What are these DRO’s?

This topic has 13 replies, 10 voices, and was last updated 20 January 2017 at 13:10 by Bikepete.

Viewing 14 posts - 1 through 14 (of 14 total)

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19 January 2017 at 22:41 #25022
Chris Denton
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@chrisdenton53037
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19 January 2017 at 22:41 #278947
Chris Denton
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@chrisdenton53037
Hi, I have these DRO's on my Aciera milling machine.

The Z axis now stays at zero and doesn't change. It's possible fluid dripped onto the reset switch and into the unit, I've tested the switch and it still works fine. The rest of the unit seems sealed.

Does anyone know the make of these units, or where they can be repaired?

Thanks,
19 January 2017 at 22:51 #278949
Ady1
Participant
@ady1
You'll probably need to post a picture chris, or a link to a picture
20 January 2017 at 06:12 #278970
Chris Denton
Participant
@chrisdenton53037
[img]https://www.imageupload.co.uk/images/2017/01/20/image.jpg[/img]
[img]https://www.imageupload.co.uk/images/2017/01/20/image32be6.jpg[/img]
[img]https://www.imageupload.co.uk/images/2017/01/20/image278e6.jpg[/img]

Edited By Chris Denton on 20/01/2017 06:29:34

Edited By Chris Denton on 20/01/2017 06:29:46
20 January 2017 at 06:33 #278974
Chris Denton
Participant
@chrisdenton53037
Thanks, forgot pictures!
20 January 2017 at 08:04 #278982
Michael Gilligan
Participant
@michaelgilligan61133
**LINK**

https://www.imageupload.co.uk/images/2017/01/20/image.jpg

https://www.imageupload.co.uk/images/2017/01/20/image32be6.jpg

https://www.imageupload.co.uk/images/2017/01/20/image278e6.jpg

Edited By Michael Gilligan on 20/01/2017 08:06:45

Edited By Michael Gilligan on 20/01/2017 08:10:55

Edited By Michael Gilligan on 20/01/2017 08:12:34
20 January 2017 at 09:04 #278994
Ian S C
Participant
@iansc
Chris, try opening an album for your self, then you can transfer direct to wichever thread you want.

Ian S C
20 January 2017 at 09:28 #279001
Neil Wyatt
Moderator
@neilwyatt
<RANT MODE>

What is it with engineering types? They never RTFM!
- Click: FORUMS
- List appears ALL FORUM TOPICS
- From the first section choose the first topic WEBSITE FAQs
- From the list of threads choose the first one: How to post pictures and create albums
The obvious place to look is in the FAQs and I couldn't do more than place the thread right at the top of the list

I think I will post a link to the FAQs every time I welcome a new member.

</RANT MODE>
20 January 2017 at 10:01 #279008
Michael Gilligan
Participant
@michaelgilligan61133
Posted by Neil Wyatt on 20/01/2017 09:28:39:

I think I will post a link to the FAQs every time I welcome a new member.

.

What a good idea, Neil !!

Perhaps you should make it a prerequisite of membership, that people confirm that they have 'read and understood' the basics.

… Yes, I know … it would only be a meaningless tick in a box.

MichaelG.
20 January 2017 at 11:28 #279035
John Stevenson 1
Participant
@johnstevenson1
Waste of time.

Look to upgrading instead of spending money on what is basically a turns counter.

These readouts do not take into account any backlash in the screw so they are only as accurate as a worn screw.
20 January 2017 at 12:04 #279043
mechman48
Participant
@mechman48
Posted by John Stevenson on 20/01/2017 11:28:19:

Waste of time.

Look to upgrading instead of spending money on what is basically a turns counter.

These readouts do not take into account any backlash in the screw so they are only as accurate as a worn screw.

+1 Concur with JS, look at getting something like…

http://www.arceurotrade.co.uk/Catalogue/Measurement/Digital-Readouts-with-Dedicated-Remote-Display

I have this type fitted to my mill.

George.

Edited By mechman48 on 20/01/2017 12:07:32
20 January 2017 at 12:19 #279046
Nicholas Farr
Participant
@nicholasfarr14254
Hi, agree with JS & George. **LINK**.

Regards Nick
20 January 2017 at 13:01 #279051
daveb
Participant
@daveb17630
They do not directly read the slide position so only as accurate as the feed screws. Some feed screws were originally very accurate but they deteriorate with age. Provided that you allow for backlash, they may well be accurate enough for you, at least you don't have to count the turns. Before linear scale DROs, all work was done with the feed screw micrometer dials.

To answer the question asked, the device is a counter so any reasonably competent electronics bod should be able to sort it out, they are however a rare breed now.
20 January 2017 at 13:10 #279053
Bikepete
Participant
@bikepete
Goodwin Technology do DRO repairs in the UK, including kit of that vintage: see here.
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