If you purchase DRO glass scales, I recommend finding ones that have an index. I believe these may have an index every so often (every 50mm??) With this feature, you could eliminate?the home switch or at least avoid any inaccuracies between your home switch and linear scales. I didn't realize this was available when I bought scales. Any future purchases will have this feature. (Trying to justify replacing my lathe cross slide scale with a 1u with index.).
On Wed, Jul 21, 2021 at 8:33 PM mike allen <
animal@...> wrote:
??? ??? you can pick up a 3 axis DRO with glass scales for under
$300.00? everything ya need in a few boxes off Amazon or even the
Bay
??? ??? animal
On 7/21/2021 2:19 PM, Glenn N wrote:
I joined the group to see if it could generate some interest in me
doing CNC and CAD. I am a retired ET with more than 36 years of
electronics background. I put together an all manual machine shop
when I retired 15 years ago. I purposely avoided anything to do
with electronics as I am burned out on it. I even built the
shumatech DRO350...what a shitshow that turned out to be. Poor
design with lots of noise issues. Even down to getting the
polarity wrong so you have to use batteries with the
scales...Frustrations I don't need. So, I bought the DRO 550 as it
was supposed to be excellent and a huge improvement...then people
started using them and all the glitches started falling out.
Fortunately I hadn't bought glass scales yet and all the parts are
still in the box.
So I will quit lurking and go elsewhere.
Glenn
