On 11/23/23 22:16, gene heskett wrote:
On 11/23/23 17:22, marcus.bow...@visible.eclipse.co.uk wrote:
On 2023-11-23 21:18, Chris Albertson wrote:
Yes, a magnet and a steel disk is the simplest possible design. If
you don’t need indexing. Nothing would move. The disk could slide
over the magn
On 11/23/23 17:22, marcus.bow...@visible.eclipse.co.uk wrote:
On 2023-11-23 21:18, Chris Albertson wrote:
Yes, a magnet and a steel disk is the simplest possible design. If
you don’t need indexing. Nothing would move. The disk could slide
over the magnet and then when energized the sliding w
On 11/23/23 16:19, Chris Albertson wrote:
Yes, a magnet and a steel disk is the simplest possible design. If you don’t
need indexing. Nothing would move. The disk could slide over the magnet and
then when energized the sliding would stop.
The slop issue is normally solved by always rotating
On 11/23/23 15:40, Ryan McIntosh wrote:
If you are going to clamp a metal disc with anything, use an
electromagnet... But if it's a worm drive with that much slop, I guarantee
there's some improvement to be found by controlling the thrust movement of
the pinion gear. Inserting a shim (could be
On 11/23/23 14:26, Chris Albertson wrote:
On Nov 22, 2023, at 1:06 PM, gene heskett wrote:
I'd have to agree Andy. I need to design a disk brake for my A axis as there's
half a degree of slop in the worm drive which if it gets to the motor will be
held, but the slop in the worm makes fo
> From: Peter Wallace [mailto:p...@mesanet.com]
> On Thu, 23 Nov 2023, John Dammeyer wrote:
>
> > Quick question here. The HAL file has two time intervals I believe in
> nanoseconds?
> > BASE_PERIOD = 24000
> > SERVO_PERIOD = 100
> >
> > So BASE_PERIOD is about 41.67kHz and SERVO_PERIOD is 1
On Thu, 23 Nov 2023, John Dammeyer wrote:
Date: Thu, 23 Nov 2023 17:07:57 -0800
From: John Dammeyer
Reply-To: "Enhanced Machine Controller (EMC)"
To: "'Enhanced Machine Controller (EMC)'"
Subject: [Emc-users] Trajectory planning
Quick question here. The HAL file has two time intervals
Quick question here. The HAL file has two time intervals I believe in
nanoseconds?
BASE_PERIOD = 24000
SERVO_PERIOD = 100
So BASE_PERIOD is about 41.67kHz and SERVO_PERIOD is 1kHz?
I'm guessing the encoder edges are counted between BASE_PERIOD Ticks to
determine spindle velocity? Is th
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On Thu, Nov 23, 2023, 2:43 PM
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On Thu, 23 Nov 2023 at 20:42, Ryan McIntosh wrote:
>
> If you are going to clamp a metal disc with anything, use an
> electromagnet.
Maybe re-purpose parts of a car air-conditioning clutch.
(I am sure that these have loads of applications, as they can clamp
and release while rotating, though tha
On 2023-11-23 21:18, Chris Albertson wrote:
Yes, a magnet and a steel disk is the simplest possible design. If
you don’t need indexing. Nothing would move. The disk could slide
over the magnet and then when energized the sliding would stop.
The slop issue is normally solved by always rotatin
Yes, a magnet and a steel disk is the simplest possible design. If you don’t
need indexing. Nothing would move. The disk could slide over the magnet and
then when energized the sliding would stop.
The slop issue is normally solved by always rotating in one direction so maybe
it could be con
On 11/23/23 14:26, Chris Albertson wrote:
On Nov 22, 2023, at 1:06 PM, gene heskett wrote:
I'd have to agree Andy. I need to design a disk brake for my A axis as there's
half a degree of slop in the worm drive which if it gets to the motor will be
held, but the slop in the worm makes fo
If you are going to clamp a metal disc with anything, use an
electromagnet... But if it's a worm drive with that much slop, I guarantee
there's some improvement to be found by controlling the thrust movement of
the pinion gear. Inserting a shim (could be punched out of an old set of
feeler guages
> On Nov 22, 2023, at 1:06 PM, gene heskett wrote:
>>
> I'd have to agree Andy. I need to design a disk brake for my A axis as
> there's half a degree of slop in the worm drive which if it gets to the motor
> will be held, but the slop in the worm makes for sloppy looking holes, but
> the a
I remember a customer bumping a geneva gear tool changer
using the side of the platen that held the electrode
bumpint would index the tool
he used gcode on a Fanuc/Elox sink edm.
yeah i suppose a machine tool _is_ an expensive motor
but shows people are clever
tomp
On 11/23/23 04:06, gene h
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