That is an interesting configuration. I have the Rocketronic non-pro and am very happy with it. I mounted mine with a drive belt on the front that is off to the side in the front of the lathe. I have been very happy with my setup. Thank you for sharing your setup.

@jansverrehaugjord9934

Жыл бұрын

Thnks for the comment. I also thought doing a belt drive, for both axis actually. I also like that approach!

Great video as always. ConCAVE is hollow, like a CAVE is hollow, as opposed to conveks. Thats how i remember 😊

@jansverrehaugjord9934

Жыл бұрын

Thnks for the comment and tip 😊

@JoeMalovich

4 ай бұрын

Like cavities in your teeth.

Nice work Jan!... I am looking forward to seeing the mill in position

@jansverrehaugjord9934

Жыл бұрын

Thnks! Yes, me too :)

This system is brilliant and how I used to run one off jobs on my CNC lathe as wasn’t worth the time to write entire program. Just run each operation as needed. Wish I hadn’t just spent big money on Newall DRO for the chipmaster. Be interesting to play around with a mill for 2 axis control.

@jansverrehaugjord9934

Жыл бұрын

Thnks for the comments. I think this and similar systems are very useful, especially on lathes that have no gearbox. I also contemplated running this for the x- and y-axis on a mill, and now I can see how one might use it at least for motorizing these axis on the 3-in-1.PS! I can't see that a Newall DRO on the Chipmaster is a bad idea:) ..

Great video. You wouldn't have a schematic or list of the components used in this upgrade that you could share?

@jansverrehaugjord9934

5 ай бұрын

Thnks. The kit list from Rocketronics that I used can be found here www.rocketronics.de/shop/en/paket-servo-M.html You will also need the transmission parts and mounts, depending on how you want to drive the screws, I used direct drive hence a split coupling as well as brackets, which I made myself to suit.

Nice, I like Rocketronics Pro so much that I based my homemade ELS on it 😁 I wish they added a closed loop control that can be tied to a DRO scale.

@jansverrehaugjord9934

Жыл бұрын

Hmm.. interesting! Any videos or other material (pics etc.) on this? Thnks for commenting!

@HM-Projects

Жыл бұрын

@@jansverrehaugjord9934 I think my previous comment disappeared. See the Electronic Leadscrew playlist on my channel.

Sorry if you explained it elsewhere but did you put ballscrewas on the cross slide?

@jansverrehaugjord9934

Жыл бұрын

No ballscrews. .at least not yet. I used an ordinary trapezoidal screw. I did add a nut section though.. same on the long axis.

Great job! I have same machine. Now working on installation ballscrews and closed loop motors saving handwheels for manual operation. Today received ELS 4 Pro 😊. Can you tell me you settings for encoder? Do you know gear ratio - spingle to gear which rotate your encoder in I and II selector positions? Will be very appreciate your help. Thank you.

@jansverrehaugjord9934

Жыл бұрын

Thnks! I didn't bother with ballscrews myself, but this sounds like a very good setup. As a matter of fact, I have used a couple of gears from the output shaft for the gear train, which in pos 2 (if I remember correctly) gives me 1:1. That is why I have "buried" the encoder where it sits today. However, I am in process of redoing the motor/drive system, switching out the regular V-pulleys/belts for a multirib system. This gives a better "wrap-around" effect, especially on smaller pulleys, ie. promises better transmission efficiency and quieter running. This means I have dismantled the spindle mounted clutch system thereby giving me an opportunity to relocate the encoder directly to the spindle, which I think is better. The settings are somewhat individual when it comes to acceleration, coarse/fine feeds and axis movement rapid/slow speeds, but in general I followed the instruction manual and recommendations as well as of course adhering the the motor driver settings described

@sergeimorozov9093

Жыл бұрын

Thank you! I am on the same boat. Thinking to replace pulleys. I am already running a treadmill motor on lathe powered by Vary Speed r400 controller. Thinking to leave just one set of pulleys. The 1:2 ratio should be enough for variable speed of treadmill motor and treading with ELS 4.

@jansverrehaugjord9934

Жыл бұрын

@@sergeimorozov9093 I was also thinking of using a treadmill motor (I have 2 available), but ended up with a (traditional) 3 ph induction motor driven from a VFD.PS! Bt now I have tried several different setups, motors and pulley arrangements.. amongst them a one pulley system from a 6pole ie. 900'ish rpm induction motor, which I thought gave a very smooth and quiet running. However, not entirely satisfied that this motor is adequate at 550W, I am now in process of switching to a larger 750W 4 pole motor, ie. 1425 rpm, which neccesitates a double reduction again.. If this is to be the system I go with, I wll do away with the cumbersome speed change system as original, instead using a set of multirb pulleys from a Myford Mystro, which uses 5 step pulleys. The motor to the idler pulley will then be a fixed ratio as it will be sufficient with only swopping the belt on this 5-step pulley system to change speeds. Will also make a simple belt tensioning arrangements a la on cars engines, ie. just undoing one bolt, sop belt position and tighten again. Still experimenting :) and at the moment waiting for some multirib belts.

I've considered getting the Pro 4. Unfortunately, the unit only supports 1 arbitrary unit of length and there's no option to switch to inches (IIRC). Also, would a full 2-axis CNC setup would be better for similar money? The ELS probably feels like operating a manual lathe, which is good for a hobby/toolroom setting. A CNC might hinder manual use of lathe but it gives you better repeat performance. The turn-key nature of the control is appealing. I've also looked at Acorn and Masso. They seem simpler than linux CNC but may cost more.

@jansverrehaugjord9934

Жыл бұрын

Hmm.. I would ask Rocketronics themselves about when/if they have a unit capable of imperial readout/use. They have been extremely responsive to other wishes and the software is updated along, now in V13.. should not be surprising if there will be a V14 soon.. My first thoughts when looking at an ELS system was that I wanted a means to do away with the change gears. Then of course going up from a simple z-axis control to a more sophisticated system is natural and somewhere along the road also to a 2ch system like the one offered by Rocketronics. Not sure about 1 vs 2 ch for a hobby lathe either. The most benefit from an ELS is already "taken" when one has motorized the Z-axis, but there are also significant advantages with a 2axis system. Pro vs Basic.. tja? I think the large color screen is very handy in itself, but the additional input/outputs and control of rpm/motor are nice. As you indicate, an ELS system retains the manual use if the lathe, which I consider crucial. I also think that this 2ch ELS is better for me vs a CNC system.. at least until one have more experience and really needs more "programs"

Any more updates on the mill modification Jan?..

@jansverrehaugjord9934

6 ай бұрын

Not yet.. I have worked on Myfords lately (still am..), but hope to get back on track after Xmas. Hobby time has also been somewhat less last year or so (because of work and other factors)