New CNC build using 80/20 extruded aluminum - Page 2 - Router Forums
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post #11 of 47 (permalink) Old 01-31-2011, 04:26 PM Thread Starter
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Nice build, where did you use the 3'x3'? Is it for the y axis.
the 3" x 3" was on the Gantry. This pic isn't very clear, but it's the one going left to right. I need to cut out a router mount, but I've already attached the z-axis and all steppers and test ran it manually with the controller.

I have plenty of other pics if you have any other questions.
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post #12 of 47 (permalink) Old 01-31-2011, 04:41 PM Thread Starter
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That little bit of 8020 ext cost $584.00 ?
Pretty expensive.
$368 actually, and that includes shipping.
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post #13 of 47 (permalink) Old 02-05-2011, 09:32 PM
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Thanks, Really nice build Im including some of your design in mine.
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post #14 of 47 (permalink) Old 02-06-2011, 08:02 PM
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Noob, if I use 3030 8020 do you think 4 inch wide steel will clear the carriages?
Thanks
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post #15 of 47 (permalink) Old 02-07-2011, 01:23 PM Thread Starter
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Thanks, Really nice build Im including some of your design in mine.
I can't really take credit for the design, the bugs were taken out by Nate and Ahren from FineLineAutomation and CNCRouterParts. I modified it a tiny bit, such as widening the Y-Axis 1/2" so that I could get a full 24" of travel in that direction. I also used 1530 (1 1/2" x 3") for the verticals of the gantry instead of 1545 ( 1 1/2" x 4 1/2") to save on cost.

The plans really aren't the easiest to use since it uses the free program "Edrawings" from Solidworks. The plans can be downloaded on the "Free plans" link on this page: FLA100-00 LINK

I redrew the whole thing in Solidworks and that helped because I am VERY familiar with it now and can take apart this machine and re-assemble it if I wanted to for whatever reason.

A dedicated person could easily finish this machine in less than a month of free time on the weekends and a few weeknights, but it's been cold and I've gotten side-tracked a few times.

I can't say I would recommend ordering from FineLineAutomation because he doesn't really have good customer service. Email response time is typically a week minimum, not good if you ask me. On the otherhand, CNCRouterparts can typically respond to your email questions within hours, a day at most.

Since I completely redrew the plans, I'm going to see if it's alright to share them in PDF format since technically they aren't FLA's drawings.
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post #16 of 47 (permalink) Old 02-07-2011, 01:44 PM Thread Starter
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Noob, if I use 3030 8020 do you think 4 inch wide steel will clear the carriages?
Thanks
I'm not sure if I understand your question completely, but the Z-Axis is 4" steel and that extrusion is 1530, the same width as the 3030 (3").

See attached screenshot.

Let me know If I misunderstood you and I'll try and clear it up a bit more.
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post #17 of 47 (permalink) Old 02-07-2011, 03:23 PM
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Do you think that instead of the 6 inch steel 4 inch would work? Would the carriages clear, seems that it would be very close. Thanks.
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post #18 of 47 (permalink) Old 02-07-2011, 04:07 PM Thread Starter
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Do you think that instead of the 6 inch steel 4 inch would work? Would the carriages clear, seems that it would be very close. Thanks.
I would stick with 6" on the gantry. The Z-Axis is cantilevered pretty good considering you'll have the weight of the router on their. Is cost the reason you want to use 4"? There is only about a $10 difference between the 2, so that really shouldn't matter a whole lot.

I bought my CRS from metalsupermarkets LINK, but another place to buy it from is onlinemetals LINK

Here is there online quote, and it didn't include shipping, but if there is one close to you, you can pick it up and save money. (see attached pic)

If you buy it, make sure it is 1018 cold rolled steel and not hot rolled because CRS has flat edges and is within a few thousandths in tolerance width-wise.
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post #19 of 47 (permalink) Old 02-07-2011, 04:39 PM
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IIf you buy it, make sure it is 1018 cold rolled steel and not hot rolled because CRS has flat edges and is within a few thousandths in tolerance width-wise.
you can also get CRS stock from Amazon...free shipping and I usually receive the order within 3 days.

Amazon.com: Cold Rolled Steel 1018 Rectangular Bar, 1/4" Thick, 6" Width, 36" Length: Industrial & Scientific

Thanks for posting the progress pics and good luck with your build!!!

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post #20 of 47 (permalink) Old 02-07-2011, 10:36 PM
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No cost isnt a factor. I was trying to run the gantry right on top of the side rails using 3030 for all parts and was trying to plan for the most clearance possible between the table and z axis without any upright extension. Thanks all.
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