Cable bushings are available in many different variations. Whether bushings for desks or membrane grommets for sealing cable exits – for every application there is a suitable Cable gland. Today, however, we are dealing with the so-called step nipples and how to professionally installed.

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“Imagine taking a hair from your head and trying to stick it into Jell-O covered by Saran Wrap and doing this at a precise depth and position and doing this 64 times within a reasonable amount of time,” she explained.

Finally, insert the step nipple into the hole. With a little pressure you can push the first sealing ring through the opening – then the bore should be comfortably enclosed by both rings. The step nipple should not wobble or even slip out, because then the bore is too large.

Here is a small tip: After clamping the drill chuck, it is best to mark the step to be drilled with a coloured pen. This way you do not drill too far and can proceed quickly without having to pay attention to the laser marking!

The background: In 2017, SpaceX CEO Elon Musk announced that he’d co-founded a new neurotech company called Neuralink. Its mission: develop brain implants that would let people control machines with their thoughts.

Step drills are the specialists for drilling into thin materials of max. 4 mm thickness. One of the many applications of this tool is the installation of cable bushings. The following article will show you how to do this!

For this we use our GSR PROFI electric step drill. In addition to the steps in mm, this drill has dimensions for armoured pipe threads (PG).

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Still, Neuralink appears to be making progress, and while it’s easy to be skeptical of Musk’s timelines, it’s equally easy to imagine how much better the world will be if the company can get its tech to work as envisioned.

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Besides the sealing there are further advantages of these Bushings: they also arrange and insulate the cables. Sometimes on But the most important thing is that a strain relief is manufactured. Thus the cables are protected, do not chafe on the edge of the Drill and do not break so easily.

Musk also said that his company is in the process of submitting paperwork to the FDA to start human trials. The goal is to begin those in about six months, according to the CEO — though it’s worth noting that he has previously predicted trials would begin in 2020 and 2022.

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With the step drills from GSR, no additional tools are needed to drill the through hole: centering, tapping, reaming and deburring are all done in a single operation.

In 2019, Musk revealed that the company was working on a robot to perform the implantation surgery, and during a livestreamed “show and tell” event in 2020, the company gave the world its first look at the Neuralink robot.

For electrical installations it is often necessary to install cables or to lead hoses out of or into a housing. For this purpose the Cable safely and sealed by the housing material (usually a thin sheet of metal or thin plastic) through it. To do this, one uses so-called Cable glands.

Once you have found your two measurements, look at the laser marking on the step drill. The step used for drilling should be between the measured dimensions of the step angle in terms of diameter. This ensures that the step nipple fits into the hole and cannot slip out. To be on the safe side, you can also measure the diameter of the desired drill step on the step drill again with the slide gauge.

“It’s capable of maneuvering these tiny threads — they’re only on the order of a few red blood cells wide — and inserting them reliably into a moving brain while avoiding vasculature,” said DJ Seo, Neualink’s VP of Implant. “It’s quite good at doing this reliably.”

Very important: prepare the drill with cutting oil so that the drill does not run hot and the tool life of the tool is maintained.

This is what the installed step nipple looks like from the front and the back. In our example we have left the cable gland intact. Before or after insertion, the step nipple should of course be shortened according to the required cable thickness.

First measure the step nipple with the aid of the slide gauge. This is done in 2 places: first measure the wider of the two sealing rings. This gives you the dimension which the diameter of the bore must not exceed. Then measure the recess between the sealing rings – this is the minimum dimension of the bore diameter.

The application areas of a step drill are very diverse. They are especially good for the installation of cable bushings to use!

Neuralink just demonstrated its surgical robot for the first time, showing the world during a livestreamed event how the bot could swiftly and precisely insert electrode-packed threads into a dummy brain.

Next, the step drill is clamped into the drill chuck of the cordless drill. Thanks to the practical three-surface shaft, the GSR step drills hold perfectly in the drill chuck and slippage is thus minimised.

“We ultimately want this robot to do essentially the entire surgery — so everything from incision, removing the skull, inserting electrodes, placing the device, and then closing things up,” Musk said at the time. “We want to have a fully automated system.”

Now, the company can focus on automating the rest of the procedure — during the livestream, Odabashian compared the expected progress on the Neuralink robot to that of the systems used to perform laser eye surgery over the past 30 years.

Neuralink has yet to automate other parts of the surgery, but the thread insertion was a logical place to start, since it would be the hardest part of the process to do manually, according to Christine Odabashian, leader of Neuralink’s hardware insertion team.

Stepped nipples are very versatile: Due to their form, they can be used not only in materials of different thicknesses. They can also be used for cables of different thicknesses, as they can be used in several steps and thus the ideal diameter for its cables and wires. receives.

This time, the company gave viewers their first look at the Neuralink robot in action, demonstrating how it could insert 64 threads containing 16 electrodes each into a gelatinous “brain proxy” of a dummy patient over the course of about 15 minutes.

“In the beginning, the laser robot did just the most fundamental core part that it had to do, and the surgeon did the rest,” said Odabashian. “Over the iterations, the surgeon has to do less and less and the laser robot does most of it.”

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Beyond the bot: In addition to the Neuralink robot demo, the “show and tell” also included the news that the company intends for its first two applications to be helping people with paralysis use their tech devices and restoring eyesight in people who’d lost theirs.