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Tachometer for 12" Atlas
开云体育Dan, I am sorry I don’t understand what this is needed for. ?The speed is controlled by changing the belt, and each setting has a specific speed. ? Kurt S. ? From: [email protected] <[email protected]>
On Behalf Of Dan and Marlene Coleman
Sent: Thursday, February 14, 2019 10:46 AM To: [email protected] Subject: [atlas-craftsman IO] Tachometer for 12" Atlas ? Any suggestions for a tachometer and mounting on an Atlas 12" lathe? |
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Kurt, often people want to see the spindle speed, for what ever reason. I am looking at going to ELS () and I will need spindle speed so Dan please keep us posted on what you come up with. I have a number of ideas and methods, none of which have been tried yet. Ralph On Thu, Feb 14, 2019 at 11:15 AM Kurt Sierens <ksierens@...> wrote:
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开云体育Ralph, ? Ok, that makes more sense then. ? Kurt S. ? From: [email protected] <[email protected]>
On Behalf Of Ralph Hulslander
Sent: Thursday, February 14, 2019 1:31 PM To: [email protected] Subject: Re: [atlas-craftsman IO] Tachometer for 12" Atlas ? Kurt, often people want to see the spindle speed, for what ever reason. I am looking at going to ELS () and I will need spindle speed so Dan please keep us posted on what you come up with. I have a number of ideas and methods, none of which have been tried yet. ? Ralph ? On Thu, Feb 14, 2019 at 11:15 AM Kurt Sierens <ksierens@...> wrote:
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开云体育??? While I haven't done it I understand that you can configure a
bicycle speedometer to serve as a tachometer.? Bill in Boulder CO
USA On 2/14/19 11:31 AM, Ralph Hulslander
wrote:
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Just had a look at the ELS link and saw this >>
Would that not do what you need if you go with the ELS? If you are going that route, ELS, why not also upgrade to a larger DC motor? I have converted my Bridgeport mill and my craftsman 12" lathe to 3 HP DC motors using ether LEESON & Pacific scientific motors from treadmills. These are full on commercial treadmill motors not the usual plastic junk treadmill motors. For speed control I am using KB electronics units. These can be wired into a control unit that can output PWM style signal and thus might be controlled by a ELS style control unit. I have had my lathe re-powered with the 3 hp pacific scientific motor and KB controller for about 6 months and it is the single best mod you can ever do to your atlas/craftsman lathe. I simply love love love it. If I were to do that now though, I would look into a 3 phase motor and VFD control instead of the DC. I think if you could score a good used 3 phase motor and use a new VFD it would be affordable. ~ |
开云体育
do you mind doing a show and tell on the 3Hp motor conversion? I have been thinking of getting a DC motor for my lathe and for the horizontal milling machine i have.?
From: [email protected] <[email protected]> on behalf of ncwonline@... <ncwonline@...>
Sent: Thursday, February 14, 2019 3:11 PM To: [email protected] Subject: Re: [atlas-craftsman IO] Tachometer for 12" Atlas ?
Just had a look at the ELS link and saw this >> Would that not do what you need if you go with the ELS? If you are going that route, ELS, why not also upgrade to a larger DC motor? I have converted my Bridgeport mill and my craftsman 12" lathe to 3 HP DC motors using ether LEESON & Pacific scientific motors from treadmills. These are full on commercial treadmill motors not the usual plastic junk treadmill motors. For speed control I am using KB electronics units. These can be wired into a control unit that can output PWM style signal and thus might be controlled by a ELS style control unit. I have had my lathe re-powered with the 3 hp pacific scientific motor and KB controller for about 6 months and it is the single best mod you can ever do to your atlas/craftsman lathe. I simply love love love it. If I were to do that now though, I would look into a 3 phase motor and VFD control instead of the DC. I think if you could score a good used 3 phase motor and use a new VFD it would be affordable. ~ |
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Why 3hp? Besides that is what treadmill motors are. I doubt these lathes and mills need much more hp than what they were designed?for. One might be throwing money at things that don't really need it. Of course I upgrade both my mill and my 14" Delta bandsaw with a . I will also do my 12x36 Craftsman lathe. Ralph On Thu, Feb 14, 2019 at 3:26 PM Andrei <calciu1@...> wrote:
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From: [email protected] <[email protected]> on behalf of Ralph Hulslander <rhulslander@...>
Sent: Thursday, February 14, 2019 4:05:59 PM To: [email protected] Subject: Re: [atlas-craftsman IO] Tachometer for 12" Atlas ?
Why 3hp? Besides that is what treadmill motors are.
I doubt these lathes and mills need much more hp than what they were designed?for.
One might be throwing money at things that don't really need it.
Of course I upgrade both my mill and my 14" Delta bandsaw with a .
I will also do my 12x36 Craftsman lathe.
Ralph
On Thu, Feb 14, 2019 at 3:26 PM Andrei <calciu1@...> wrote:
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If you do not need a continuous speed reading, one solution would one of those relatively inexpensive, hand held, laser units with digital readout.? I believe the counter within is crystal controlled, so the accuracy should be in the 0.01% region.? These meters come with a supply of reflective tape.? You just place a narrow strip on a chuck or the like and point the laser beam while the machine is running.? An advantage is that you can use it on any number of machines and for such things as setting the idle speed of your automobile engine.?
I bought mine to measure the chuck speed of a micro drill press I was making and wanted to be able to read up to 25,000 RPM.? It worked fine.? This was about ten years ago.? I do not know what these units currently cost, but I think I paid about $28.
Bruce
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Man a lot of members here like gadgets if you want to control the speed on your lathe i would use a in line ( power line ) control.? ? I think it may be cheaper and easy to install? GP
On Thursday, February 14, 2019, 4:51:01 PM EST, Andrei <calciu1@...> wrote:
He mentioned 3hp. I am happy with 1hp for my machines
Get
From: [email protected] <[email protected]> on behalf of Ralph Hulslander <rhulslander@...>
Sent: Thursday, February 14, 2019 4:05:59 PM To: [email protected] Subject: Re: [atlas-craftsman IO] Tachometer for 12" Atlas ?
Why 3hp? Besides that is what treadmill motors are.
I doubt these lathes and mills need much more hp than what they were designed?for.
One might be throwing money at things that don't really need it.
Of course I upgrade both my mill and my 14" Delta bandsaw with a .
I will also do my 12x36 Craftsman lathe.
Ralph
On Thu, Feb 14, 2019 at 3:26 PM Andrei <calciu1@...> wrote:
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And your machines are much happier, too. ?The Atlas was designed for less than 1 HP, and there are lots of parts - the back gears, the bull gear lock pin, etc. - that could easily be broken by too much power.
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-----Original Message-----
From: Andrei <calciu1@...> To: [email protected] <[email protected]> Sent: Thu, Feb 14, 2019 4:50 pm Subject: Re: [atlas-craftsman IO] Tachometer for 12" Atlas
He mentioned 3hp. I am happy with 1hp for my machines
From: [email protected] <[email protected]> on behalf of Ralph Hulslander <rhulslander@...>
Sent: Thursday, February 14, 2019 4:05:59 PM To: [email protected] Subject: Re: [atlas-craftsman IO] Tachometer for 12" Atlas ?
Why 3hp? Besides that is what treadmill motors are.
I doubt these lathes and mills need much more hp than what they were designed?for.
One might be throwing money at things that don't really need it.
Of course I upgrade both my mill and my 14" Delta bandsaw with a
3/4 hp BLDC motor.
I will also do my 12x36 Craftsman lathe.
Ralph
On Thu, Feb 14, 2019 at 3:26 PM Andrei <calciu1@...> wrote:
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Guenther, this is about reading spindle speed not controlling it! Ralph On Thu, Feb 14, 2019 at 5:11 PM jmartin957 <jmartin957@...> via Groups.Io <jmartin957=[email protected]> wrote: And your machines are much happier, too.? The Atlas was designed for less than 1 HP, and there are lots of parts - the back gears, the bull gear lock pin, etc. - that could easily be broken by too much power. |
Robert
ebrucehunter
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