp.
Net spindle-cmd pyvcp..
--
The Go Parallel Website, sponsored by Intel - in partnership with Geeknet,
On Sat, Feb 16, 2013 at 3:54 PM, Kent A. Reed wrote:
> On 2/16/2013 10:03 AM, Viesturs Lācis wrote:
>> I tried googling, but all I can find, is located on the other side of the
>> pond.
>> Thanks in advance!
> Gentle persons:
>
> My idle curiosity has gotten the better of me.
>
> I see statements
Viesturs,
Am 16.02.2013 16:32, schrieb Viesturs La-cis:
/snip... oversized for aluminum.
> Do You mean oversized in terms of diameter? I am going for 1 kW Kress
> spindle, it will handle that.
No, I meant hardness. Diameter depends purely on your needs. Only in the
case you mill anodized aluminum
On 2/16/2013 10:03 AM, Viesturs Lācis wrote:
> I tried googling, but all I can find, is located on the other side of the
> pond.
> Thanks in advance!
Gentle persons:
My idle curiosity has gotten the better of me.
I see statements like Viesturs' a lot.
Is the problem simply that European supplie
On 16 Feb 2013, at 14:58, ed wrote:
> Do you have backlash the full length or is the screw worn in the middle?
> Most can be reballed to reduce the slop but you must be careful that the
> OD of the ball does not bear, you want contact on the quadrants. How
> much backlash do you have now?
2013/2/16 Peter Blodow :
> Viestors,
> the endmill bit you showed is made of full carbide, a little oversized
> for aluminum.
Do You mean oversized in terms of diameter? I am going for 1 kW Kress
spindle, it will handle that.
> Alu tools generally have a steeper cutting angle and
> higher pitch t
Viestors,
the endmill bit you showed is made of full carbide, a little oversized
for aluminum. Alu tools generally have a steeper cutting angle and
higher pitch than tools for iron, that's all. Moreover, much higher
cutting speed is used in alu. Be sure to use plenty of water based
fluid, I hav
Hello!
Since I have totally zero experience with milling and what tools
should be used, I would appreciate some hints.
How good are single-flute endmills? Do they induce more vibration than
2-flute endmills? It seems to me that single flute endmills might be
easier to resharpen. Is that really so?
andy pugh wrote:
> Has anyone tried reducing the backlash in a ballnut by fitting oversized
> balls?
> If so, how did it turn out?
>
>
Do you have backlash the full length or is the screw worn in the middle?
Most can be reballed to reduce the slop but you must be careful that the
OD of the ba
I'm controlling spindle VFD with C6 board (with reference voltage 0-10V) from
cnc4pc:
http://www.cnc4pc.com/Store/osc/product_info.php?cPath=25&products_id=58
and here is complete setup for running this, and it runs perfectly for me:
setp stepgen.2.position-scale 1
setp stepgen.2.maxvel 18000
s
On 16 February 2013 13:42, Gene Heskett wrote:
>> http://www.linuxcnc.org/docs/2.4/html/hal_pyvcp_examples.html
> You are driving the spindle with a stepper?
It appears he is controlling the spindle by a stepper _and_ a VFD, if
the combination of configurations is anything to go by.
Tomaz: Exa
On Saturday 16 February 2013 08:38:12 Tomaz T. did opine:
> I took configuration from here:
> http://www.linuxcnc.org/docs/2.4/html/hal_pyvcp_examples.html
>
> I don't have encoder on spindle, and configuration for spindle in hal
> was taken here: http://cnc4pc.com/Files/EMC2.txt
You are drivin
On 16 February 2013 12:30, Tomaz T. wrote:
>
> I took configuration from here:
> http://www.linuxcnc.org/docs/2.4/html/hal_pyvcp_examples.html
That GS2 example will only work with the rest of the GS2 sample
config, as it assumes a GS2 VFD controlled by the serial port.
--
atp
If you can't fix i
Has anyone tried reducing the backlash in a ballnut by fitting oversized balls?
If so, how did it turn out?
--
atp
If you can't fix it, you don't own it.
http://www.ifixit.com/Manifesto
--
The Go Parallel Website, sponso
On Saturday 16 February 2013 07:58:23 Tomaz T. did opine:
> I'm trying to make working my spindle rpm display (pyvcp), but don't
> know which signal to connect or take from my .hal file.
>
> Here is what is in my hal file for spindle:
>
>
> net spindle-enable <= motion.spindle-on => stepgen.2.e
I took configuration from here:
http://www.linuxcnc.org/docs/2.4/html/hal_pyvcp_examples.html
I don't have encoder on spindle, and configuration for spindle in hal was taken
here:
http://cnc4pc.com/Files/EMC2.txt
On 16 February 2013 10:22, Tomaz T. wrote:
> net cypher_speed mult2.2.in0 <= spindle-vfd.frequency-out
> net speed_out pyvcp.spindle_rpm <= mult2.2.out
Do you have a spindle encoder?
What is spindle-vfd.frequency-out ? Are you using the vfs11_vfd HAL component?
--
atp
If you can't fix it, you
On 16.02.13 11:32, Marshland Engineering wrote:
> Hi Chaps. Could you please trim your posts. They are getting quite long at
> this point.
Fullquoting does give all of the list recipients a lot of repeated words
to wade through, and can lead to planet-wide cursing. But hobby lists
are not renown
On 15.02.13 09:02, John Kasunich wrote:
...
> Make the pulleys as big as you have room for - that helps you
> three ways:
>
> 1) the belt tension needed to transmit a given torque goes down
>
> 2) there are more teeth engaged between belt and pulley. That both
> increases the ability of the belt
I'm trying to make working my spindle rpm display (pyvcp), but don't know which
signal to connect or take from my .hal file.
Here is what is in my hal file for spindle:
net spindle-enable <= motion.spindle-on => stepgen.2.enable
net spindle-cmd motion.spindle-speed-out => scale.0.in
net spindl
On 15.02.13 08:08, Stuart Stevenson wrote:
> I don't know the room you have but you could mount a pillow block opposite
> the motor to support the pulley.
Thanks, Stuart, that's a very appealing idea, given the wussy motor bearing.
If I bored the pillow block slightly oversize, then the extra bea
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