2013/8/13 Terry Christophersen tcninj...@yahoo.com
Hi all,
I am reretrofitting a bridgeport that I use for second operations.It has
250 line encoders now.
I would like to upgrade these encoders to say 500 or 1000 line(I am
getting rid of the 2:1
ratio pulleys and going for 1:1 so I have
I know most of you guys on the mailing list don't visit the forum so
here is a link to a G code generator for drilling and tapping holes on a
mill. I wrote this mainly because we don't have a tapping cycle and if I
forgot the pre-position move then you get a really neat show as your tap
Very nice John..
Dave Cole
On 8/13/2013 9:32 AM, John Thornton wrote:
I know most of you guys on the mailing list don't visit the forum so
here is a link to a G code generator for drilling and tapping holes on a
mill. I wrote this mainly because we don't have a tapping cycle and if I
forgot
This is the metric dictionary if anyone wants to convert the pitch and
drill sizes to mm
# Metric Drills change inch drills to metric and your set
# tap size, pitch, 75% drill, 75% drill diameter, 50% drill for
steel, 50% dia
self.NF_TapM = {1:'#6-40,0.6350,M2.9,2.9,M3,3.0',
Oh I forgot to mention I converted the first line of each type of tap as
an example.
JT
On 8/13/2013 9:03 AM, Dave wrote:
Very nice John..
Dave Cole
On 8/13/2013 9:32 AM, John Thornton wrote:
I know most of you guys on the mailing list don't visit the forum so
here is a link to a G code
Thanks, just don't use the metric option as the data for metric is still
in inch... I have no motivation to convert the few pitch entries in the
metric dictionary so if anyone does let me know.
JT
On 8/13/2013 9:03 AM, Dave wrote:
Very nice John..
Dave Cole
On 8/13/2013 9:32 AM, John
erm...maths in the code :)
Dave Caroline
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On Tuesday 13 August 2013 10:15:50 John Thornton did opine:
I know most of you guys on the mailing list don't visit the forum so
here is a link to a G code generator for drilling and tapping holes on a
mill. I wrote this mainly because we don't have a tapping cycle and if I
forgot the
2013/8/13 John Thornton bjt...@gmail.com
This is the metric dictionary if anyone wants to convert the pitch and
drill sizes to mm
# Metric Drills change inch drills to metric and your set
# tap size, pitch, 75% drill, 75% drill diameter, 50% drill for
steel, 50% dia
John, could
That would be complicated to sort out what common metric drill sizes are
for each tap and much easier to just update the dictionary with a few
entries. I'm just not motivated to do either as I don't use metric drills.
JT
On 8/13/2013 9:42 AM, Dave Caroline wrote:
erm...maths in the code :)
When tapping in steel it is only necessary to have %50 thread depth and
%75 thread depth in soft materials.
JT
On 8/13/2013 10:09 AM, Viesturs Lācis wrote:
2013/8/13 John Thornton bjt...@gmail.com
This is the metric dictionary if anyone wants to convert the pitch and
drill sizes to mm
#
I've got a pretty good offer on a DM-4400. Too good offer to let it go...
It has closed loop steppers (surprised me) with gearboxes. It seems to be
in good condition but I am ready to give it new ballscrews and new motors
with direct feed or a 2:1 belt reduction and stronger steppers (more
speed).
http://www.publicsurplus.com/sms/docviewer/aucdoc/CNC%20Machine,%20Dynamyte%204400%206.jpg?auc=496311docid=2766451
2013/8/13 Sven Wesley svenne.d...@gmail.com
I've got a pretty good offer on a DM-4400. Too good offer to let it go...
It has closed loop steppers (surprised me) with gearboxes.
On 08/13/2013 03:22 AM, Sven Wesley wrote:
... snip
These are my favorites since many years. You can get them at Digikey for
cheap.
http://cncdrive.com/AMT103.html
... snip
At one time these encoders were known to have a latency issue. I'm not
sure what the current status is.
--
Kirk
2013/8/13 John Thornton bjt...@gmail.com
When tapping in steel it is only necessary to have %50 thread depth and
%75 thread depth in soft materials.
Do you mean it to have tapped 50% / 75% of hole's depth or do you mean
increasing the initial drill size so that height of actual thread
On 08/13/2013 09:00 AM, Viesturs Lācis wrote:
2013/8/13 John Thornton bjt...@gmail.com
When tapping in steel it is only necessary to have %50 thread depth and
%75 thread depth in soft materials.
Do you mean it to have tapped 50% / 75% of hole's depth or do you mean
increasing the initial
On 8/13/2013 12:00 PM, Viesturs Lācis wrote:
increasing the initial drill size so that height of actual thread profile
is 50% / 75% of the standard (theoretical) thread profile height?
That is it..
Dave
--
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On Tuesday 13 August 2013 12:41:21 Sven Wesley did opine:
I've got a pretty good offer on a DM-4400. Too good offer to let it
go... It has closed loop steppers (surprised me) with gearboxes. It
seems to be in good condition but I am ready to give it new ballscrews
and new motors with direct
dave wrote:
On Mon, 2013-08-12 at 19:14 -0700, Terry Christophersen wrote:
Hi all,
I am reretrofitting a bridgeport that I use for second operations.It has
250 line encoders now.
I would like to upgrade these encoders to say 500 or 1000 line(I am getting
rid of the 2:1
ratio pulleys
Your having way too much fun Gene.
On 8/13/2013 9:50 AM, Gene Heskett wrote:
On Tuesday 13 August 2013 10:15:50 John Thornton did opine:
I know most of you guys on the mailing list don't visit the forum so
here is a link to a G code generator for drilling and tapping holes on a
mill. I
On Tuesday 13 August 2013 13:52:32 John Thornton did opine:
Your having way too much fun Gene.
Love it John, but tell that to the aching calf muscle from a charley horse
I woke up with Sunday morning that is still making me do a pretty good
imitation of a limp.
Getting to be my age is NOT
2013/8/13 Gene Heskett ghesk...@wdtv.com
On Tuesday 13 August 2013 12:41:21 Sven Wesley did opine:
I've got a pretty good offer on a DM-4400. Too good offer to let it
go... It has closed loop steppers (surprised me) with gearboxes. It
seems to be in good condition but I am ready to give
I'm having a bit of difficulty getting my first attempt at changing machine
offsets for fixtures.
I have 9 locations that I want to machine the same things to.
1) Synopsys - start LinuxCNC. Home machine. touchoff G54 x/y/z.
2) Load in program.
3) Load first tool (collet chuck, manually done)
John,
Looks ok, but it may be something simple.
You could always do a manual test (and apologies if you have already done this)
by manually setting the G54-59.3 origins by moving and touching off each in
turn. You should then be able to go to each origin in turn using G55 G0 X0 Y0
Z0 and so
Marcus;
Thank you for the tips.
You could always do a manual test (and apologies if you have already done
this) by manually setting the G54-59.3 origins by moving and touching off
each in turn. You should then be able to go to each origin in turn using
G55 G0 X0 Y0 Z0 and so on.
What happens
I'm pretty sure it is a Teccor triac. Teccor is owned by Littlefuse now.
-- Ralph
Todd Zuercher zuerc...@embarqmail.com wrote:
I need to find a replacement for this transistor (Since I don't know what else
to call it).
I attached a bad photo of it. The numbers on it read
On Wednesday 14 August 2013 01:05:32 Todd Zuercher did opine:
I need to find a replacement for this transistor (Since I don't know
what else to call it). I attached a bad photo of it. The numbers on it
read Q797 at the top and the bottom right corner has L7 and MEX. It is
the main chip on a
I want to see if my motors will run. How do I identify the motor wires VS the
tachometer wires so I can hook up to a DC power supply just to see if they'll
run?
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On 08/14/2013 12:26 AM, Gregg Eshelman wrote:
I want to see if my motors will run. How do I identify the motor wires VS the
tachometer wires so I can hook up to a DC power supply just to see if they'll
run?
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