Most industrial style limit switches offer both nc/no (normally closed/normally open). Legacy used normally closed. They broke the power to the motor. The over ride switch closed the connection to the motor so you could switch the direction of the motor and back off the limit switch.
Ebay is a good source, other wise they are very expensive via standard industrial supply houses. From: 'Denson Ingram' via Legacy Ornamental Mills <legacy-ornamental-mills@googlegroups.com> Sent: Friday, June 19, 2020 5:45 PM To: legacy-ornamental-mills@googlegroups.com Subject: Re: Want to put a motor my 1200 Does anyone have the specs on the original legacy lead screw limit switches or know where I can find two that will work on LOM? Thanks Denson Sent from Denson's iPhone On Jun 19, 2020, at 7:15 PM, bulke...@mmnet.com.au <mailto:bulke...@mmnet.com.au> wrote: I think that is quite a good deal considering back in the day to buy from legacy was almost $1000 Bill From: 'Denson Ingram' via Legacy Ornamental Mills <legacy-ornamental-mills@googlegroups.com <mailto:legacy-ornamental-mills@googlegroups.com> > Sent: Saturday, 20 June 2020 8:31 AM To: legacy-ornamental-mills@googlegroups.com <mailto:legacy-ornamental-mills@googlegroups.com> Subject: Re: Want to put a motor my 1200 Well just bought a Dayton 4Z131B new on eBay for under $200 shipped. Found a nice controller on eBay as well around $115 shipped. Now just need limit switches and a mounting plate. Hope I got a good price. All those I’ve asked said yes. Denson Sent from Denson's iPhone On Jun 19, 2020, at 2:57 PM, wkhill99 . <wkhil...@gmail.com <mailto:wkhil...@gmail.com> > wrote: Bill, A 387 oz nema-23 has 24lbs/in of torque. What are your thoughts on how strong it needs to be? This goes back to my earlier question about proper sizing. I don't think I've ever applied that much force when turning on my LOM but then again many folks may have used their machine in a different capacity. Dustin, How much did your setup set you back (if you don't mind me asking)? I noticed that you are using Mach3. You've essentially turned your LOM into a CNC Lathe and small bed CNC. What would you do differently in retrospect? Wes On Fri, Jun 19, 2020 at 11:06 AM <bulke...@mmnet.com.au <mailto:bulke...@mmnet.com.au> > wrote: Looks impressive but I think the motor would need to be much bigger to get the torque to work the legacy Bill From: legacy-ornamental-mills@googlegroups.com <mailto:legacy-ornamental-mills@googlegroups.com> <legacy-ornamental-mills@googlegroups.com <mailto:legacy-ornamental-mills@googlegroups.com> > On Behalf Of wkhill99 . Sent: Friday, 19 June 2020 2:05 PM To: legacy-ornamental-mills@googlegroups.com <mailto:legacy-ornamental-mills@googlegroups.com> Subject: Re: Want to put a motor my 1200 Hey Bill, Steppers are variable speed and can have pretty high torque at low speeds. Just needs to be sized correctly for the LOM (I'm thinking a nema 23 or 34). Here's an example youtube: https://www.youtube.com/watch?v=2FsA1yoZ840 About 1 min or so into the video, the fellow has the motor going really slowly. Wes On Thu, Jun 18, 2020 at 10:39 PM <bulke...@mmnet.com.au <mailto:bulke...@mmnet.com.au> > wrote: I don’t know anything about stepper motors aren’t they high speed rpm or can they run slow without torque loss Bill From: legacy-ornamental-mills@googlegroups.com <mailto:legacy-ornamental-mills@googlegroups.com> <legacy-ornamental-mills@googlegroups.com <mailto:legacy-ornamental-mills@googlegroups.com> > On Behalf Of wkhill99 . Sent: Wednesday, 17 June 2020 1:12 PM To: legacy-ornamental-mills@googlegroups.com <mailto:legacy-ornamental-mills@googlegroups.com> Subject: Re: Want to put a motor my 1200 Has anyone considered using stepper motors / drivers with their legacy, like a nema-23 or 34? Wes On Tue, Jun 16, 2020 at 7:09 PM <bulke...@mmnet.com.au <mailto:bulke...@mmnet.com.au> > wrote: Legacys exact motor was a dayton 4Z131B 90volt dc motor Bill -----Original Message----- From: legacy-ornamental-mills@googlegroups.com <mailto:legacy-ornamental-mills@googlegroups.com> <legacy-ornamental-mills@googlegroups.com <mailto:legacy-ornamental-mills@googlegroups.com> > On Behalf Of JOHNNY L TYLER Sent: Wednesday, 17 June 2020 9:58 AM To: legacy-ornamental-mills@googlegroups.com <mailto:legacy-ornamental-mills@googlegroups.com> Subject: Re: Want to put a motor my 1200 Thanks for the clarification, John. I very much appreciate the follow-up! John Tyler ________________________________________ From: legacy-ornamental-mills@googlegroups.com <mailto:legacy-ornamental-mills@googlegroups.com> <legacy-ornamental-mills@googlegroups.com <mailto:legacy-ornamental-mills@googlegroups.com> > on behalf of John Hennen <john.hen...@gmail.com <mailto:john.hen...@gmail.com> > Sent: Tuesday, June 16, 2020 3:32 PM To: legacy-ornamental-mills@googlegroups.com <mailto:legacy-ornamental-mills@googlegroups.com> Subject: Re: Want to put a motor my 1200 Grainge stopped making the speed control in 2005. The DC motor we used ended in 2008. I recommended a Dzc motor with a 5/8 shaft. But you may have forgotten that. The speed control you will need to fit the motor. On Tue, Jun 16, 2020, 4:18 PM JOHNNY L TYLER <cloudanc...@msn.com <mailto:cloudanc...@msn.com> <mailto:cloudanc...@msn.com <mailto:cloudanc...@msn.com> >> wrote: Update: I called Legacy and was told by John that Grainger no longer makes/supplies the motor or limit switches. More discouraging was the news that he has no other sources to recommend to me/us. Dead end there! Looks like Bill is the resident expert on do-it-yourself drive motors! John Tyler ________________________________________ From: 'Denson Ingram' via Legacy Ornamental Mills <legacy-ornamental-mills@googlegroups.com <mailto:legacy-ornamental-mills@googlegroups.com> <mailto:legacy-ornamental-mills@googlegroups.com <mailto:legacy-ornamental-mills@googlegroups.com> >> Sent: Saturday, June 13, 2020 1:49 PM To: legacy-ornamental-mills@googlegroups.com <mailto:legacy-ornamental-mills@googlegroups.com> <mailto:legacy-ornamental-mills@googlegroups.com <mailto:legacy-ornamental-mills@googlegroups.com> > Subject: Re: Want to put a motor my 1200 Thanks Joe I’ll check out Grainger Sent from Denson's iPhone > On Jun 13, 2020, at 3:18 PM, 'joe biunno' via Legacy Ornamental Mills > <legacy-ornamental-mills@googlegroups.com > <mailto:legacy-ornamental-mills@googlegroups.com> > <mailto:legacy-ornamental-mills@googlegroups.com > <mailto:legacy-ornamental-mills@googlegroups.com> >> wrote: > > If I remember correctly, the same motor Legacy used can be gotten from WE > Grainger... the bracket you will have to make yourself... the limit switches > can probably also be gotten from Grainger... and you can put together the > speed control switch and override switch in a box, all should be available > from Grainger ... 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