40182Re: [hobbicast] [off?] CNC Machine Running
- Feb 1, 2010Jeshua, nice work! I've been working on a Gingery Lathe for about 4
months w/o nearly the progress to show for it :o).
Q: What is the 3D visualization/CAD software that you show in the first
part of your demo?
Q: You mention in the thread that you used pycam. Could you elaborate on
your CAD tool chain...and how well it's working for you? I've been using
QCad...but it's a 2D only option...though somehow they have an
additional GCode module, too.
Q: You mention using the Roton ballscrews/nuts for your z axis... have
you needed a brake? I ask b/c the Roton site claims that the translation
of force to rotation is so efficient that their devices cannot be
counted on to self-brake.
Q: What linear motion system are you using, and what are it's
performance characteristics (flatness, deflection, etc.)?
My plan is to build the Gingery series and then start on a CNC...
probably very similar to yours. At my current rate, I should be starting
that project in about 2-5 years :o).
On 1/31/10 7:25 PM, Jeshua Lacock wrote:
> On Jan 31, 2010, at 7:28 PM, Ron Thompson wrote:
>> Do you have dual belts on the x axis? I used two and two steppers
>> together, no racking of the y axis.
> No - I have two belts on the Y, but only one belt on the X.
> Interesting thought - might be worth trying.
>> I use mach3 to drive the steppers, so slaving was easy.
> Cool. For my dual belts on the Y, I am using one servo (2 horsepower
> geared down 2:1!) connected to a drive shaft that drives both belts.
> Makes for a cost effective solution - one servo, one controller, one
> power supply....
> Jeshua Lacock, Owner
> phone: 208.462.4171
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