Repairing the Silhouette Cameo 4

I don’t use Cameo cutter much at all, so I was pretty disappointed to see it not working correctly when I wanted to cut some vinyl stickers. The carriage would just slowly move to the right and stop. Turn it off and back on, and it would do the same until it hit the right side and make a terrible knocking noise.

Disassembling the unit and doing some online searching it seems the left stop sensor was bad. It is a Normally Open IR switch and after doing some extensive searching was able to find one online. I mocked up the circuit board and cut one on the Glowforge, did some very small soldering to wire it up, and it 100% fixed the problem.

Silhouette is charging $100 to fix this problem, there are tons of people who have these cutters sitting in a corner, and it takes 4 screws and a few parts to fix. read more

Aero Bottle Holder

Another 3D printed bottle holder for my Canyon Speedmax. This is a raised bottle holder for between your arms and mounts a traditional water bottle cage.

The typical distance between for the mount holes on cages are 64mm. 2 100mm M5 bolts keep the mount attached to a custom made carbon fiber base plate.

3D Printing Project: F1 Sim Wheel

I have always enjoyed the concept of being immersed into a virtual world. One of my first experiences with VR was in roughly 1993 when our local arcade introduced a game from one of the OG gaming founders John Waldron called Dactyl Nightmare on a 1000CS. After that experience, I have always wanted to build a motion sim which gets you as close to reality as possible.

Last year I took the first steps and decided to put the initial blocks in place and start with sim platform that I could eventually add motion to. I purchased a Fanatic wheel base and thought it would be a great learning experience to build the steering wheel from scratch. Many of the components can be built versus bought which is what is keeping me motivated to eventually get the entire system together. read more


Designing, building and then using something you have made, has been one of the most rewarding and personally satisfying activities I have found in my life so far. I was born a tinkerer, always disassembling, trying to understand and improve or recreate.

My favorite TV show is “How it’s made”.

I have way too many expensive tools, printers, cutters and machines, and not a single one has made a significant return on the investment … but, what I have learned using them has been 10x …

Its not just the tool, its the tools to use the tool, the software to design the product, the process to start, run or finish the machine or product, the prep work, consideration and the functionality. read more

Laser Cutting Project: Bicycle hook

This weekends challenge, a better hook for a bicycle:

Want to laser cut one of your own or remix it? Check it out on Thingiverse

This is a vertical based bike hook for bicycles with aero (deep) front rims. Currently there are not many wheel hooks that keep the front wheel vertical and that don’t scratch the rim when putting the bike up.

The hook is lasercut using a glowforge and medium draft board (the material thickness is important as all the slots need to interlock). Assembly is slotting the parts together and installation requires two screws/anchors into the wall.

It was specifically designed for a Reynolds AR80, however, I believe other wheels with similar dimensions, depths or profiles should fit. read more

DIY: Physical Random Number Generators

One of the benefits of Quantum Computing is their ability to generate truly random numbers.

Since classical computers are deterministic machines, governed by algorithms, they are inherently predictable. Therefor any number generated by a classical computer, even if it seems complex is actually based on a set of conditions or algorithm, which therefor makes it a “pseudo random number”, rather than truly random.

To generate truly random numbers you need to rely on a physical processor or phenomena that are unpredictable, examples of this include radioactive decay, electronic noise or even atmospheric noise.

Since QC is essentially based on a physical process and the probabilistic nature of quantum mechanics, its qubits can exist in a superposition state, this means they can represent a combination of 0 and 1 simultaneously, this state/property can be harnessed by QRNG (Quantum random number generators) to produce truly random numbers.

As a fun project, I decided to build a small physical QRNG using an Arduino, laser diode, beam splitter and two photo resistors. The basic premise is that you pulse the laser, it sends a wave/particle (both!) through the beam splitter, 50% of the time it should hit one of the two photo resistors, providing you with a random string of “1”s or “0”s.

While a very simple, basic and small example, it is a fun experiment. Check out if you would like to build your own. To make this a little easier, I laser cut a template/outline for the beam splitter for holding each of the components.

Enjoy Randomness? Check out these blog, sites, references:

Non Quantum RNG generator using zener noise:

Nice video explaining the seed variables used and middle squares:

DIY: Ion Trap Quantum Computer

An ion is a atom with one of the outer electrons removed (normally removed by pointing a laser beam at it) – forming positively charged ion.
Ion trapping is done in a vacuum chamber to isolate the ions from the external environment as much as possible. (And avoid other atoms in the air from bumping and

  • Atoms
    • Consist of 3 components, a proton and neutron (called the nucleus) in the center and electrons which orbit this nucleus
    • 117 different types
    • Are elements the same as atoms
    • Every element is unique and has an atomic number
      • That number tells you the number of protons in every atom of the element. The atomic number is also called the proton number.
      • read more

  • DIY: Home Sprinkler System

    Price Schedule 

    Orbit Sku Part Name Price Quantity Item Total 
    26030 Sprinkler Pull Up Tool $8.13 $8.13 
    31273 1/2 In. x 520 In.Thread Seal Tape $2.29 $6.87 
    26085 1/2 In. – 1 In. PVC Cutting Tool $5.27 $5.27 
    26120 1-1/4 In. Poly Pipe Ergo Cutter $13.94 $13.94 
    53376 Orbit Sprinkler Flag; 10 per bundle $2.49 $12.45 
    53333N Walkway Tunnel Kit $5.60 $5.60 
    31980 Blu-Lock Release Tool Set $4.01 $4.01 
    31377 3/4 In. x 1/2 In. Blu-Lock Coupling $1.92 23 $44.16 
    31670 1″ Blu-Lock 3X Tee $3.09 $18.54 
    31373 3/4″ x 3/4″ x 1/2″ Blu-Lock 3X Tee $2.33 16 $37.28 
    31684 3/4″ X 3/4″ X 1″ Blu-Lock 3X Tee $2.65 13 $34.45 
    31673 1″ Blu-Lock 3X Elbow $2.35 28 $65.80 
    31374H 3/4 In. Blu-Lock Elbow $2.33 $13.98 
    31985 1/2″ BL x MPT Swing Joint 3X $1.55 39 $60.45 
    31975 1/2″ Blu-Lock Street Elbow 3X $1.22 22 $26.84 
    31676 1″ Blu-Lock 3X Coupling $2.30 $4.60 
    31376 3/4″ Blu-Lock 3X Coupling $1.48 $2.96 
    Gear Drive Nozzles 
    —– 15-24′ 1.5 GPM Rotor Nozzle $0.00 $0.00 
    —– 15-24′ 3.0 GPM Rotor Nozzle $0.00 $0.00 
    —– 15-24′ 0.8 GPM Rotor Nozzle $0.00 $0.00 
    —– 25-35′ 1.0 GPM Rotor Nozzle $0.00 $0.00 
    Mainline Pipe and Fittings 
    —– 1 In. Slip PVC Coupling $0.38 $0.38 
    — 1 In. Slip PVC Elbow $0.48 $0.48 
    37682 1 In. x 100 Ft. Blu-Lock Sprinkler Pipe $48.99 $293.94 
    37382 3/4 In. x 100 Ft. Blu-Lock Sprinkler Pipe $37.99 $189.95 
    —– 1″ x 10′ Schedule 40 PVC Pipe $2.47 $2.47 
    37980 1/2 In. x 100 Ft. Blu-Lock Sprinkler Pipe $32.99 $32.99 
    Pop-up Gear Drive Heads 
    55179 Saturn IV Professional Gear Drive $10.04 16 $160.64 
    Pop-Up Spray Heads 
    54616 4″ Pressure Regulating Pop-up Spray Head w/o Nozzle (5 Pack) $18.49 $92.45 
    Pop-up Spray Nozzles 
    53582 10 Ft. Adjustable Nozzle $2.16 17 $36.72 
    53583 12 Ft. Adjustable Nozzle $1.79 $3.58 
    53580L 4 Ft. Adjustable Nozzle $2.16 $8.64 
    Sprinkler Timers 

    Paul Aschmann 

    5200 Rialto 

    Orbit Sku Part Name Price Quantity Item Total 
    57946 6 Station B-hyve Smart Wifi Timer $109.99 $109.99 
    Sprinkler Wire 
    57002 Grease Cap Kit for Valves (Package Of 4) $6.89 $13.78 
    57093 5-Strand x 100 ft. Sprinkler Wire $34.42 $34.42 
    57002 Grease Cap Kit for Splicing (Package Of 4) $6.89 $0.00 
    Valve Boxes 
    53230 Valve Box Base $23.66 $47.32 
    53212 12 In. Standard Valve Box (Black/Green) $29.99 $59.98 
    Valve Manifolds 
    57207M 1″ Blu-Lock Manifold Transition Adapter $2.49 $14.94 
    57202 3/4 In. or 1 In. Slip Swivel Adapter $3.19 $6.38 
    57250 2 Valve Inline Manifold Assembly $55.29 $165.87 
    31378 1″ MPT x 1″ Blu-Lock Adapter $2.67 $5.34 
    57184 Double Swivel Union $4.35 $4.35 



    3/4” Inflow

    1 Gallon in 10.5 seconds

    70 PSI (60, 70, 80, 100)

    Posted in DIY