Author Topic: Sizing Dro Scales on Sieg sx2 Plus  (Read 226 times)

Offline Buell

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Sizing Dro Scales on Sieg sx2 Plus
« on: October 12, 2018, 04:57:38 PM »
Im just about to order a Chinese set of  Dro scales and Display for a Sieg SX2 Plus its basically the sx1 with a larger table I think.

Anyway have measured up and wanted a 2nd opinion if i have gone wrong here in my sizing or idea.

The x travel is 280mm and the Bed size is left to right 400mm
The Y Travel is 150mm and the carriage size is front to back 220mm
The z Travel or height of complete column is 500mm.

Now the Scales are in 50mm increments...so in theory if you want a travel of 280mm you would choose a 300mm ? which then the Physical length is 300 + 150mm or thereabouts for mechanism. which in theory means its going to be longer than the Bed..

Have i Missed something obvious ?

Many thanks in advance also anyone bought from Aliexpress, bangood, Ebay etc with good results , and whats the deal with the Shipping duty thing does that kick in or do they generally say its worth a dollar to get out of it ?
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Offline philf

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Re: Sizing Dro Scales on Sieg sx2 Plus
« Reply #1 on: October 12, 2018, 05:35:12 PM »
Buell,

Sino do 16 x 16 section scales and do a 280 mm scale. The overall length is 383mm. The range is called KA200.

I bought the system for my lathe from the UK so can't comment on buying from China.

Cheers.

Phil.
Phil Fern
Location: Marple, Cheshire

Offline chipenter

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Re: Sizing Dro Scales on Sieg sx2 Plus
« Reply #2 on: October 13, 2018, 02:03:37 AM »
You need to add the size of the read head to the length plus clearance .
Jeff

Offline Buell

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Re: Sizing Dro Scales on Sieg sx2 Plus
« Reply #3 on: October 13, 2018, 05:13:04 AM »
Thats what i thought so it will stick out 10 to 15mm at either end of the bed. So when i have seen most scales they all seem to be either shorter or the same length...thus they wouldn't have the Full travel of the machine ?
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Offline WeldingRod

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Re: Sizing Dro Scales on Sieg sx2 Plus
« Reply #4 on: October 13, 2018, 01:58:43 PM »
I would buy the long scales about the length of the table; makes mounting easier.
It they are the Aluminum/circuit board capacitive style, then they are easy to cut.

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Online mc

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Re: Sizing Dro Scales on Sieg sx2 Plus
« Reply #5 on: October 13, 2018, 04:27:35 PM »
150mm for the reader head length seems excessive.

What scales are you looking at?

There are various options depending on how much space you have available.

Offline chipenter

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Re: Sizing Dro Scales on Sieg sx2 Plus
« Reply #6 on: October 14, 2018, 01:53:55 AM »
I made my mounts the same size as the table on my X1 that has the same table .
Jeff

Offline Buell

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Re: Sizing Dro Scales on Sieg sx2 Plus
« Reply #7 on: October 14, 2018, 10:57:15 AM »
My plan was to use the Glass scales. approx 170.00 all in 3 scales and a Dro display gives you all the whistles and bells...circle diameter with holes set ..points to go back to and many other. I guessed if i was to spend 100 on cheap stuff i may as well go large and give my self a fighting chance of doing some of the other things i may find myself wanting to do in the Future. They have i guessed a small level of glass in them so Not very adaptable ! but yes i think i will go for as near as the same length as each axis..Thought if i go for the 500mm for z Then if I ever take it off and get a bigger machine may have the chance to use in one other location !
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Online mc

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Re: Sizing Dro Scales on Sieg sx2 Plus
« Reply #9 on: October 14, 2018, 01:52:41 PM »
Those are the more common size of optical encoders, but you can also get a slimmer version, which can be handy especially on the Y-axis where mounting space can be at a premium.

I'll send you a PM with some details.

Offline chipenter

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Re: Sizing Dro Scales on Sieg sx2 Plus
« Reply #10 on: October 14, 2018, 02:44:35 PM »
Does this help ?
Jeff