Re: [Emc-users] Gantry Best Practices

2014-02-20 Thread Tom Easterday
On Feb 19, 2014, at 12:42 AM, Charles Steinkuehler char...@steinkuehler.net wrote: If I'm following things correctly, you're doing something very similar to the HAL gantry component I just created: applying the same commanded position to each gantry joint, providing for an offset between the

Re: [Emc-users] Gantry Best Practices

2014-02-18 Thread Mark Wendt
On Mon, Feb 17, 2014 at 5:47 PM, Steve Blackmore st...@pilotltd.net wrote: Sorry, but I don't consider changing the machine to fit the tool to be an acceptable solution. Then your stuck with a known problematic design. I wish I had a pound for each complaint/query/moan I've seen and heard

Re: [Emc-users] Gantry Best Practices

2014-02-18 Thread Len Shelton
If you design a machine to be affordable, lightweight, and easy(er) to manufacture, but requires some software assistance to do that, that's not necessarily problematic. I would call that innovative - making use of all of the tools and resources available to you to solve a problem. Len

Re: [Emc-users] Gantry Best Practices

2014-02-18 Thread Steve Blackmore
On Tue, 18 Feb 2014 10:37:12 -0500, you wrote: Hey, all! I normally just listen to the wisdom spouted by all you experts (the status of which I aspire to reach someday!). I built my own gantry-style router running LCNC. Each side of the gantry is driven by it's own stepper and Acme screw.

Re: [Emc-users] Gantry Best Practices

2014-02-18 Thread Tom Easterday
I will just (once again) point to http://wiki.linuxcnc.org/cgi-bin/wiki.pl?GantryPlasmaMachine Two servo motors/encoders on the Y axis, trivkins configuration (configs are in the links on the page). Gets an amazing amount of use at Maker Works in Ann Arbor and runs great. See catchy video

Re: [Emc-users] Gantry Best Practices

2014-02-18 Thread Charles Steinkuehler
On 2/18/2014 6:13 PM, Tom Easterday wrote: I will just (once again) point to http://wiki.linuxcnc.org/cgi-bin/wiki.pl?GantryPlasmaMachine Thanks, I somehow missed that previously. Two servo motors/encoders on the Y axis, trivkins configuration (configs are in the links on the page). Gets an

Re: [Emc-users] Gantry Best Practices

2014-02-17 Thread Steve Blackmore
On Sun, 16 Feb 2014 16:51:06 -0600, you wrote: On 2/16/2014 4:03 PM, Steve Blackmore wrote: On Sun, 16 Feb 2014 14:11:13 -0600, you wrote: With the recent release and general popularity of the ShapeOko V2 desktop mini-mill, I have several folks who are trying to use LinuxCNC running on the

Re: [Emc-users] Gantry Best Practices

2014-02-17 Thread Charles Steinkuehler
On 2/17/2014 4:47 PM, Steve Blackmore wrote: On Sun, 16 Feb 2014 16:51:06 -0600, you wrote: On 2/16/2014 4:03 PM, Steve Blackmore wrote: On Sun, 16 Feb 2014 14:11:13 -0600, you wrote: With the recent release and general popularity of the ShapeOko V2 desktop mini-mill, I have several folks

Re: [Emc-users] Gantry Best Practices

2014-02-17 Thread Marius Liebenberg
Charles, I use LCNC on gantry routers and plasma machines with dual steppers on the X axis all the time. I simply slave the second motor in the HAL file with an inverted DIR signal. I have my motors driving on a Rack and Pinion setup always and I have a spring loaded motor plate to apply

Re: [Emc-users] Gantry Best Practices

2014-02-17 Thread Gregg Eshelman
On 2/17/2014 3:47 PM, Steve Blackmore wrote: On Sun, 16 Feb 2014 16:51:06 -0600, you wrote: Sorry, but I don't consider changing the machine to fit the tool to be an acceptable solution. Then your stuck with a known problematic design. I wish I had a pound for each complaint/query/moan I've

[Emc-users] Gantry Best Practices

2014-02-16 Thread Charles Steinkuehler
With the recent release and general popularity of the ShapeOko V2 desktop mini-mill, I have several folks who are trying to use LinuxCNC running on the BeagleBone as a control. If you are unfamiliar with this machine, here's a link:

Re: [Emc-users] Gantry Best Practices

2014-02-16 Thread Steve Blackmore
On Sun, 16 Feb 2014 14:11:13 -0600, you wrote: With the recent release and general popularity of the ShapeOko V2 desktop mini-mill, I have several folks who are trying to use LinuxCNC running on the BeagleBone as a control. If you are unfamiliar with this machine, here's a link:

Re: [Emc-users] Gantry Best Practices

2014-02-16 Thread Charles Steinkuehler
On 2/16/2014 4:03 PM, Steve Blackmore wrote: On Sun, 16 Feb 2014 14:11:13 -0600, you wrote: With the recent release and general popularity of the ShapeOko V2 desktop mini-mill, I have several folks who are trying to use LinuxCNC running on the BeagleBone as a control. If you are unfamiliar