Rather Large ShapeOko

discussion of design changes / improvements / suggestions

Rather Large ShapeOko

Postby Improbable Construct » Sun Aug 12, 2012 8:09 pm

I just got done expanding the X axis on my ShapeOko. It is now X=1000mm Y=1200. It has a usable cutting area of 800x1000mm. I haven't had a chance to cut anything with it yet. I am still thinking about how I want to do hold downs.
Anyway here are some pictures.
ShapeOko 063 (Large).jpg
ShapeOko 063 (Large).jpg (127.33 KiB) Viewed 3814 times

ShapeOko 064 (Large).jpg
ShapeOko 064 (Large).jpg (92.07 KiB) Viewed 3814 times

ShapeOko 065 (Large).jpg
ShapeOko 065 (Large).jpg (103.89 KiB) Viewed 3814 times
Shapeoko #Classified some of the V-wheels and bolts may be original parts.
Shapeoko 1 # ???? Stainless plates, still in the box.
Shapeoko 2 # 3926 not stock

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Re: Rather Large ShapeOko

Postby baz » Sun Aug 12, 2012 10:20 pm

That's one big machine! It will be interesting to see how it cuts, do you think the resolution will me the same? Also is there any physical yaw in the gantry when the steppers aren't engaged? (when the steppers have power they should fix it solid)

Regards

Baz
ShapeOko #676, eShapeOko #11, Hardened MakerSlide, OpenRail, Steel v's, Misumi Extrusion, Kress 800
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Re: Rather Large ShapeOko

Postby levlandau2 » Mon Aug 13, 2012 3:03 am

Wow, that is great, and it is the upgrade I am trying to implement myself.

I am very concerned about sag in the y-axis, as the weight of the gantry and x-axis start bending the makerslide...? Any thoughts on this? Would it be worth it to firm up the makerslide with extra aluminum extrusions?
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Re: Rather Large ShapeOko

Postby Improbable Construct » Mon Aug 13, 2012 3:23 am

I haven't measured the sag, yet but I will. I am running dual makerslide on the X axis so hopefully that will help. The only thing that is stock on my machine is the z axis. (We will see how long that lasts... I have my eye on an acme screw to replace the threaded rod) I hope to figure out my hold down method and surface my spoil board in the next day or two, if my work schedule allows.
Shapeoko #Classified some of the V-wheels and bolts may be original parts.
Shapeoko 1 # ???? Stainless plates, still in the box.
Shapeoko 2 # 3926 not stock

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Re: Rather Large ShapeOko

Postby BrianH » Mon Aug 13, 2012 4:25 am

awesome! Do have a few pics of the x/z plates and how they are mounted? I want add the dual x and just wondering if there was anything I'm missing assembly wise.

-Brian
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Re: Rather Large ShapeOko

Postby Digitalmagic » Mon Aug 13, 2012 7:26 am

How are the 2 gantry makerslides attached together?
Eager to see your scaled up "Hello World!" !
s/o #650 - Wish my digits are ... magic!
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Re: Rather Large ShapeOko

Postby northbear » Mon Aug 13, 2012 1:09 pm

Wow! Looks great!
How is your spoil board attached? (or is it just setting there for now?)
My buildlog is here
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Re: Rather Large ShapeOko

Postby Improbable Construct » Mon Aug 13, 2012 2:29 pm

BrianH wrote:awesome! Do have a few pics of the x/z plates and how they are mounted? I want add the dual x and just wondering if there was anything I'm missing assembly wise.
-Brian

Start here and if you need more info or pictures let me know.
http://www.shapeoko.com/forum/viewtopic.php?f=11&t=302

Digitalmagic wrote:How are the 2 gantry makerslides attached together?
Eager to see your scaled up "Hello World!" !


They actually are not attached together. They are only attached on the ends. I bought some plates to attach them to each other but the wheels hit them. I may still have to do something about that though.

northbear wrote:Wow! Looks great!
How is your spoil board attached? (or is it just setting there for now?)


The spoil board is just sitting there right now but I am going to screw it down from the bottom.
Shapeoko #Classified some of the V-wheels and bolts may be original parts.
Shapeoko 1 # ???? Stainless plates, still in the box.
Shapeoko 2 # 3926 not stock

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Re: Rather Large ShapeOko

Postby Improbable Construct » Fri Aug 17, 2012 1:08 am

Digitalmagic wrote:Eager to see your scaled up "Hello World!" !


Here you go:

ShapeOko 087 (Large).jpg
ShapeOko 087 (Large).jpg (70.88 KiB) Viewed 3656 times


I had to tape two pieces of 18"x24" paper together and it was still smaller than my spoil board.

EDIT: Those are inches on that ruler. :)
Shapeoko #Classified some of the V-wheels and bolts may be original parts.
Shapeoko 1 # ???? Stainless plates, still in the box.
Shapeoko 2 # 3926 not stock

Etsy:
https://ImprobableConstruct.etsy.com
Twitter:
https://twitter.com/ImprblConstruct
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Location: Fairhope, AL

Re: Rather Large ShapeOko

Postby Improbable Construct » Fri Aug 17, 2012 3:26 am

With the size of my ShapeOko, wire management became a problem, so I ordered some 18x25mm drag chain from eBay.
I ordered from a seller in the USA and got it in two days. I ran it on top of the dual X axis Makerslide rails, between the motor plate and Z axis plate. It worked okay, but was rubbing on the tops of the V wheels. So I ordered a piece of 1-3/4" wide 1/16" thick anodized aluminum channel from McMaster-Carr for my drag chain to ride in. I kludged together some 3/4" aluminum angle and some Misumi angle brackets to raise it above the X axis V wheels.

ShapeOko 082 (Large).jpg
ShapeOko 082 (Large).jpg (90.85 KiB) Viewed 3643 times

That looks nice and clean doesn't it? :)

ShapeOko 078 (Large).jpg
ShapeOko 078 (Large).jpg (101.51 KiB) Viewed 3643 times

I have straightened that angle bracket, it was causing the drag chain to interfere with the Z axis at that angle.

ShapeOko 081 (Large).jpg
ShapeOko 081 (Large).jpg (80.48 KiB) Viewed 3643 times

Not a lot of clearance on those V wheels, but it is better than the drag chain bouncing across the tops of them.
Also, I had a spare standard plate, so I doubled them up to see if it would help with Z axis rigidity. The jury is still out on that one.
Shapeoko #Classified some of the V-wheels and bolts may be original parts.
Shapeoko 1 # ???? Stainless plates, still in the box.
Shapeoko 2 # 3926 not stock

Etsy:
https://ImprobableConstruct.etsy.com
Twitter:
https://twitter.com/ImprblConstruct
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