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As for myself I can cover upto $1,000.00. Using the ELS on the mill would be interesting and a savings as I could use it on both of my lathes and the mill. Ralph

Hi Richard. Didn't mean to come off sounding snarky. The 90 pounds is about $150 Cdn. The Cdn dollar is pretty crappy against the US$ right now so my ELS tends to be more expensive anyway. Overall the

Hi John, I only asked as you raised costs in an earlier mail. Whether we like it or not it is one of the factors considered when choosing a system. Richard

Hi Richard, My ELS is way more expensive than that. But there's a historical reason for it. Not made in China is the biggest one. Get PC boards made locally (if even possible anymore) for each of the

I see that my cost shows as ?90 which may not display correctly as GB Pounds 90. Just to complete the discussion what price is your ELS these days? You also have discussed using Mach3 with one pulse

The Boxford mill is quite small about 200mm X and 150mm Y IIRC. Reduction was about 2:1 Motors will run at 3000rpm not sure of the torque at that speed. I will get some firmer numbers in a few days.

Mine are all project #42 because that's the answer to Life, the Universe and Everything. At least according to Hitchhiker's Guide to the Galaxy. John Sent: December-11-19 10:53 AM To:

I have a windows XP computer that I bought when I was looking at Mach 3 & 4. Plus I have a Windows 10 laptop and of course lots of Raspberry PIs. As you know I have been "looking" at doing something

Hi Ralph, No matter which way you look at it you will need to mount the motors, run cables, install a power supply or two. I'd even add a BoB of some sort to simplify the cables and wiring. At this

Hi Richard, All good points. I'd rather put my money into a higher quality spindle drive that doesn't slow down with deep cuts. Surface finish by maintaining a constant SFM is more important to me.

Tracking the spindle backwards and forwards is not a feature that interests me, however tracking the spindle at varying speeds does. The problem that I have had with one pulse per rev monitoring is

Thanks Richard and John! I want something that just works. I am 73 years old and don't want to spend years learning how to turn a taper or cut a thread. People have mentioned some shortcomings of

Thanks for the endorsement Richard. But I know that there are features from the RELS that don't exist on mine. I'd really like to learn more about what is different. I know that I can't stand pressing

Ralph, I suggest you forget the RELS but go with John D's system. the single pulse is easy to handle. Richard

I totally agree with Rex. You do not want any oscillation between spindle and encoder. When I started my ELS project the one thing I could not do was find an encoder with a bore capable of fitting

Thanks John, I still have your ELS in mind. Here is a very very rough starting idea for mounting the encoder and the gear: [image: 2019-12-10_16-56-46.jpg] Ralph wrote:

Ralph, here's a scenario. The lead screw is advancing the tool toward the work. The drive gear is pulling the driven (encoder) gear. The tool engages the work and the spindle slows. The drive gear

Hi Ralph, From what I can see from reading the Arduino code it looks like it needs at least the same number of pulses from the spindle as it needs to send to the stepper motor. The code I was looking

Thanks for the replies!! Rex, yes I wondered about slop in the gear. I cannot see where any loading to the encoder would come from, of course I have not shown how I was going to mount the encoder and

A mill can be viewed as a subtractive 3D printer. The tasks and automation are very similar.?