Member postings for Franco Convertini

Thank you

Hello, I bought a used M-DRO on ebay. Only the crosslide part.
I need help. Do any of you have the installation measurements MyFord Super7? Thank you.

Edited By Franco Convertini on 03/04/2023 10:01:06

Edited By Franco Convertini on 03/04/2023 10:01:26

Thanks for advice. They have been very helpful. I saw that Roderick has a good system with that nut.

I use the ER25 MT2 for some work on the S7 lathe
When I have to remove it from the chuck it doesn't come out and I have to hammer on the rear tie rod to get it out.
This doesn't seem like a good thing to me and I would like to find an alternative system.
What system do you use to make the cone come off the spindle?

Thank you

While waiting for someone better than me to answer, I'm doing research to better understand how the signals travel from the linear scale to the digital player. I think this can be useful to all users who want to reduce the encumbrance of the linear stairs mounted on the cross slide
From the Chinese sites I have drawn the connection diagrams of the optical and magnetic scales. So far it seems that the pins are compatible.

Vevor linear scale:

Edited By Franco Convertini on 06/05/2022 11:40:16

Edited By Franco Convertini on 06/05/2022 11:41:25

On my s7 I have installed a Vevor DRO with bulky linear scales.
On the cross slide I would like to replace it with a magnetic linear scale like that of mDRO.
I wonder if any of you have managed to install a magnetic linear ladder on a Chinese DRO.

Hi John, I have already replied to you on the MP.
I realize that for this project it is easier to have a lathe where you change the wheels. Is it possible that the box of my lathe does not have a 1: 1 ratio?

Edited By Franco Convertini on 06/02/2022 19:35:06

Hello John,
I was blown away when I read your message. This was exactly what I was looking for. With the engine always running, disengage the lead screw at the end of the thread, return the carriage quickly backwards and engage the lead screw again. Two things remain to be clarified:
1 the number of teeth that the thread dial indicator gear has and how many notches it has on the dial; Also what module does it have for milling teeth.
2 I have the Norton box on the lathe; how should i adjust it?

Regards, Franco

Edited By Franco Convertini on 06/02/2022 19:11:31

Interesting an Ainjest unit. Are there any photos?
Any video showing how it works on Myford?

Edited By Franco Convertini on 06/02/2022 11:21:21

Hi Martin,
is a good suggestion.
I have to decide as soon as possible to buy a good DRO. I did a search but the ones I've seen cost a lot.

Franco

When I make fine threads and go back and forth with the engine it goes away so long that I grow a beard. 😉

Very interesting John, where can I see? is there a link to this?

Edited By Franco Convertini on 05/02/2022 22:27:42

What you say is true but it is cool to be able to unhook the screw and resume the thread. Here in Italy someone has managed to make a metric dial on a Ceriani lathe https://youtu.be/kk5oWnAkVoI.
I thought some Myfordists had created something like this.
Thank you all for the time you have dedicated to me.
Greetings, Franco

I think my lathe is metric because it has a cross slide and a top slide with a 2mm pitch but the lead screw has a pitch of 3.15 mm

Edited By Franco Convertini on 05/02/2022 19:30:16

On my super 7 when I do imperial threads the Four Index Threads Indicator works well, I can unhook the carriage from the lead srew and start re-reading again.
This system does not work for metric threads. For each metric thread I waste a lot of time because for each pass I have to stop the lathe motor, make it turn backwards until the thread begins and start a new pass.
I wanted to know if there is a dial indicator for metric threads?

Edited By Franco Convertini on 05/02/2022 17:49:11

Thanks for the answers, now I'm calmer. Before, I was afraid that something might break.
Here in Italy, in the area where I live, it is difficult to find spare parts.
Greetings, Franco

Yes, it's an S7, and that's the locking mechanism for direct drive.
Do you think it's okay?

Yes, it's an S7, and that's the locking mechanism for direct drive.
Do you think it's okay?

Is there anyone who can help me reduce the play of these gears on the head shaft? Thank you in advance for the time you will want to dedicate to me

VIdeo

Edited By Franco Convertini on 02/01/2022 17:43:19

Merry Christmas & Happy New Year to all