[Emc-users] ESR testing [Was: Cute little machine]

2015-09-17 Thread Erik Christiansen
On an old thread; 08.05.15 05:29, Mark Wendt wrote: > I bought a little transistor/cap tester kit from Banggood a while back, Having followed suit, I was disappointed today to find a new/old-stock great fat 10,000 uF electrolytic giving an ESR reading of 0.8 ohm. Being, at least philosophically,

Re: [Emc-users] near module has me confused

2015-09-17 Thread andy pugh
On 17 September 2015 at 02:32, Gene Heskett wrote: > So what do I set its TOL and SCALE at to achieve this, and better yet, > how did you go about determining the proper settings to do that? It's a fairly simple comp, maybe loooking at the source code will help?

Re: [Emc-users] ESR testing [Was: Cute little machine]

2015-09-17 Thread Mark Wendt
On Thu, Sep 17, 2015 at 5:09 AM, Erik Christiansen wrote: > On an old thread; 08.05.15 05:29, Mark Wendt wrote: >> I bought a little transistor/cap tester kit from Banggood a while back, > > Having followed suit, I was disappointed today to find a new/old-stock > great

Re: [Emc-users] ESR testing [Was: Cute little machine]

2015-09-17 Thread Erik Christiansen
On 17.09.15 05:54, Mark Wendt wrote: > I haven't checked my transistor/cap tester against a real ESR meter I > have for my bench, so I don't know how accurate it is at that. My > electronics stuff is all packed up right now, waiting to be put in the > moving van, so I won't have a chance to play

Re: [Emc-users] ESR testing [Was: Cute little machine]

2015-09-17 Thread Gene Heskett
On Thursday 17 September 2015 05:09:07 Erik Christiansen wrote: > On an old thread; 08.05.15 05:29, Mark Wendt wrote: > > I bought a little transistor/cap tester kit from Banggood a while > > back, > > Having followed suit, I was disappointed today to find a new/old-stock > great fat 10,000 uF

Re: [Emc-users] ESR testing [Was: Cute little machine]

2015-09-17 Thread Mark Wendt
On Thu, Sep 17, 2015 at 8:48 AM, Erik Christiansen wrote: > On 17.09.15 05:54, Mark Wendt wrote: >> I haven't checked my transistor/cap tester against a real ESR meter I >> have for my bench, so I don't know how accurate it is at that. My >> electronics stuff is all

Re: [Emc-users] Lathe cutting forces

2015-09-17 Thread Ed
On 09/17/2015 07:57 AM, andy pugh wrote: > To size motors, screws, bearings etc for my CNC lathe conversion I > have been trying to find cutting force data. > > http://www.ijera.com/papers/Vol4_issue4/Version%201/U044134144.pdf > > Seems to say that a feed force of 100N is about normal. > This

Re: [Emc-users] Lathe cutting forces

2015-09-17 Thread Rick Lair
I know that our big machines have 7.5 kw Z axis motors, and 3.5 kw X axis motors. On 9/17/2015 8:57 AM, andy pugh wrote: > To size motors, screws, bearings etc for my CNC lathe conversion I > have been trying to find cutting force data. > >

[Emc-users] Lathe cutting forces

2015-09-17 Thread andy pugh
To size motors, screws, bearings etc for my CNC lathe conversion I have been trying to find cutting force data. http://www.ijera.com/papers/Vol4_issue4/Version%201/U044134144.pdf Seems to say that a feed force of 100N is about normal. This seems rather less than I would have guessed. Does

Re: [Emc-users] Lathe cutting forces

2015-09-17 Thread Erik Christiansen
On 17.09.15 08:36, Ed wrote: > On 09/17/2015 07:57 AM, andy pugh wrote: > > Seems to say that a feed force of 100N is about normal. > > This seems rather less than I would have guessed. > > > > Does anyone else have any feel for this. I have been designing around > > 2kN, and I know that many CNC

Re: [Emc-users] Lathe cutting forces

2015-09-17 Thread andy pugh
On 17 September 2015 at 14:36, Ed wrote: > Many CNC lathes push large twist drills and spade drills through some > tough material. How big do you plan? My current lathe has stepper motors, and stalls if asked to push a big drill, so in fact my 2kN number was derived from asking

Re: [Emc-users] ESR testing [Was: Cute little machine]

2015-09-17 Thread Erik Christiansen
On 17.09.15 09:39, Gene Heskett wrote: > On Thursday 17 September 2015 05:09:07 Erik Christiansen wrote: > The fact that you shorted it while charged with only the meters volt or > so charge, and "fixed" it, which punches thru the foil oxides and > restores a good but temporary connection,

Re: [Emc-users] near module has me confused

2015-09-17 Thread Gene Heskett
On Thursday 17 September 2015 10:44:07 Gene Heskett wrote: > Thanks for the link Andy, thats very helpful. I'll have to play with > a calculator of course, some of which you see above, but now I have a > clue as to what the heck i am doing rather than blindly trying numbers > for effect. > >

[Emc-users] CAD/CAM for LinuxCNC

2015-09-17 Thread John Dammeyer
Hi, I've been using Alibre (now Geomagic) and the VisualCAM plugin for generating G-Code. MecSoft will no longer be supporting the plugin and has offered a standalone version of VisualCAM. When 3D Systems purchased Alibre I wondered whether it would eventually just become a CAD system for rapid

Re: [Emc-users] CAD/CAM for LinuxCNC

2015-09-17 Thread Jason Burton
Fusion 360 CAM is very nice. On Thu, Sep 17, 2015 at 11:49 PM, John Dammeyer wrote: > Hi, > I've been using Alibre (now Geomagic) and the VisualCAM plugin for > generating G-Code. MecSoft will no longer be supporting the plugin and has > offered a standalone version of

Re: [Emc-users] CAD/CAM for LinuxCNC

2015-09-17 Thread John Dammeyer
> -Original Message- > From: Jason Burton [mailto:lathebuil...@gmail.com] > Sent: September-17-15 10:08 PM > To: Enhanced Machine Controller (EMC) > Subject: Re: [Emc-users] CAD/CAM for LinuxCNC > > > Fusion 360 CAM is very nice. > I went to the web site and tried to download from