Electronic Lead Screw Project

I've set this up in liaison with Phil Grant who is preparing photos and notes to detail his conversion and for anyone else to add there builds and for any help we can give to each other. such as sourcing parts, resolving problems etc.

It'll be great to see all come together on this, everyone is welcome

Roger

Magic. I’m on it

I have my board running for a metric lead screw. My next task is working out a way to fit a stepper neatly to my Prazimat DLZ180. For me, that is going to be the hard part and may take a long time. I would prefer to fit it at the headstock end rather than behind the bed at the tailstock end. After watching Jon Bryan on You Tube I am concerned about the size of stepper to use. I do have a NEMA23 3NM which will have to run with an overall gear ratio of 4 to 1, if I can shoe horn it in at the headstock end.

I would like to hear if anyone else with a Prazimat DLZ intends to fit this or Jon Bryan's ELS.

Paul.

I'm trying to avoid the double whammy of exorbitant shipping from the USA and the import charges. Has anyone found a source for the TI board in the UK or elsewhere in EU?

Hi Roy they are available from Mouser.co.uk**LINK**

Mickyt

I bought two boards from Mouser. Buying two pushed my purchase over the free shipping threshold and that made quite a difference to the price paid per board. It was the cheapest way I could find to buy them. They were posted to me from the USA, but arrived within a week as far as I remember. It was a few months ago.

Paul.

Ordered mine from mouser.co.uk.

Bought mine through Mouser UK with some more bits for free shipping and then tracked it from ,I think, Texas but no import charges!

Came through in less than a week.

Thanks for your replies, saves a bit of money compared with doing it yourself direct with the States.

Is anyone else planning to fit ELS to a Myford S7?

Me! But not really started yet

I found the cheapest option was fro TI themselves, it came from Germany but the postage was cheaper than Mouser or Digikey.

Hi,

I have the alias "Neophyte" down on my list for a PCB, do you already have one, I may have you down twice, once under your real name. I have sent a PM to Neophyte but it's been unread for a while.

Phil

Hi Phil,

I am not at all used to using this site yet.

Yes please, I would like one of your boards.

I will search for your PM.

Sorry for any confusion.

Paul.

Time to get the encoder, but a couple of important questions.....

1). Does it need to be incremental or absolute

2). pnp, npn,  or open collector *2 output., which I think is best as it gives A and B with not A and Not B which I think will give the 4 times count so that a nominal 1000 pulse can be increased close to the cough42 ( 4092(?). The exact pulse count is set within the setup of the software

I will be ordering from China which has a long lead time, or the cost is at least 4 times greater

edit.. syntax

Edited By Zan on 27/11/2019 13:40:59

Hi Zan, I've got a E6B2-CWZ6C from newworld-201 on Ebay, ordered on 11/11/19, arrived on 22/11/19 so good service from China. Haven't tested it yet .

Zan,

You may want to have look on GitHub Wiki component list: - lathe spesic parts

https://github.com/clough42/electronic-leadscrew/wiki/Stuff-You'll-Need

And watch episode Lathe Electronic Leadscrew Part 15

https://youtu.be/9Ou80oucrvI

" I used a 1024-pules (4096 count) encoder (Omron E6B2-CWZ6C).
Choose an encoder that runs on 5VDC with open-collector outputs. "

I bought one of these, UK delivery.

Search for this on Ebay

600P/R Photoelectric Incremental Rotary Encoder 5V-24V AB 2-Phases Shaft 6mm UK

Edited By Phil Grant on 28/11/2019 16:02:47

Edited By Phil Grant on 28/11/2019 16:03:32

.

Ahh ... So 1024 isn’t obligatory

MichaelG.

Just affects the level of accuracy and maths in the Arduino routine.

Roger

I don't think so, you can configure the pulse count in the software configuration file.