Re: [Emc-users] anti-freeze recommendation for water cooled spindle motors

2020-11-09 Thread Gene Heskett
On Monday 09 November 2020 22:58:11 dave engvall wrote: > IIRC RV grade antifreeze is propylene glycol and often flavored with a > bit of methyl salicylate. Easy to tell if you have it all flushed out. > You will be able to taste the oil of wintergreen long after the pink > dye is gone. > > Dave

Re: [Emc-users] anti-freeze recommendation for water cooled spindle motors

2020-11-09 Thread dave engvall
IIRC RV grade antifreeze is propylene glycol and often flavored with a bit of methyl salicylate. Easy to tell if you have it all flushed out. You will be able to taste the oil of wintergreen long after the pink dye is gone. Dave On 11/7/20 6:46 PM, Gene Heskett wrote: On Saturday 07

Re: [Emc-users] limit switch configuration on lathe in linxcnc (2.7)

2020-11-09 Thread R C
Hi Andy, I am trying to use the macros you wrote.  It seems to work in axis, and tried the turning macro. I just picked some numbers and hit the "play" button and I saw these messages: emc/task/emctask.cc 389: interp_error: EOF in file:/usr/share/axis/images/axis-lathe.ngc seeking

Re: [Emc-users] driver for a DC motor for a BS-1.

2020-11-09 Thread Gene Heskett
On Monday 09 November 2020 18:16:05 Chris Albertson wrote: > No example hookups? The PDF you linked shows every wire and provides > source code for software to control the motor.They use a pictorial > diagram rather than a schematic. > > Then there are two links on the last page of the PDF.

Re: [Emc-users] Peristaltic Pump

2020-11-09 Thread Gene Heskett
On Monday 09 November 2020 16:31:24 ken.stra...@gmail.com wrote: > Some time ago there was a little discussion about using a peristaltic > pump to supply coolant to a mister. Was this successful? Which pump > was used? Is silicone tubing resistant to coolant? > yes, but don't recall the part

Re: [Emc-users] driver for a DC motor for a BS-1.

2020-11-09 Thread Chris Albertson
No example hookups? The PDF you linked shows every wire and provides source code for software to control the motor.They use a pictorial diagram rather than a schematic. Then there are two links on the last page of the PDF. The first link is to a very easy to follow tutorial that explains a

Re: [Emc-users] Peristaltic Pump

2020-11-09 Thread David Berndt
I'm not sure I participated in the previous discussion but it is something I've been doing for about the last 6 months now. I replaced my old setup which was air combined with mist via pressurizing the mist tank and carefully regulating each stream via pnuematic regulator and a quite small

Re: [Emc-users] driver for a DC motor for a BS-1.

2020-11-09 Thread Gene Heskett
On Wednesday 28 October 2020 16:02:51 Gene Heskett wrote: > On Wednesday 28 October 2020 14:30:39 Chris Albertson wrote: > > I bit of information from Polulu's web site. They say.. > > > > "*While VNH3SP30’s over-voltage shutoff doesn’t activate until 36 V, > > in our experience, shoot-through

[Emc-users] Peristaltic Pump

2020-11-09 Thread ken.strauss
Some time ago there was a little discussion about using a peristaltic pump to supply coolant to a mister. Was this successful? Which pump was used? Is silicone tubing resistant to coolant? ___ Emc-users mailing list Emc-users@lists.sourceforge.net

Re: [Emc-users] anti-freeze recommendation for water cooled spindle motors

2020-11-09 Thread Scott Harwell via Emc-users
Gene,    Try copper sulfate as a fungicide/ algaecide. It will not harm fish or animals. It won't help with freezing but should stop growth in the system. Scott H On Sunday, November 8, 2020, 1:51:24 PM CST, Gene Heskett wrote: On Sunday 08 November 2020 11:32:29 Chris Albertson

Re: [Emc-users] anti-freeze recommendation for water cooled spindle motors

2020-11-09 Thread Chris Albertson
Cheap "blue label" $3 a bottle Vodka works too. People have been using that to prevent both freezing and algae growth in water systems for years. It is commonly used when people have to store boats or RV for Winter and they can never drain all the water. Clorox bleach is better and more

Re: [Emc-users] Auto depth of tapping question, wild hair idea #excedrin_headache

2020-11-09 Thread Gene Heskett
On Monday 09 November 2020 12:51:26 John Dammeyer wrote: > When I get around to finishing the spindle sensing I have one of these > for tapping. I don't expect broken taps. Probably the biggest issue > may be the tap spinning in the collet. That's a major pain, John. I put all my 3/8" and

Re: [Emc-users] anti-freeze recommendation for water cooled spindle motors

2020-11-09 Thread Gene Heskett
On Monday 09 November 2020 12:09:20 jrmitchellj wrote: > Sounds like you have a bad algae growing in the system. I have seen > some algae go for the plastic/poly, and eventually break it down. > It may take a medium to strong caustic (Draino) solution to break it > down. But that might not be

Re: [Emc-users] Auto depth of tapping question, wild hair idea #excedrin_headache

2020-11-09 Thread John Dammeyer
When I get around to finishing the spindle sensing I have one of these for tapping. I don't expect broken taps. Probably the biggest issue may be the tap spinning in the collet.

Re: [Emc-users] Auto depth of tapping question, wild hair idea #excedrin_headache

2020-11-09 Thread Gene Heskett
On Monday 09 November 2020 11:02:41 jrmitchellj wrote: > Good morning Gene. > > I would be interested in seeing how you are metering/monitoring the > spindle overshoot past the turnaround command. > Only if you are interested in sharing. > > --J. Ray Mitchell Jr. > jrmitche...@gmail.com > Sure,

Re: [Emc-users] anti-freeze recommendation for water cooled spindle motors

2020-11-09 Thread jrmitchellj
Sounds like you have a bad algae growing in the system. I have seen some algae go for the plastic/poly, and eventually break it down. It may take a medium to strong caustic (Draino) solution to break it down. But that might not be very good for the internals of the motor. Without knowing what

Re: [Emc-users] anti-freeze recommendation for water cooled spindle motors

2020-11-09 Thread Gene Heskett
On Sunday 08 November 2020 14:48:53 Gene Heskett wrote: [...] > I just got back from wallies, found zip to clean this crap out of the > motor, so I brought back two pleated paper fuel filters from the > outboard gizmo's shelf but made for a huge 7/16" fuel tine, so I've > got a jury rig of shrink

Re: [Emc-users] Auto depth of tapping question, wild hair idea #excedrin_headache

2020-11-09 Thread jrmitchellj
Good morning Gene. I would be interested in seeing how you are metering/monitoring the spindle overshoot past the turnaround command. Only if you are interested in sharing. --J. Ray Mitchell Jr. jrmitche...@gmail.com "Good enough is the enemy of excellence"author unknown On Mon, Nov 9, 2020

Re: [Emc-users] Auto depth of tapping question, wild hair idea #excedrin_headache

2020-11-09 Thread Gene Heskett
On Monday 09 November 2020 06:12:02 andy pugh wrote: > On Mon, 9 Nov 2020 at 11:09, Gene Heskett wrote: > > Does this sound like a worthwhile bit of research? > > Not to me. I just accept finishing the holes out with a bottoming tap > by hand. I'd like to automate that, but changing the tap in

Re: [Emc-users] Auto depth of tapping question, wild hair idea #excedrin_headache

2020-11-09 Thread andy pugh
On Mon, 9 Nov 2020 at 11:09, Gene Heskett wrote: > Does this sound like a worthwhile bit of research? Not to me. I just accept finishing the holes out with a bottoming tap by hand. -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of

[Emc-users] Auto depth of tapping question, wild hair idea #excedrin_headache

2020-11-09 Thread Gene Heskett
Greetings all; In my rigid tapping, I often peck to final depth due to not having a big enough horse turning the spindle, only about 2. Due to Z slop this often leads to a looser thread fit but is generally usable. But when tappiing blind holes, there is always the chance of the tap

Re: [Emc-users] limit switch configuration on lathe in linxcnc (2.7)

2020-11-09 Thread andy pugh
On Mon, 9 Nov 2020 at 04:37, R C wrote: > when I home the X axis (with either option) , from a "random position" > (where the cross slide was left before I turned everything off for > example) It goes towards home, hits the switch, reverses and backs > off (slowly) a little and then