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Sieg SX3 and Machine-DRO 3-Axis Kit

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Mike Donnerstag09/04/2020 21:43:38
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142 forum posts
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I have a Sieg SX3 milling machine and have just purchased a 3-axis DRO kit from Machine-DRO. Does anyone have experience of fitting this kit to the SX3? I have laid out all the parts of the kit on my workbench and more I'm a little befuzzled (technical term).

I noticed a page on the internet where someone had mounted the Z-axis scale on the inside of the column, though I couldn't find any detailed photos. Has anyone else done this?

The readout came with just a solid horizontal mounting bar and two relatively big (I think M8) bolts. I'm not sure what to mount this to, as the SX3 column 'cover' is just fabricated from relatively thin sheet steel. How have people mounted the DRO display to the machine?

Please help! I don't want to drill and tap holes in the wrong place!!

Many thanks,

Mike

Steviegtr09/04/2020 21:54:23
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1153 forum posts
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Have you had a look on youtube. Lots of dro conversions on there. If not your model at least get some idea's.

Steve.

Steviegtr09/04/2020 23:32:52
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1153 forum posts
94 photos

Try this one. It is a Grizzly G0704 but similar points of fixing.

**LINK**

Steve.

Martin Mcgiff10/04/2020 05:40:48
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19 photos

I've just fitted one last week as im now onto the cross slide.

You need to move the black controller back section out 30mm to allow for the scale to fit inside, also if you clip off 10mm each side of the black controller then the head can lift 60mm higher (bonus )

I will sort some pictures later today

Martin

Ron Laden10/04/2020 06:26:44
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1859 forum posts
342 photos

Google fitting DRO to sx3 and you will find quite a lot of info.

JasonB10/04/2020 07:04:44
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On my fairly similar X3 I fixed the bottom bracket to the base of the column, make sure you raise the end of the scale enough so the Y one can pass under it. These are M-DRO scales and covers.

Then at the other end fixed down into the top of the column using one of the existing cover screws

Will take a photo of how the read head is fixed to the mill's head later but yours may need a slightly different fixing due to the swivel head.

Have you got  alink for the SX3 kit as I can't see one listed on their site.

 

Edited By JasonB on 10/04/2020 07:49:08

Mike Donnerstag10/04/2020 08:17:00
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142 forum posts
30 photos

Thanks chaps. I think I'll fit the X and Y axes first, as they are more straightforward. I have several more questions, which I should probably call Machine-DRO about, though I'd like to get the DRO fitted over the Easter weekend, hence why I'm asking here. I also intend to do more research on the internet to see if I can find answers to these questions, though if anyone knows, it could save me a lot of time and I would be very grateful.

Q: On each magnetic scale is printed "INC 2mm -->" Any idea what this means?

Q: Has anyone fitted the Z axis INSIDE the column? It seems like an elegant way to conceal the scale, though I'm not sure whether there would be any dificulties.

Q: The M-DRO 'Encoder Install Guide' says nothing about actually cutting the scales to length, apart from how to measure. Any tips here?

Q: The package came with many powder-coated brackets that aren't in the photograph on the website. Are these additional brackets for the Z axis?

Q: How have people attached the display to the machine. I notice on the Axminster version that the arm is fitted to a long rod or bolt, not included in the kit. Again, if anyone has photos I would be very grateful.

Once again, many thanks,

Mike

Mike Donnerstag10/04/2020 10:44:13
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142 forum posts
30 photos

JasonB: Many thanks for your photos. The kit I was recommended by Machine-DRO to buy is a universal mounting kit with magnetic scales. I went for the 3 axis kit with the LCD DRO:

https://www.machine-dro.co.uk/easson-lcd-3-axis-dro-package-5955

Thanks,

Mike

Mike Donnerstag13/04/2020 15:18:48
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142 forum posts
30 photos

The 'Universal Fitting Kit' is proving to be universally frustrating! Has anyone used the fitting kit or has everyone made up their own brackets for fitting the DRO scales and head? If anyone has actually used the fitting kit, would you be able to post some photos?

Edited By Mike Donnerstag on 13/04/2020 15:19:33

Martin Mcgiff13/04/2020 15:39:53
5 forum posts
19 photos

93640383_3159703014049492_8846117099009998848_n.jpg

I made my own as was a better instalation as i also fitted the z axis in the column and moved the controller box back 30mm 92844905_532307884138885_3790375047504330752_n (1).jpg

Edited By Martin Mcgiff on 13/04/2020 15:40:23

Mike Donnerstag13/04/2020 15:45:38
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142 forum posts
30 photos

Hi Martin - many thanks for the photos. By 'controller box' do you mean the display? Do you have any other photos? Are these the optical encoders?

Martin Mcgiff13/04/2020 15:55:24
5 forum posts
19 photos

The machine controller i mean is the big black box on the back of the machine, i moved it by 30mm to allow the scale to be fitted inside, i also modified it to allow the head to travel 50mm higher, i fitted the DRO arm to the top of the controller box on the right hand side, it is ok and at the right height to read it.

i have painted the floor today but will get some pictures tomorrow

Regards

Martin

Mike Donnerstag13/04/2020 16:01:56
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142 forum posts
30 photos

That's great - many thanks. It sounds as if you've done some interesting modifications. Looking forward to the photos.

Cheers,

Mike

Ron Laden13/04/2020 16:14:40
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1859 forum posts
342 photos

Hi Mike,

I cant speak for the SX3 but I fitted my Sieg SX2P mill with a 3 axis set (from ARC) and they came with a variety of brackets and fixings, some of which I modified and used but also made some of my own. I think that is the norm when you get a universal kit, probably different when you have a set made for a specific make and model of machine.

Unless you can find someone or a write up that covers the detail and parts used in fitting a DRO set to the SX3 you may find that you are on your own. Actually its not that difficult to fit a set just takes a bit of sizing up, positioning and either using the supplied fittings or modifying them and/or making your own.

Ron

Edited By Ron Laden on 13/04/2020 16:18:20

P.S. There you go Martin will probably have all the info you need. 

Edited By Ron Laden on 13/04/2020 16:19:40

Edited By Ron Laden on 13/04/2020 16:20:12

Mike Donnerstag13/04/2020 17:59:42
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142 forum posts
30 photos

Hi Ron,

Thanks for that information. I think I'm coming to the same conclusion - the 'fit-everything' kit actually fits nothing well, and needs extensive modification to achieve a usable result, albeit ugly. For a much neater result, it seems that making all of the brackets from scratch is the only way, and probably the way I'll go for each axis.

Mike

Martin Mcgiff14/04/2020 12:11:07
5 forum posts
19 photos

Just on second coat of the garage floor but some quick pictures this morning of position ot the DRO arm, inside the rear column 2 cross beams and a bracket (all inside the black control panel) i moved back the screws on top 30mm to allow for this and i also removed 10mm each side at the top to allow the head to rise 50mm higher !!! 93234291_3733922976680341_2806761531662925824_n.jpgArm top right

93156038_248617186182769_6193841499419967488_n.jpgtop of head screws moved 30mm back93001908_237492550789166_2834978938516668416_n.jpgTo allow Z scale inside 93566013_504843610395967_2313160959176212480_n.jpg93430323_851834245328550_5032960308017102848_n.jpg93303573_2734102963476369_4176346952188821504_n.jpg

Mike Donnerstag14/04/2020 16:13:58
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142 forum posts
30 photos

Interesting! Many thanks Martin.

Martin Mcgiff15/04/2020 16:31:58
5 forum posts
19 photos

I have Moved the milling machine back into its final position, picture showing the DRO arm position92722314_2444467582531052_937057629425893376_n.jpg

Mike Donnerstag27/04/2020 12:58:29
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142 forum posts
30 photos

Many thanks to everyone who commented on this post. I decided to install the Z-axis inside the column, as far back as possible to ensure the cable does not foul the Z-axis leadscrew. Photos follow:

complete installation.jpg

dro display.jpg

x-axis.jpg

y-axis.jpg

z-axis at bottom of travel.jpg

z-axis at top of travel.jpg

z-axis cable.jpg

I'd be very interested if anyone has any comments.

Mike

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