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2020 Metal Corner Set - Black

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RRP: $69.95
$49.95 (You save $20.00)
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 Product Description

2020 Metal Corner Set - Black

Set includes:

  • Lower corner (x3)
  • Upper corner (x3)
  • Top idler pulley (x3)
  • F623ZZ flanged bearings (x6)
  • Bearing plate (x3)
  • Bearing plate screws (x6)

NOTE: If considering another vendor be SURE that you are getting bearings with your purchase. We include them because it makes sense.

We recommend adding the hardware option which includes:

  • M5x10 FHCS - Black (x9)
  • M5x10 Low Profile SHCS - Black (x36)
  • Misumi T-Nuts - (x45)

These corners work great with the following V-Slot Extrusion:

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 Product Reviews

  1. VAST improvement in frame alignment and stability

    Posted by Rafael on 12th Sep 2017

    Upgrading to the metal frame corners immediately solved all alignment issues I was having with my MKVS. While the auto-calibration capability can compensate for SOME imperfections, it is still very important to get the geometry as close to perfect as possible. This upgrade is near the top of my list of "must do." It saves a LOT of time, as well, because building the frame to be flat and square takes a lot less time, and a lot less "fiddling".


  2. Solid and classy

    Posted by Ryan K on 2nd May 2017

    Rebuilt my delta using these corners. Nicely machined and a nice consistent finish. No problems at all with fit and alignment and my frame is as solid as a rock. As other reviewers mentioned, it was a PITA to secure the steppers. There is mention of some updated version that has access holes, but I had no such access with mine. Trying to go through the holes on the outer curves, I couldn't get quite the right angle and torque with a ball head driver. Thankfully it CAN be done, and I don't plan on swapping out my stepper motors on a weekly basis, so don't let the one time awkwardness dissuade you.

    I do recommend getting the hardware kit. I thought about not at the price, but the included parts are exactly what you need with a nice black finish. Much better than digging through my nut and bolt bins finding all the right length screws and t-nuts or having to source them locally.

  3. You'll regret not getting these...

    Posted by Dan on 17th Apr 2017

    I originally used printed corners fir my home made Kossel... the first time my steppers overheated, all of the corners warped and I bought these. I won't build another Kossel without aluminum corners

  4. Best upgrade.

    Posted by Brian K on 15th Feb 2017

    These corners fit perfect and really stiffened up my delta build. Quality finish that looks great. A must for your delta build.

  5. Increased print accuracy and quality

    Posted by Christian Nyman on 5th Jan 2017

    I purchased these due to the printed corners that came with myour kit cracking. This was causing my prints to be lopsided and inaccurate. These shipped really quickly and we're easy to install. The only thing I would change is that I would buy the hardware kit with them as I had to buy the m5 screws and nuts separately, which was a headache. Overall I would recommend these corners to anyone with a delta printer.

  6. A worthwhile upgrade

    Posted by Andrew Lapham on 18th Aug 2016

    Definitely made my printer more sturdy and square. Well worth the price and the fact that it came with the bearings and idler was awesome compared to some other sites. Assembly was easy, though I didn't order the hardware package and the screws I had were too long so I had to go to a few hardware stores to find the right size.

  7. Great set of corners

    Posted by Ian Lares` on 13th Dec 2015

    These corners are great and add a lot of rigidity to a delta printer over the printed parts.

    Although, they make your printer a bit smaller than the plastic set, and since they don't flex at all, it is a bit of a task to assemble the bottom frame bits, and the motors were annoying to attach, but overall, I'm happy with them.

    *** UltiBots Added *** The latest version of the Metal Corner Sets have a MUCH improved method for securing NEMA 17 motors. Use a ball head hex socket driver and insert it through the screw holes on the curved profile of the lower motor corners.

  8. Great upgrade

    Posted by Joe on 25th Sep 2015

    The corners are well made and look great.

    I don't have a set of printed corners to compare, but the printer is rock solid. I have no worries about moving it around. After construction I measured the printer to be completely square.

    The motors were difficult to install. I could not get enough of an angle to get a ball driver in.

    *** UltiBots Added *** The latest version of the Metal Corner Sets have a MUCH improved method for securing NEMA 17 motors. Use a ball head hex socket driver and insert it through the screw holes on the curved profile of the lower motor corners.

  9. Best Upgrade for my kossel

    Posted by Adrian West on 31st Aug 2015

    I have had my printer for a year now and was looking to replace my plastic parts with something more ridged.

    All the parts fit my 2020 frame and assembled well. Made my kossel look awesome!!

    The frame is very ridged. It feels like a solid machine now and not a toy.

    I am hoping to turn the print speed up on my printer now that the frame is so stiff.

    Motors mounted to a sold aluminum block to dissipate some heat I can increase the current and get some more torque out of them.

    There are a few down sides.
    1) No instructions for which way to install idler pulleys. But I figured that out quickly and was able to turn them around in no time.

    2) The motors are hard to mount if you have big fingers. Its hard to get the wrench in the space allotted. But I did get them installed.

    I think these are minor down sided and for any maker who to use these they will get them installed quickly.

    Thanks Ultibots! These are really great.

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