开云体育

Motor wiring question

Steve Bergeron All Messages By This Member #116694 I have an Atlas QC42 that is ready for a motor. I have this switch: /g/atlas-craftsman/files/18%20Electrical%20-%20All%20Stock%20Hookups/Reversing%20Switch%20Wiring%20Furnas%20A14%20Atlas%20Motors.pdf I want to use a 3/4HP motor. ? I need to obtain one. I am unsure if I am to use the switch (noted above) do I still use the on/off toggle switch in the headstock? Since I need to obtain a motor anyway, what Motor would be best to use with that switch? Steve B, in Oregon ?
mike allen Member Profile All Messages By This Member #116695 开云体育 ??? Those lathes were spec'd for a 1/3-1/2 hp motor . animal On 6/9/24 2:48 PM, Steve Bergeron wrote: toggle quoted message Show quoted text I have an Atlas QC42 that is ready for a motor. I have this switch: /g/atlas-craftsman/files/18%20Electrical%20-%20All%20Stock%20Hookups/Reversing%20Switch%20Wiring%20Furnas%20A14%20Atlas%20Motors.pdf I want to use a 3/4HP motor. ? I need to obtain one. I am unsure if I am to use the switch (noted above) do I still use the on/off toggle switch in the headstock? Since I need to obtain a motor anyway, what Motor would be best to use with that switch? Steve B, in Oregon ?
Steve Bergeron All Messages By This Member #116696 开云体育 I think I based my view on a 3/4hp because of the later "Commercial" variants used a 3/4hp. ? ? If 1/2hp would be fine, I will go with 1/2hp. ? Steve toggle quoted message Show quoted text On Jun 9, 2024, at 2:59?PM, mike allen via groups.io <animal@...> wrote: ? ??? Those lathes were spec'd for a 1/3-1/2 hp motor . animal On 6/9/24 2:48 PM, Steve Bergeron wrote: I have an Atlas QC42 that is ready for a motor. I have this switch: /g/atlas-craftsman/files/18%20Electrical%20-%20All%20Stock%20Hookups/Reversing%20Switch%20Wiring%20Furnas%20A14%20Atlas%20Motors.pdf I want to use a 3/4HP motor. ? I need to obtain one. I am unsure if I am to use the switch (noted above) do I still use the on/off toggle switch in the headstock? Since I need to obtain a motor anyway, what Motor would be best to use with that switch? Steve B, in Oregon ?
Jim F All Messages By This Member #116697 开云体育 I would install a second switch in the headstock that comes straight from your wall outlet, through the headstock switch, then to the forward / reverse switch.? In the event that you need to shut the lathe off quickly, you use the headstock master switch.? toggle quoted message Show quoted text On Jun 9, 2024, at 3:02?PM, Steve Bergeron via groups.io <steve.m.bergeron@...> wrote: ? I think I based my view on a 3/4hp because of the later "Commercial" variants used a 3/4hp. ? ? If 1/2hp would be fine, I will go with 1/2hp. ? Steve On Jun 9, 2024, at 2:59?PM, mike allen via groups.io <animal@...> wrote: ? ??? Those lathes were spec'd for a 1/3-1/2 hp motor . animal On 6/9/24 2:48 PM, Steve Bergeron wrote: I have an Atlas QC42 that is ready for a motor. I have this switch: /g/atlas-craftsman/files/18%20Electrical%20-%20All%20Stock%20Hookups/Reversing%20Switch%20Wiring%20Furnas%20A14%20Atlas%20Motors.pdf I want to use a 3/4HP motor. ? I need to obtain one. I am unsure if I am to use the switch (noted above) do I still use the on/off toggle switch in the headstock? Since I need to obtain a motor anyway, what Motor would be best to use with that switch? Steve B, in Oregon ?
Steve Bergeron All Messages By This Member #116698 Thank you Jim, It seemed like a good idea to maintain that switch. Steve toggle quoted message Show quoted text On Jun 9, 2024, at 6:51?PM, Jim F ?I would install a second switch in the headstock that comes straight from your wall outlet, through the headstock switch, then to the forward / reverse switch. In the event that you need to shut the lathe off quickly, you use the headstock master switch.
Bill in OKC too All Messages By This Member #116699 Steve, you don't need a 3/4HP motor, but you do need a reversible motor. My TH42 has a 1/2HP motor from the factory, and it will probably be cheaper to find a 1/2HP & reversible motor. If you have 220 or 240 VAC power, that would be a bit better, and if you can get a VFD & 3phase motor, that will be better still.? Not saying you can't have one if that's what you want, but the Atlas lathes are not as rigid as heavier lathes, and they can't take as much advantage of the extra power. Those motors are also more expensive.? The lighter motors will not cause as much wear on your switch, and are less likely to cause severe damage if you crash the lathe. A 3/4HP motor at 120VAC draws about 4.67amps, for about 560watts of power. The same motor on 220VAC draws about 2.5 amps for the same power. A 1/2HP motor draws about 373 watts of power at 120VAC and about 3.1amps, where the same motor at 220VAC draws about 1.7amps.? And you can do anything on a smaller/more flexible lathe you can on a big stiff lathe except take deep cuts quickly. You're trading smaller size and weight for speed. There are folks with 1HP motors, and folks with 1/4HP & 1/3HP motors, too. If you don't mess up something else, any of them will do for you. But the lower the HP rating, the less the motor will cost, and lighter it will be.? HTH! Bill in OKC William R. Meyers, MSgt, USAF(Ret.) Aphorisms to live by: Good judgement comes from experience. Experience comes from bad judgement.? SEMPER GUMBY! Improvise, Adapt, and Overcome. Physics doesn't care about your schedule. The only reason I know anything is because I've done it wrong enough times to START to know better. Expect in one hand, expectorate in the other. See which one gets full first. On Sunday, June 9, 2024 at 04:48:49 PM CDT, Steve Bergeron <steve.m.bergeron@...> wrote: I have an Atlas QC42 that is ready for a motor. I have this switch: /g/atlas-craftsman/files/18%20Electrical%20-%20All%20Stock%20Hookups/Reversing%20Switch%20Wiring%20Furnas%20A14%20Atlas%20Motors.pdf I want to use a 3/4HP motor. ? I need to obtain one. I am unsure if I am to use the switch (noted above) do I still use the on/off toggle switch in the headstock? Since I need to obtain a motor anyway, what Motor would be best to use with that switch? Steve B, in Oregon ?
David Ghilarducci All Messages By This Member #116700 开云体育 I picked up an Atlas/Craftsman 12” a few months back fitted with a 1hp motor. The bull gear and other gears were stripped, which I believe had at least something to do with a crash AND an oversized motor. Replaced it with a1/2HP 3phase with a VFD…very happy with it now. toggle quoted message Show quoted text On Jun 9, 2024, at 2:59?PM, mike allen via groups.io <animal@...> wrote: ??? Those lathes were spec'd for a 1/3-1/2 hp motor . animal On 6/9/24 2:48 PM, Steve Bergeron wrote: I have an Atlas QC42 that is ready for a motor. I have this switch: /g/atlas-craftsman/files/18%20Electrical%20-%20All%20Stock%20Hookups/Reversing%20Switch%20Wiring%20Furnas%20A14%20Atlas%20Motors.pdf I want to use a 3/4HP motor. ? I need to obtain one. I am unsure if I am to use the switch (noted above) do I still use the on/off toggle switch in the headstock? Since I need to obtain a motor anyway, what Motor would be best to use with that switch? Steve B, in Oregon ?
mike allen Member Profile All Messages By This Member #116701 开云体育 Ya stand less of a chance of breaking something that way . On 6/9/24 3:01 PM, Steve Bergeron wrote: toggle quoted message Show quoted text I think I based my view on a 3/4hp because of the later "Commercial" variants used a 3/4hp. ? ? If 1/2hp would be fine, I will go with 1/2hp. ? Steve On Jun 9, 2024, at 2:59?PM, mike allen via groups.io <animal@...> wrote: ? ??? Those lathes were spec'd for a 1/3-1/2 hp motor . animal On 6/9/24 2:48 PM, Steve Bergeron wrote: I have an Atlas QC42 that is ready for a motor. I have this switch: /g/atlas-craftsman/files/18%20Electrical%20-%20All%20Stock%20Hookups/Reversing%20Switch%20Wiring%20Furnas%20A14%20Atlas%20Motors.pdf I want to use a 3/4HP motor. ? I need to obtain one. I am unsure if I am to use the switch (noted above) do I still use the on/off toggle switch in the headstock? Since I need to obtain a motor anyway, what Motor would be best to use with that switch? Steve B, in Oregon ?
Ken H All Messages By This Member #116702 I like to leave just a little slack in the belt tension as a safety clutch, I'd much rather have that slip than break something. -- Ken H in AZ Knowledge is like manure, it won't do any good unless you spread it around.
Renaissance 1 All Messages By This Member #116703 开云体育 If the machine is hard wired then a disconnect would make sense Sent from phone toggle quoted message Show quoted text On Jun 10, 2024, at 1:09?PM, Ken H <dreamcrafters@...> wrote: ?I like to leave just a little slack in the belt tension as a safety clutch, I'd much rather have that slip than break something. -- Ken H in AZ Knowledge is like manure, it won't do any good unless you spread it around.
Ralph Hulslander All Messages By This Member #116704 re: " A 3/4HP motor at 120VAC draws about 4.67amps, for about 560watts of power. The same motor on 220VAC draws about 2.5 amps for the same power." The 220 VAC draws about 2.5 amps per leg! 220 VAC uses two legs or hot wires! Ralph toggle quoted message Show quoted text On Mon, Jun 10, 2024 at 5:12?PM Renaissance 1 via <nthomas9418=[email protected]> wrote: If the machine is hard wired then a disconnect would make sense Sent from phone On Jun 10, 2024, at 1:09?PM, Ken H <dreamcrafters@...> wrote: ?I like to leave just a little slack in the belt tension as a safety clutch, I'd much rather have that slip than break something. -- Ken H in AZ Knowledge is like manure, it won't do any good unless you spread it around.
Bill in OKC too All Messages By This Member #116705 Still less current draw across a set of contacts. Which makes for longer useful life of that set of contacts. Bill in OKC William R. Meyers, MSgt, USAF(Ret.) Aphorisms to live by: Good judgement comes from experience. Experience comes from bad judgement.? SEMPER GUMBY! Improvise, Adapt, and Overcome. Physics doesn't care about your schedule. The only reason I know anything is because I've done it wrong enough times to START to know better. Expect in one hand, expectorate in the other. See which one gets full first. On Wednesday, June 12, 2024 at 07:22:14 PM CDT, Ralph Hulslander <rhulslander@...> wrote: re: " A 3/4HP motor at 120VAC draws about 4.67amps, for about 560watts of power. The same motor on 220VAC draws about 2.5 amps for the same power." The 220 VAC draws about 2.5 amps per leg! 220 VAC uses two legs or hot wires! Ralph toggle quoted message Show quoted text On Mon, Jun 10, 2024 at 5:12?PM Renaissance 1 via <nthomas9418=[email protected]> wrote: If the machine is hard wired then a disconnect would make sense Sent from phone On Jun 10, 2024, at 1:09?PM, Ken H <dreamcrafters@...> wrote: ?I like to leave just a little slack in the belt tension as a safety clutch, I'd much rather have that slip than break something. -- Ken H in AZ Knowledge is like manure, it won't do any good unless you spread it around.

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