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My RailCore

Posted: Tue Jan 16, 2018 3:46 pm
by mhackney
I started building mine back in Sept-Oct along with one of my local supporters (we each built a RailCore). This was early days so part of the job was to sanity check the documentation, BOM, etc. This was my first CoreXY machine and I was VERY interested to see how it performed since I've seen and heard great things about CoreXY. I videoed my supporter's build and am slowly working through editing the 10 hrs of footage! I'll post on my YouTube channel when complete and a link here.

Our builds had a few little "gotchas". The RailCore was designed for 1/4" melamine side plates. We couldn't find a source for the proper melamine even with Tony's help. We both ended up using 1/8" water jet cut aluminum panels. This required tweaks to various mounts and other parts that Tony and Steve made for us.

I hosted a couple of sessions in my kitchen for RailCore builds and as you see in the photo, a friend doing a Duet Wifi, Trick Laser arms, and Bondtech BMG upgrade to his RMax V2.
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I painted my aluminum with PlastiDip spray cans in Sublime Green (I kid you not), white and a black bottom. The results are really nice.
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And of course it gets my logo on the back.
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Here is the awesome base plate that Matt at 713Maker machines for the RailCore. Superb work:
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and my custom water cooled V6 hot end:
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Palette+ tubing mount
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The specs are:

.9° steppers
Duet Wifi
AC heated bed controlled through an SSR
borosilicate glass with PEI adhered on top
Bondtech BMG extruder
Modified E3D V6 hot end with water cooling jacket
I am also using one of my Palette+ with this printer

Overall: I'm very impressed with the print quality and print speed. I'm becoming a believer in CoreXY. This printer is becoming my go-to workhorse for a lot of jobs and it is getting dialed in nicely. Here are some prints.
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Re: My RailCore

Posted: Wed Jan 17, 2018 9:04 am
by DeltaCon
I wondered how it was coming about ;-)
What's that extruder? Looking at pictures on their website I cannot figure out which one it is.
And why is it wearing a "jacket"?

Edit:
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Hmmpf... Just read it's a BMG, just the lever looked longer in your pictures ;-)
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Nice work! I am thinking about building a hevo. To be honest I think the rigidity of my V2 is (and always was) a limiting factor. I have been struggling with it for about 2 years now, and each time there seems to be a new problem. I still like the idea of a delta, but I am tired of updates not bringing what I expect from it. I could go all-metal, but cannot find a metal frame for a friendly price. So maybe I'll leave the V2 as it is and build another alongside.

Re: My RailCore

Posted: Wed Jan 17, 2018 9:27 am
by mhackney
The extruder is a stock Bondtech BMG, the jacket (green) is the mount for my Palette+ filament delivery tube. The hot end is a stock E3D V6 that I modified with a water cooling jacket.

Re: My RailCore

Posted: Thu Jan 18, 2018 12:26 pm
by mhackney
This was my very first print on the RailCoreII (can we call it RailCore // for convenience?)
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Re: My RailCore

Posted: Thu Jan 18, 2018 3:35 pm
by kraegar
I still chuckle that you dove right in with that as a first print - still, turned out great!

And yeah, I usually just say "RailCore" as well.

Re: My RailCore

Posted: Thu Jan 18, 2018 4:27 pm
by mhackney
No guts, no glory as they say. But as a 3D printing maestro (not my words!), I can make any instrument sing. Plus the "slicer trickery" is more a function of hot end and extruder and I have lots of Bondtech BMG / E3D V6 water cooled experience. Cake walk!

You can see that I hadn't even sanded the PEI yet, all glossy!