eShapeoko #330 build log

Georgei
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Joined: Mon Dec 22, 2014 11:22 pm
Location: UK

eShapeoko #330 build log

Post by Georgei » Mon Feb 23, 2015 9:42 pm

I was reading and comparing entry CNC machines for the last 6 months. The opportunity to buy one came when the University I work for, wanted some special made CNC routed wooden parts. Because the number of the items was small and very delicate the quotes they got were from another galaxy ( I am Astrophysicist and Engineer). So I have been offered to make the parts for the cost of a mechanical kit of a Shapeoko (I would put the electronics myself). That was less than half the price they have been quoted.

So I decide to buy the eShapeoko because I always try to buy locally - in this case England. But there was a problem. The kit was not ready to be dispatched and there was a waiting list. Finally 2 1/2 months the kit arrived.


Nicely packed and undamaged from the delivery company.
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And here is the content.
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After 2 days the first test.

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What I liked so far:

All the parts were nicely organised in plastic bags making the assembly easier.
There was nothing missing.
The assembly instructions were very clear to follow and I had no problem with them.
Everything looks to work.

What I didn't like or it was frustrating:

Making the M5 threads in the slides was the most boring part of the built.
I am not really happy with the way that you have to align the Tr 8 x 2 trapezoidal screw with the holding block. It looks to work but I can she a little of womble there.
I would like the Y carrier plates to be thicker (they are 2mm Stainless steel). I can see them flex if I try to move the one side of the y axis opposite to the other.
Ideally they should have been 4mm the same thickness as the end plates.
It was a nightmare to attach the micro switches for homing and limit. They are not included in the instructions (because they are not included in the kit).
They have some tiny M2 screws and you have magically to put the washer and the nut between the carrier plate and the rail. The only way is with tiny nippers. I have spent a good 2 hours until they were in place. I think there should be a note to put them before you assembly the carrier plates and rails together.

Next step will be waist-board and spindle.

cvoinescu
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Re: eShapeoko #330 build log

Post by cvoinescu » Mon Feb 23, 2015 10:22 pm

Thank you for taking the time to document this.

I have changed the instructions to mention the limit switches. Hopefully, this will save others the frustration you experienced -- sorry about that.

To save everyone from having to tap the MakerSlide, I tried to find M4.5 thread-rolling screws. They would fit perfectly in the 4.2 mm diameter holes of the extrusion. They do exist, but they don't seem to be a stock item anywhere. They are manufactured to order, and the minimum order quantities are prohibitive. (If anyone knows of a place to get M4.5 Taptite or similar screws, I'm all ears.) Other potential solutions:
  • have the fabricator tap the holes: expensive;
  • do them myself: I did it initially, for a fee, but it got old fast, and I stopped doing it;
  • Use the self-tapping Misumi HTJ5 blind joints: expensive.
Of these, the HTJ5 is the most acceptable solution. I should probably sell sets of these for people not willing to tap the rail.

The motor plates are, indeed, a bit thin. The eShapeoko is based on Edward's Shapeoko 1, which had plates of the same thickness, made of stainless steel, zinc-plated mild steel, and powder-coated mild steel, in different versions. I was reasonably happy with them, especially on a small machine, but perhaps an upgrade is needed. 4 mm stainless steel would be very heavy, though.
Proud owner of ShapeOko #709, eShapeOko #0, and of store.amberspyglass.co.uk

Gadgetman!
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Re: eShapeoko #330 build log

Post by Gadgetman! » Mon Feb 23, 2015 11:12 pm

you'll find that 6mm 6061 or 6082 aluminium has almost exactly the same weight as that steel, but is rather less flexible.
(Pricier, too, but that's another matter... )

If you run the ShapeOko at low Feed speeds, you should be able to cut new plates on it.
A bonus then is that you only have to drill or mill those holes you actually need for your specific build, which will also help with rigidity.
Weird guy...
Shapeoko 2014F: 1000mm X/Y, 300W Quiet Cut spindle, Arduino Uno/G-shield and GRBL 0.9i
15x30 drag chains, custom spindle mount, 9mm belts, 8mm endplates, 6mm motor plates.

Georgei
Posts: 148
Joined: Mon Dec 22, 2014 11:22 pm
Location: UK

Re: eShapeoko #330 build log

Post by Georgei » Tue Feb 24, 2015 4:18 pm

And here is the first cut.

I have to say that I am get used to big machinery but I have to admit that the eShapeoko is a little beast.

The spoil board is a temporary one, so it is not levelled.

My dremel handled this kind of cuts without any problem.

I am really impressed with the little Nema 17 - high torque from Catalin.

They have handle everything without a problem and they were cool after 4 hours of cutting.

You can see in the photo my cables spaghetti.
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And here the result of the first cut.

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cvoinescu
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Re: eShapeoko #330 build log

Post by cvoinescu » Tue Feb 24, 2015 4:51 pm

That is wonderful for a first cut!
Proud owner of ShapeOko #709, eShapeOko #0, and of store.amberspyglass.co.uk

Georgei
Posts: 148
Joined: Mon Dec 22, 2014 11:22 pm
Location: UK

Re: eShapeoko #330 build log

Post by Georgei » Tue Feb 24, 2015 10:43 pm

It hasn't done bad. I am a little cautious with the feed rates and the depth of cut.

After I will finish the box for the electronics I will spend some time to tune it.

Georgei
Posts: 148
Joined: Mon Dec 22, 2014 11:22 pm
Location: UK

Re: eShapeoko #330 build log

Post by Georgei » Wed Feb 25, 2015 10:16 pm

And here are a couple of photos of the almost finished electronics box.

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lioramsalem
Posts: 88
Joined: Mon Jun 09, 2014 1:43 pm

Re: eShapeoko #330 build log

Post by lioramsalem » Wed Feb 25, 2015 10:42 pm

Like !
ShapeOko 2 #5840 w/ NEMA23, ACME Z axe belt upgrade, limit switches, spindle speed control, 400w brushless spindle, 9mm belts, aluminum bed, eShapeoko X carriage and belts system

Build log: http://www.shapeoko.com/forum/viewtopic.php?f=5&t=3650

Cjm_warrior
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Joined: Tue Jan 20, 2015 9:44 pm

Re: eShapeoko #330 build log

Post by Cjm_warrior » Sat Feb 28, 2015 3:39 pm

This is great so pleased you have got it up and running!

Looks good, nice little box

Georgei
Posts: 148
Joined: Mon Dec 22, 2014 11:22 pm
Location: UK

Re: eShapeoko #330 build log

Post by Georgei » Sat Feb 28, 2015 4:09 pm

Here is a temporary dust shoe made from MDF.

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The black-red tube on the left of the Dremel is the webcam for zeroing X and Y axis.

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IMG_7736.JPG (46.49 KiB) Viewed 2303 times

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