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Aluminum Arms For the Replicator 2 & 2X

by bottleworks, published

Aluminum Arms For the Replicator 2 & 2X by bottleworks May 6, 2013

Description

For more Info, See: bctechnologicalsolutions.com/replicator2arms

Have you been having issues with your MakerBot Replicator 2 or 2X Z Stage arms warp or excessively vibrate? The Replicator series is a Revolutionary set of 3D printers pushing the limits of small scale 3D printing. As people reach new advances in desktop 3D printing, stability and consistency are critical. The OEM Z Stage arms are made of ABS plastic. Unfortunately, when the plastic arms are exposed to the heat generated by the HBP (Replicator 1 & 2X), they warp, sag, and otherwise move. This warping and sagging make it Incredibly difficult to have a consistently level HBP. As a result, constant tweaks and adjustments are required. Another issue is the low mass and flexibility of the plastic arms. During high speed printing, the OEM arms, lightly vibrate. These vibrations contribute to further distort the object being printed. This is less apparent in the Replicator 2, but artifacts continue to appear during high speed printing.


Virtually eliminate these issues by upgrading to custom CNC milled aluminum Z Stage arms. These replacement arms are made out of a single solid piece of 6061 aluminum.

- The arms are designed to replace the original plastic arms.
- There are 4 bearing retainers which you can print yourself, or can be purchased with included hardware.
- 4 new LM10UU linear bearings for the Z axis included
- No more constant adjustments due to unwanted arm movement.
- Greatly reduced platform vibration (springboard effect).
- Each set comes with step-by-step installation instructions in full color.

Recent Comments

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Can you upload the STL file for the spring spacers?

Corrected bolt spacing. At some point, I noticed that it didn't quite match up with the OEM arms. It was never caught because the backplate must be replaced. So, I updated the arms.... Consequently, I had actually forgot that I did that, until somebody tried to install set of arms with the updated drill pattern. If anyone was accidentally sent the incorrect version, please email me.

What's the difference between the 2014_arms_back_plate.stl file that was uploaded 3/19/14 compared to the original one from 2013?

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Instructions

Everything is to be printed with ABS plastic.
Print the bearing plates with 100% fill.
Print the rest with 10-12% infill, 2 extra shells.
The "full" back plate is an optional version that helps remove some "hidden" areas where plastic bits can fall into and get lost.

Comments

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Scott216 on Mar 30, 2014 said:

Can you upload the STL file for the spring spacers?

Scott216 on Mar 24, 2014 said:

What's the difference between the 2014_arms_back_plate.stl file that was uploaded 3/19/14 compared to the original one from 2013?

bottleworks on Mar 24, 2014 said:

Corrected bolt spacing. At some point, I noticed that it didn't quite match up with the OEM arms. It was never caught because the backplate must be replaced. So, I updated the arms.... Consequently, I had actually forgot that I did that, until somebody tried to install set of arms with the updated drill pattern. If anyone was accidentally sent the incorrect version, please email me.

dan3088 on Jan 8, 2014 said:

Hi I installed your z stage arms on my replicator 2 last night and when I went to level the build plate the z axis end stop switch kicked in and the plate was 1cm lower than the extruder. Should I have moved the switch

bottleworks on Jan 8, 2014 said:

Hello. Check to make sure the endstop switch is in the location noted in the instulation manual. For support, please email me at support -at- bctechnologicalsolutions -dot- com . The comment section isn't a good medium to provide user support. If you could email me a photo of the Z-stage all the way to the top, that would be helpful in troubleshooting your machine. Thanks

pottiepie on Nov 22, 2013 said:

Link to the arms is not working. How else can we fix the alignment issue?

funkshin on Oct 11, 2013 said:

This is a fantastic upgrade.

ldabkey on Aug 31, 2013 said:

Installed modification today. Went well. Instructions and parts are top notch. Well done.

Bosnianbill on Aug 19, 2013 said:

The machining and hole placement on these is PERFECT, making the assembly a snap. The provided instructions are clear and full of photos, leaving little doubt about what you need to do. My installation took about 90 minutes, but I went slow. Hint: after installing the arms on the two z-axis rails, DOUBLE check that the arms move up and down smoothly. The bearings are a little picky, but taking a moment to rotate them until there's no hang-up will save you a lot of time later. This kit is well worth the money and I would not hesitate to do it all over again. It saves you time if you buy the HBP and install everything at the same time. The HBP is the same high quality of manufacture and comes with quality instructions. Hint #2: buy an extra glass plate or two... you can always have one ready to go.

GuidoZelf on Jul 29, 2013 said:

Installed easy and everything is a good fit.
Just did my first print and really happy with this upgrade.
Thanks!

delleps on Jul 21, 2013 said:

Received and installed today. Fit and finish is perfect. Z-stage no longer "groans" every time it homes or begins a print thanks to the much better bearings included in the upgrade. Looks great, works great. Worth every penny!

Sf_32Kilo on Jul 6, 2013 said:

Ordered today,
Just got a Rep 2 and this was something I noticed it needed from day one.
Thanks!

ten13th on Jun 26, 2013 said:

Hey Bottleworks. I had ordered the Full Set, would l still need to print these parts?

bottleworks on Jun 26, 2013 said:

A full set includes all the needed printed parts (and everything not printed). So, no printing needed with a full set.

bottleworks on Jun 12, 2013 said:

8 sets remaining in stock and ready to ship!

bottleworks on May 31, 2013 said:

At this time, 19 sets remaining for this ordering group. The ship date for this group is 2-3 weeks.

PropellerScience on May 7, 2013 said:

You included 4 bearings? That's awesome!

wgss on May 6, 2013 said:

Wonder if this affects the warranty at all??

bottleworks on May 6, 2013 said:

It's safe to say that MBI isn't going to cover damages caused by modifying your printer. But it would be hard for someone to cause damage. They really would have to be doing something wrong.

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