Dynamic Subspace

Category: Making

LEGO Technics Laptop Stand for 16″ Lenovo Thinkpad P1 Gen4

I’ve been using my Lenovo Thinkpad P1 Gen4 laptop as a desktop replacement system lately, so I wanted to raise its screen higher to avoid slouching and subsequent neck and shoulder pain. While there are lots of solutions to buy, I opted to use the LEGO Technics that I had on hand to build a stand. My goals for the project were facilitating maximum air flow and reliably holding a 4 lb. 5 oz. laptop.

I started by disassembling the folding stand that I had built in 2024, but I noted how I sandwiched a Technic beam between two Technic bricks. The beam’s lower dimension provided a smooth shelf for the laptop’s feet to rest on and the studs on the bricks kept the laptop from sliding off the beam toward the front or rear. I planned to replicate this design in the new laptop stand.

Another important element of the design was an open space beneath the laptop for maximum air flow (this laptop has an NVIDIA RTX A5000 16GB video card that I use for AI workflows). I figured that a rectangular holder for the laptop would work best and allow me to use the black Technic bricks that I had on hand in limited numbers (I have far more light and dark gray elements thanks to all of the Star Wars sets I’ve built over the years).

To strengthen the rectangular frame, there are four layers: top-most brick structure, plates, substructure bricks, and plates. All joints are overlapped, which further strengthens the design.

To support the rectangular laptop frame, I used one L-shaped beam to hold the frame at the bottom and a long Technic brick at 90 degrees to raise the back. As an added support to the back Technic brick, I put a L-shaped beam to apply pressure to the rectangular frame when under the weight of the laptop.

The base of the stand is U-shaped to hold either side’s base in place to prevent any lateral movement, which could cause one of the supports to unhinge.

As a safety measure, I added two Technic L-shaped beams to the bottom center of the laptop frame if not to hold the laptop in place should it slip off then to slow it down as it crashes forward on my desk. I’ve also found this useful for holding paper, such as printed articles, which makes it easy to read and type by looking down-and-up instead of to the left or right.

The stand raises the back of the laptop up 7″, which makes the top of the monitor about even with my eye line. I’ve only been using it a couple of days, but it seems to fit the bill perfectly for my needs.

January 19, 2026
Dorman Products Orange Metal Parts Drawers

Ellis Auto Parts, my family’s business that closed down in 1996 when my parents retired, used to carry Dorman Products, a line of automotive hardware such as bolts, nuts, washers, pins, caps, and a variety of other kinds of parts. While my dad sold a lot of our remaining stock when he closed the store, he kept a lot of unsold product and the metal drawers that we kept the stock in. When I was at home, I stacked up more of these drawers to create a grid against one wall. The full grid is 5 x 5, but I took a photo of 4 x 4 because one of the corner bins was missing a drawer that I couldn’t find–it is likely somewhere in the shop but waits to be rediscovered. I’m glad that we had access to all of these parts during my trip this time, because we made use of them in our many projects.

July 11, 2025
How to Update Your Linux Kernel on Debian Bookworm 12 to the Latest Available on Backports
$terminal screen with system info: jason@desktop:~$ screenfetch | lolcat _,met$$$$$gg. jason@desktop ,g$$$$$$$$$$$$$$$P. OS: Debian 12 bookworm ,g$$P"" """Y$$.". Kernel: x86_64 Linux 6.12.32+bpo-amd64 ,$$P' `$$$. Uptime: 10h 8m ',$$P ,ggs. `$$b: Packages: 2323 `d$$' ,$P"' . $$$ Shell: bash 5.2.15 $$P d$' , $$P Resolution: 1920x1080 $$: $$. - ,d$$' DE: Xfce $$\; Y$b._ _,d$P' WM: Xfwm4 Y$$. `.`"Y$$$$P"' WM Theme: Haiku-Alpha `$$b "-.__ GTK Theme: BeOS-r5-GTK-master [GTK2] `Y$$ Icon Theme: BeOS-r5-Icons-master `Y$$. Font: Swis721 BT 9 `$$b. Disk: 7.7T / 11T (75%) `Y$$b. CPU: AMD Ryzen 7 7700 8-Core @ 16x 5.389GHz `"Y$b._ GPU: NVIDIA GeForce RTX 3090, NVIDIA RTX A4000, NVIDIA RTX A4000, NVIDIA RTX A4000 `"""" RAM: 9486MiB / 63916MiB$

If you’re like me, you might have newer computer hardware that isn’t fully supported by Linux kernel 6.1, which is installed with Debian Bookworm 12. Thankfully, Debian offers Backports, or newer software in testing in Trixie, the development name for Debian 13, that will eventually find its way into future Debian releases for use on an otherwise stable release of Bookworm.

Updating to a newer kernel often brings more hardware compatibility. However, it’s important to remember that using a backport kernel can introduce potential compatibility issues with the software officially supported on Bookworm. Even if installing the latest kernel causes some issues, you can choose to boot from one of your older 6.1 kernels on your install as long as you don’t delete them (by using the apt autoremove command).

I wrote this guide based on my experience installing Linux kernel 6.12 from Backports with the non-free firmware that my hardware needs to work. If you are trying to keep your system free from non-free software, you can omit those references in the instructions below.

Before doing any changes to your Debian installation, remember to backup your files first. Saving important files in more than one media and storing it backups in different physical locations is best practice.

After backing up your files, make sure your install is up-to-date with these commands:
```
sudo apt update
sudo apt upgrade
```
After those updates complete, it’s a good rule of thumb to do a reboot to begin working with a clean slate.

Next, add Debian Backports to /etc/apt sources.list. I used vi to do this:
```
sudo vi /etc/apt/sources.list
```
In vi, arrow down to the bottom line, type a lowercase “o” to add a blank line below the current line, type lowercase “i” to enter input mode, and type the following line into the document:
```
deb http://deb.debian.org/debian bookworm-backports main contrib non-free non-free-firmware
```
After double checking the added line, press the “Esc” key, and type “:wq” to write the file and quit vi.

Now, you need to update apt again:
```
sudo apt update
```
After the completes, enter this command to install the latest kernel from backports along with the kernel’s headers and firmware that might be needed for your hardware (such as networking card, video card drivers, etc.).
```
sudo apt install -t bookworm-backports linux-image-amd64 linux-headers-amd64 firmware-misc-nonfree
```
It might take awhile for the installation to complete. If there are no errors, it should return you to your terminal prompt. If it did, reboot your computer to load the new kernel.

After your computer boots up again, you can verify that you are running the latest kernel by entering this command:
```
uname -r
```
After installing the latest kernel, my computer reports this from the uname -r command:
```
6.12.32+bpo-amd64
```
July 8, 2025
A Simple Moveable Platform for an Oscillating Spindle Sander

Another project for my dad and I was setting up his Grizzly oscillating spindle sander, which had been sitting on a broken pallet for some time.

He had a rolling Shop Fox equipment stand, but it was slightly too large for the sander’s base. So, we cut a piece of 3/4″ plywood to fill its support area and distribute the weight of the sander.

Then, we layered some boards to create a ramp from the pallet the sander was on down to the Shop Fox equipment mover.

When he’s ready to use the sander, the Shop Fox mover has floating feet that can be lowered to take the weight off the front caster wheels.

July 4, 2025
How to Lift and Lower Heavy Equipment with Car Screw Jacks

My dad has a dozen or two of screw bottle car jacks that he used to press and hold every tongue-and-groove cypress board covering the walls and ceiling of the upper floors of their house. We made use of four of them to move two pieces of his heavy machinery into place in his shop.

Some time back, he purchased a milling machine and lathe from Grizzly. He had managed to get them into his shop on furniture movers. Of course, they can’t be run on those platforms, so we needed to find a way to place them flat on the shop’s floor.

For the milling machine, which was heavier than the lathe, we drilled four holes through the metal cabinet and constructed a wood box with bolts going through the short sides of the wood box into the metal cabinet. We placed the four jacks under the long arms of the box, raised it a fraction of an inch to remove the furniture mover and then lowered the jacks until the cabinet rested on a 3/4″ plywood base that we cut to fit. Then, we removed the box from the cabinet after unbolting it and unscrewing the deck screws we had built the box with.

If you do something similar to this, be mindful of the total reach/height of the jack and its minimum. We built the box around the cabinet at a height that allowed for a slight lift and enough lowering to allow the jacks to be removed after the cabinet was lowered.

For the lathe, we did something similar, except we couldn’t drill through its cabinet to bolt the box to the cabinet as we had done with the milling machine because it is double walled and could potentially create problems with bolt alignment (and we would need much longer bolts).

With the lathe being lighter than the milling machine, we felt safe building the box around the lathe’s cabinet and adding two “tongs” that fit into the recesses at the bottom of the cabinet. To make sure the tongs remained in place, we put a tie strap around these and the cabinet.

We lifted the lathe slightly to remove the furniture mover.

And then lowered it onto a custom piece of plywood for it to rest on the floor.

When you don’t have the muscle or manpower, use the tools at hand to get things done. As William Gibson writes, “the street finds its own use for things.”

July 3, 2025