Re: ELS on a SOuth Bend 9
Thanks John !
On 5/7/25 11:48 AM, BuffaloJohn via
groups.io wrote:
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You don't need a pull down for that hall effect sensor, you
need a pull up. The output is the collector of an NPN
transistor, so open collector.
There is a datasheet:
Brown is supply to sensor.?
Black is Open Collector output (if you don't put a pullup,
it will only float up)
Blue is sensor ground
page 3 shows the schematic you would use, including a level
shifter made of resistors to keep the output voltage in the
range the processor needs. You can adjust the resistors to
make the range be 0..3.1v if that is what you need.
we were gettin a ton of bounce with the sensor I
originally picked . but I totally missed the part where i
needed to use a pull down resistor . so maybe it? get's
better with the resistor .
?
thanks
animal
On 5/6/25 11:09 PM, John Dammeyer wrote:
Here's a photo of my South Bend Heavy 10L with a
magnet in the bearing clamp hole and a hall sensor to
pick up the magnet.? Been working
without issues for probably since about 2008.
?
?
This is on a different lathe.? Again
easy to do.
?
> -----Original Message-----
> From: [email protected]
[mailto:[email protected]]
On Behalf
> Of mike allen
> Sent: May 6, 2025 6:39 PM
> To: [email protected]
> Subject: [digitalhobbyist]
ELS on a SOuth Bend 9
>
> hey folk's has anyone?
done this ELS on a South Bend 9 lathe ?
>
> I'm lookin to see some pics of encoder mounting
if anyone has any
>
> thanks
>
> animal
>
>
>
>
?
--
Buffalo John
|
Re: ELS on a SOuth Bend 9
You don't need a pull down for that hall effect sensor, you need a pull up. The output is the collector of an NPN transistor, so open collector.
There is a datasheet:
Brown is supply to sensor.? Black is Open Collector output (if you don't put a pullup, it will only float up) Blue is sensor ground
page 3 shows the schematic you would use, including a level shifter made of resistors to keep the output voltage in the range the processor needs. You can adjust the resistors to make the range be 0..3.1v if that is what you need.
we were gettin a ton of bounce with the sensor I originally
picked . but I totally missed the part where i needed to use a
pull down resistor . so maybe it? get's better with the resistor .
?
thanks
animal
On 5/6/25 11:09 PM, John Dammeyer
wrote:
Here's a photo of my South Bend Heavy
10L with a magnet in the bearing clamp hole and a hall sensor
to pick up the magnet.? Been
working without issues for probably since about 2008.
?
?
This is on a different lathe.? Again easy to do.
?
> -----Original
Message-----
> From:
[email protected] [mailto:[email protected]]
On Behalf
> Of
mike allen
> Sent:
May 6, 2025 6:39 PM
> To:
[email protected]
> Subject:
[digitalhobbyist] ELS on a SOuth Bend 9
>
> hey folk's has anyone?
done this ELS on a South Bend 9 lathe ?
>
> I'm lookin to see some pics of
encoder mounting if anyone has any
>
> thanks
>
> animal
>
>
>
>
?
--
Buffalo John
|
Nice looking job, well done.
--
John
|
Hi John
Yes received the photos
Thanks
?
--
John
|
Interesting.? I sent two photos and neither of them showed up on the forum.
|
Alex, would you share your code?
I used an Omron rotary encoder to measure spindle location and speed on my lathe. The positioning is useful and enabled me to do an electronic leadscrew (a good project down the line).? It's the thing attached with the orange belt below.? They spin very freely,
so you don't need much belt tension and this is one of the poly belts that you cut to length and melt together.
My encoder is 360 pulses per revolution and cost me under $20 on eBay in 2020.? It looks like they might be $30ish now.
Alex
Thanks Julian . I need something that can could revolutions on the spindle on my lathe . I looked for that project in the files this weekend but all I found was like 3 pics . Is it still there & I'm just messed up ?
thanks
animal
On 5/6/25 9:54 AM, Julian wrote:
Hi Mike,
Not sure what type of IR sensor your looking for, but I used one of these on my auto oiler system a few years back ...
?
?
It was an H92B4 photo interrupter.? It worked very well both for counting oil drips and with a small metal strip passing between the legs to measure rpm.
--
Clausing 8520, Craftsman 12x36 Lathe, 4x12 mini lathe, 14" Delta drill press, 40 watt laser, Consew brushless DC motors and a non working 3D printer
|
Re: ELS on a SOuth Bend 9
There’s no specification on those devices as to speed.? I would not use them as spindle sensors. ?
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From: [email protected] [mailto:[email protected]] On Behalf Of mike allen
Sent: May 6, 2025 11:38 PM
To: [email protected]
Subject: Re: [digitalhobbyist] ELS on a SOuth Bend 9? we were gettin a ton of bounce with the sensor I originally picked . but I totally missed the part where i needed to use a pull down resistor . so maybe it? get's better with the resistor . ? thanks animal
|
Re: ELS on a SOuth Bend 9
we were gettin a ton of bounce with the sensor I originally
picked . but I totally missed the part where i needed to use a
pull down resistor . so maybe it? get's better with the resistor .
?
thanks
animal
On 5/6/25 11:09 PM, John Dammeyer
wrote:
toggle quoted message
Show quoted text
Here's a photo of my South Bend Heavy
10L with a magnet in the bearing clamp hole and a hall sensor
to pick up the magnet.? Been
working without issues for probably since about 2008.
?
?
This is on a different lathe.? Again easy to do.
?
> -----Original
Message-----
> From:
[email protected] [mailto:[email protected]]
On Behalf
> Of
mike allen
> Sent:
May 6, 2025 6:39 PM
> To:
[email protected]
> Subject:
[digitalhobbyist] ELS on a SOuth Bend 9
>
> hey folk's has anyone?
done this ELS on a South Bend 9 lathe ?
>
> I'm lookin to see some pics of
encoder mounting if anyone has any
>
> thanks
>
> animal
>
>
>
>
?
|
Re: ELS on a SOuth Bend 9
Here's a photo of my South Bend Heavy 10L with a magnet in the bearing clamp hole and a hall sensor to pick up the magnet.? Been working without issues for probably since about 2008. ? 
? This is on a different lathe.? Again easy to do. 
?
toggle quoted message
Show quoted text
> -----Original Message----- > From: [email protected] [mailto:[email protected]] On Behalf > Of mike allen > Sent: May 6, 2025 6:39 PM > To: [email protected] > Subject: [digitalhobbyist] ELS on a SOuth Bend 9 > > hey folk's has anyone? done this ELS on a South Bend 9 lathe ? > > I'm lookin to see some pics of encoder mounting if anyone has any > > thanks > > animal > > > > ?
|
hey folk's has anyone? done this ELS on a South Bend 9 lathe ?
I'm lookin to see some pics of encoder mounting if anyone has any
thanks
animal
|
??? thats why I couldn't find it , now I remember it was never
saved in the file section , just in Messages .
thanks Julian
animal
On 5/6/25 6:11 PM, Julian wrote:
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I too struggle to find historic stuff on groups IO.
?
Alex, yes, I did the same.? I had a spare phase on my spindle
encoder and used that.? I made a lash-up system with a photo
interrupter just to prove it worked and for the benefit of
anyone building the system who didn't have an available
encoder phase.? I think the photo
interrupters were only a couple of quid each and really easy
to set up.
|
I too struggle to find historic stuff on groups IO.
?
Alex, yes, I did the same.? I had a spare phase on my spindle encoder and used that.? I made a lash-up system with a photo interrupter just to prove it worked and for the benefit of anyone building the system who didn't have an available encoder phase.? I think the photo interrupters were only a couple of quid each and really easy to set up.
|
A encoder sounds like a much more stable unit than a pair of
led's readin? line? or 4 on a spinning shaft . Probably get much
less bounce that way .
thanks
On 5/6/25 5:00 PM, alexphredorg wrote:
toggle quoted message
Show quoted text
I used an Omron rotary encoder to measure spindle location and
speed on my lathe. The positioning is useful and enabled me to
do an electronic leadscrew (a good project down the line).? It's
the thing attached with the orange belt below.? They spin very
freely, so you don't need much belt tension and this is one of
the poly belts that you cut to length and melt together.
My encoder is 360 pulses per revolution and cost me under $20 on
eBay in 2020.? It looks like they might be $30ish now.
Alex
Thanks Julian . I need something that can could revolutions
on the spindle on my lathe . I looked for that project in the
files this weekend but all I found was like 3 pics . Is it
still there & I'm just messed up ?
thanks
animal
On 5/6/25 9:54 AM, Julian wrote:
Hi Mike,
Not sure what type of IR sensor your looking for, but I
used one of these on my auto oiler system a few years back
...
?
?
It was an H92B4 photo interrupter.? It worked very well
both for counting oil drips and with a small metal strip
passing between the legs to measure rpm.
|
I used an Omron rotary encoder to measure spindle location and speed on my lathe. The positioning is useful and enabled me to do an electronic leadscrew (a good project down the line).? It's the thing attached with the orange belt below.? They spin very freely,
so you don't need much belt tension and this is one of the poly belts that you cut to length and melt together.
My encoder is 360 pulses per revolution and cost me under $20 on eBay in 2020.? It looks like they might be $30ish now.
Alex
toggle quoted message
Show quoted text
Thanks Julian . I need something that can could revolutions on the spindle on my lathe . I looked for that project in the files this weekend but all I found was like 3 pics . Is it still there & I'm just messed up ?
thanks
animal
On 5/6/25 9:54 AM, Julian wrote:
Hi Mike,
Not sure what type of IR sensor your looking for, but I used one of these on my auto oiler system a few years back ...
?
?
It was an H92B4 photo interrupter.? It worked very well both for counting oil drips and with a small metal strip passing between the legs to measure rpm.
|
Thanks Julian . I need something that can could revolutions on
the spindle on my lathe . I looked for that project in the files
this weekend but all I found was like 3 pics . Is it still there
& I'm just messed up ?
thanks
animal
On 5/6/25 9:54 AM, Julian wrote:
toggle quoted message
Show quoted text
Hi Mike,
Not sure what type of IR sensor your looking for, but I used
one of these on my auto oiler system a few years back ...
?
?
It was an H92B4 photo interrupter.? It worked very well both
for counting oil drips and with a small metal strip passing
between the legs to measure rpm.
|
Haven't used them
yet but I settled on QRE1113 (through hole) for track sensors
for a N Scale layout.
I only need to detect at about 3mm max. About 3.6 x 2.9 x 1.7 mm
...
Peter
On 6/05/2025 12:46 pm, mike allen
wrote:
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Show quoted text
evening
folks , Ion a quest for a small package IR sensor for a project
I'm working on .
??? Anyone here have a suggestion for one that they have used
& are
happy with it ? I'm working with Arduino sized voltages .
thanks
animal
|
Hi Mike,
Not sure what type of IR sensor your looking for, but I used one of these on my auto oiler system a few years back ...
?
?
It was an H92B4 photo interrupter.? It worked very well both for counting oil drips and with a small metal strip passing between the legs to measure rpm.
|
evening folks , Ion a quest for a small package IR sensor for a project
I'm working on .
??? Anyone here have a suggestion for one that they have used & are
happy with it ? I'm working with Arduino sized voltages .
thanks
animal
|
Re: anyone have one of these ?
oops, got an error in there - SDS1102 is the model you were looking at, but the answer remains the same, multiple brands, same comments apply...
Here is a reddit that talks about them:
Last comment in the thread was interesting...
On Tue, Apr 29, 2025 at 8:26?AM BuffaloJohn via <johndurbetaki= [email protected]> wrote: The "DOS1102" part is the "standard" model name and there are multiple makers of that model. Standard chinese practice is there is a "design" and is branded by a bunch of trading companies. All are probably identical, though there are often lower priced versions that don't meet some spec. I found one on amazon for $170.
While non-recognisable brands might be a diamond in the rough, there is no way to tell. If you buy a name branded model, then you have a chance they have a reputation to look at.
If you are looking at waveforms and that is about it, you probably will find such a scope useful and satisfactory.
When I was in the market for a scope, I went with 4 channels and I am glad I did. I don't always need more than 2 channels, but when I do...
Im lookin for a new to me scope & wonderin if anyone hs one
of these or maybe another in it's class that they lie
OWON
SDS1102 Digital Storage Oscilloscope 2 Channels 100MHZ
thanks
animal
--
Buffalo John
--
Buffalo John
|
Re: anyone have one of these ?
The "DOS1102" part is the "standard" model name and there are multiple makers of that model. Standard chinese practice is there is a "design" and is branded by a bunch of trading companies. All are probably identical, though there are often lower priced versions that don't meet some spec. I found one on amazon for $170.
While non-recognisable brands might be a diamond in the rough, there is no way to tell. If you buy a name branded model, then you have a chance they have a reputation to look at.
If you are looking at waveforms and that is about it, you probably will find such a scope useful and satisfactory.
When I was in the market for a scope, I went with 4 channels and I am glad I did. I don't always need more than 2 channels, but when I do...
Im lookin for a new to me scope & wonderin if anyone hs one
of these or maybe another in it's class that they lie
OWON
SDS1102 Digital Storage Oscilloscope 2 Channels 100MHZ
thanks
animal
--
Buffalo John
|
BuffaloJohn
John Lindo