New Plasma build in OZ

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16 Jul 2021 09:51 #215013 by 34by151
Replied by 34by151 on topic New Plasma build in OZ
Waiting on prices from TEA, Industrial dynamics and statewide

Sunstate came in at
The 20 mm Linear rail, x 37000mm long $986.00 +gst each
Linear Blocks to suit Rail, $136.00 +gst each
The following user(s) said Thank You: thefabricator03

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16 Jul 2021 09:55 #215015 by 34by151
Replied by 34by151 on topic New Plasma build in OZ
Ive just really been working on the table and Y rails setup.

The Gantry and Riser plate is just there to tie it together for now.
Once I put all the hardware into the table ill start on the drive for the Y and then getting the X znd Z details in.

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19 Jul 2021 20:47 #215337 by rodw
Replied by rodw on topic New Plasma build in OZ

Hat you cant see in the pic is the mounting plate. Im guessingyour looking at the adjuster bolt that lowers the wheel. Thes normall sit on the pad and the wheel is only down to move it.

 

I tried hard to get feet and casters to coexist but was never happy the arrangement would be rigid. So the casters come off to fit the feet.
So we welded a M30 x 2mm nut on the inside of the bottom end cap for the leg and used M30 x 20 threaded rod for the adjustable leg. The base is 100mm dia 10mm thick lasercut steel. I turned the threaded rod down for 5mm so it was a press fit into the base and plug welded it from the bottom. a M30 half nut as a lock nut and its very solid.

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20 Jul 2021 01:09 #215357 by 34by151
Replied by 34by151 on topic New Plasma build in OZ
I will go with the leveling casters and if they work out great otherwise it's not hard to remove them and put in feet.

Probllay have some time to do some design work today.
Need to make some decisions on the x axis stepper mount.

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20 Jul 2021 06:41 #215385 by 34by151
Replied by 34by151 on topic New Plasma build in OZ
Been doing some work on the ganrty design.

Opinions on mounting the stepper locations for the X and Y
Im looking at mounting the steppers at the end of the slides.
Seems to make sense for the Y lowering the gantry weight.
Not sure if it worth doing the same on the X axis.

What are everyones thoughts?

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23 Jul 2021 09:04 #215655 by 34by151
Replied by 34by151 on topic New Plasma build in OZ
Statewide Prices

4000mm rails $700 each
Carrages $85.50 each
Scraper kit per carrage $22.50

prices ex tax

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23 Jul 2021 09:10 #215656 by tommylight
Replied by tommylight on topic New Plasma build in OZ
Steppers should be mounted as close to the rails/carriages as possible, keeps the mass near refference point, the overall result is less vibration.

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23 Jul 2021 10:55 #215669 by 34by151
Replied by 34by151 on topic New Plasma build in OZ
Thnaks for that.

So mounting the Y stepers on the carrage using a single belt fixed at both ends is better then a looped belt with the stepper on one end.

In other words the higher overall weight of the garnty is less of a concern than the vibration in the belt.

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23 Jul 2021 11:25 #215673 by tommylight
Replied by tommylight on topic New Plasma build in OZ


So mounting the Y stepers on the carrage using a single belt fixed at both ends is better then a looped belt with the stepper on one end.

In other words the higher overall weight of the garnty is less of a concern than the vibration in the belt.

Always and yes.
Using reduction would be nice, direct driving the belt is also usable with microstepping drives.

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23 Jul 2021 12:04 #215679 by rodw
Replied by rodw on topic New Plasma build in OZ
I just checked Industrial Dynamics, they quoted me $531.95 for 3 m of HGR25 in June

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