Re: [Emc-users] brushless sewing machine motors

2018-07-09 Thread John Bald
That particular ad says "US Stock", but looks like it's 220v 50hz which won't work in the US On Monday, July 9, 2018 12:09 AM, Ralph Stirling wrote: Anybody ever checked out this type of motor for CNC use?  Seems like a pretty good deal for 400W with a drive, at least for a small

Re: [Emc-users] Spindle Motors

2018-05-30 Thread John Bald
.  On Wednesday, May 30, 2018 6:05 PM, Gene Heskett wrote: On Wednesday 30 May 2018 17:52:03 John Bald wrote: > I picked up a couple of surplus marathon 1.5hp inverter duty 1000:1 > motors awhile back like this one: > https://www.regalbeloit.com/Products/Catalog?model=145THTR5328 >

Re: [Emc-users] Spindle Motors

2018-05-30 Thread John Bald
I picked up a couple of surplus marathon 1.5hp inverter duty 1000:1 motors awhile back like this one: https://www.regalbeloit.com/Products/Catalog?model=145THTR5328 My plan is to replace the original single phase/single speed 1hp motor on my PM727 mill and also add belt drive similar to what

Re: [Emc-users] Zeiss touch probes

2018-05-12 Thread John Bald
My Fluke 87 same way. The "beep" mode is turned separately after resistance mode is selected.  Only works at very low resistances Show original message On Thursday, May 10, 2018 5:35 PM, andy pugh wrote: On 10 May 2018 at 23:14, Rene Hopf

Re: [Emc-users] New $33 60GB SSD's from newegg

2017-10-28 Thread John Bald
I've had two 128g SSD's fail on my thinkpad laptop. The original failed after about 3 years and they sent me a replacement under warranty. It failed after about 2 years. When I looked at replacements at newegg, got a kid on live chat that likes to build gaming PC's. He said to avoid some of

Re: [Emc-users] Spanning beam lathe stand

2017-10-04 Thread John Bald
t> wrote: On Wednesday 04 October 2017 05:43:19 andy pugh wrote: On 4 October 2017 at 02:32, John Bald <robotwiz...@att.net> wrote: > Has anyone built or familiar with the "spanning beam" or "torsional" > beam lathe stand? It seems to be giving a fancy name to a

Re: [Emc-users] Spanning beam lathe stand

2017-10-03 Thread John Bald
gement of the beam/s when using epoxy granite with metal tubes and beams than epoxy granite and its formulation. -Bari On 10/03/2017 09:03 PM, John Bald wrote: Isn't that the same thing as the epoxy-granite used for machine tools I mentioned in my original post, or is this something different?

Re: [Emc-users] Spanning beam lathe stand

2017-10-03 Thread John Bald
you'd like to see how to add dampening to a beam with polymer concrete/granite. Principles of rapid machine design https://dspace.mit.edu/bitstream/handle/1721.1/88839/45993343-MIT.pdf?sequence=2 -Bari On 10/03/2017 08:32 PM, John Bald wrote: Has anyone built or familiar with the "sp

[Emc-users] Spanning beam lathe stand

2017-10-03 Thread John Bald
Has anyone built or familiar with the "spanning beam" or "torsional" beam lathe stand? users.tpg.com.au/agnet/cq9325rev4.html Some youtube videos about them too. Idea is based on methods used for lathes on ships. I wonder if one could fill the square tubing with epoxy-granite for added

Re: [Emc-users] Machine bench design vibration and twist

2017-09-17 Thread John Bald
.09.17 16:37, John Bald wrote: Have a few options for used stands and cart that I might be able to modify that could work for the mill, but haven't found anything that could be made to work for the lathe. Used to buy used steel from local scrap yards for projects a lot, but they won't sell it an

Re: [Emc-users] Machine bench design vibration and twist

2017-09-16 Thread John Bald
ey can resell for more than scrap value.  Call a few up and see what they have. Also check Ebay and Craigslist.   A heavy  welded steel table is oftentimes difficult to get rid of. On 9/16/2017 5:11 PM, John Bald wrote: Thanks for reply. The stability of the wood depends on the variety and

Re: [Emc-users] Machine bench design vibration and twist

2017-09-16 Thread John Bald
lathe. The stand is so heavy it helps dampen any vibration. Wood moves over time. Marcus On 16 Sep 2017, at 20:18, John Bald wrote: Need to build a couple stands for 11x27 benchtop lathe and benchtop mill. My thoughts are to make the lathe stand as one rigid box as opposed to the more common se

[Emc-users] Machine bench design vibration and twist

2017-09-16 Thread John Bald
Need to build a couple stands for 11x27 benchtop lathe and benchtop mill. My thoughts are to make the lathe stand as one rigid box as opposed to the more common separate pedestal style to make use of storage space. Want to use 4 x 4 wood for rails on top and steel plates on top of 4 x 4's for