On 9/23/2012 11:12 PM, Kent A. Reed wrote:
On 9/23/2012 10:25 PM, Jeshua Lacock wrote:
Greetings,
This web page describes the process I used going from OpenSCAD to
casted aluminum parts in a day:
http://3dtopo.com/lostPLA/
The casted parts are ultimately going to be controlled by
I have a routine that lets me mill a deep circle in several passes,
typically to cutout circles from plates.
Something strange is going on and the resulting shape is not exactly round.
It can be best described as a circle with humps.
The routine is below. It is basically a while loop, milling
On 25 September 2012 19:20, Igor Chudov ichu...@gmail.com wrote:
I have a routine that lets me mill a deep circle in several passes,
typically to cutout circles from plates.
You ought to be able to do this with one line of G-code?
G2 I[diameter/2] Z 10 P10 ?
Lumps at the 4 quadrants would
On Tue, 2012-09-25 at 13:20 -0500, Igor Chudov wrote:
I have a routine that lets me mill a deep circle in several passes,
typically to cutout circles from plates.
Something strange is going on and the resulting shape is not exactly round.
It can be best described as a circle with humps.
Igor,
I don't have an answer for you, other than to check on how you've defined you
trajectory planning accuracy outside of this routine.
Why are you using two half circles? You could just send the cutter back to the
starting xy location in a single G2 instruction.
N. Christopher Perry
On
Andy, thanks, what is P? Number of passes?
The problem is that the lumps do not look like caused by backlash.
There is one place where there is a lump, caused by all passes except the
first one. I am very puzzled.
i
On Tue, Sep 25, 2012 at 1:40 PM, andy pugh bodge...@gmail.com wrote:
On 25
On Sep 22, 2012 10:39 PM, Jon Elson el...@pico-systems.com wrote:
Viesturs La-cis wrote:
2012/9/22 Jason Burton lathebuil...@gmail.com:
Does Mesa or Pico (or another vendor) make a small, inexpensive amp for
this size 3 phase servo?
Mesa has small BLDC servo amps, but their rated
On Tue, Sep 25, 2012 at 2:13 PM, Stephen Dubovsky smdubov...@gmail.comwrote:
How big are the humps? How many are there?
There is one big hump on an about 4 inch circle. This hump is about 1mm
tall and 20mm wide.
It appears consistently on all passes, except the first one.
There is also a
On Tue, 2012-09-25 at 15:13 -0400, Stephen Dubovsky wrote:
How big are the humps? How many are there?
Are you in exact stop mode? If motion stops at the beginning/end of
each semicircle then you will get a little hump from springback during
the pause. Lead-in out are typ used when
Humps are
1) Northwest corner, biggest hump, 1mm tall by 20mm wide
2) Northeast corner, 0.5mm by 15mm wide
On Tue, Sep 25, 2012 at 3:08 PM, dave dengv...@charter.net wrote:
On Tue, 2012-09-25 at 15:13 -0400, Stephen Dubovsky wrote:
How big are the humps? How many are there?
Are you in
It's pretty unlikely, but with the first pass being free of humps I'd be
tempted to look at tool deflection. If your first pass is milling in from
fresh air it'll take a lighter cut, the heavier (and more consistent) cut on
each subsequent pass could then be deflecting slightly.
If this is the
On Sep 24, 2012, at 6:33 AM, Steve Stallings wrote:
It looks like he used a crucible lifter to do the
pour.
Guilty as charged!
Jeshua Lacock
Founder/Engineer
3DTOPO Incorporated
http://3DTOPO.com
Phone: 208.462.4171
On Sep 25, 2012, at 9:54 AM, Kent A. Reed wrote:
Congratulations, Jeshua. Your project made Hackaday today. I hope your
website is ready for the inevitable bump in traffic.
Thanks Kent!
Ready, willing and able!!!
Cheers,
Jeshua Lacock
Founder/Engineer
3DTOPO Incorporated
Sometimes milling in the opposite direction will help.Rough one direction then
put in a finish pass in the other.
Looking at your code I see you have a G2.Unless this is plastic or something
really gummy you should be using G3 for ID work.Or you are using left handed
mills.
Climb milling is the
Igor Chudov wrote:
Andy, thanks, what is P? Number of passes?
The problem is that the lumps do not look like caused by backlash.
There is one place where there is a lump, caused by all passes except the
first one. I am very puzzled.
Can you blow up the Axis plot window and see the lump?
Jason Burton wrote:
Hall effect sensors assuming straight contact closures here, not active
signals, right?
Well, the typical real Hall sensor in the motor needs +5 V, but is often
like
a contact closure to ground. So, the Hall sensor package has 5 wires,
+5, Ground and 3 signal wires.
Igor Chudov wrote:
Humps are
1) Northwest corner, biggest hump, 1mm tall by 20mm wide
2) Northeast corner, 0.5mm by 15mm wide
This has to be a program error. And, you should be able to EASILY see
this on
the Axis 3D display. Load the program, and then use the mouse buttons to
tilt the
On Tuesday 25 September 2012 23:23:36 Igor Chudov did opine:
I have a routine that lets me mill a deep circle in several passes,
typically to cutout circles from plates.
Something strange is going on and the resulting shape is not exactly
round. It can be best described as a circle with
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