Shop for 3D printed and yarn art items

Purchasing Info: To order items from the store just send an email to karl@bambas.com stating the item number, quantity and color desired. You then will receive a PayPal invoice for the purchase. All items are 3D printed or knit to order. Printed items usually ship within five days of payment. Knitted items may take more time. Free shipping on continental US orders over $20.

Oil Drain Couplings p/n 101

Collect the last drop of oil from every oil bottle. It all adds up. Oil Drain Coupling $7.00.


Ignition Wire Guards p/n 102

Wire Guards are 3d printed for 5mm diameter ignition cables used with Slick and Bendix magnetos and 8mm diameter wires used with Emags. They are available in six colors to blend with engine or air baffle colors.

The Wire Guards are 3D printed from ABS filament.  ABS has high tensile strength and is very resistant to physical impacts.ABS is amorphous having no true melting point.  The ABS glass transition temperature of 221 degrees Fahrenheit is higher than that of Nylon.

The Wire Guards installed in N50KB are installed on the baffle side away from the cylinders.  They have endured over 200 hours of engine operation without distortion or other problems.

Prices: 2 hole – $6.00 ea., 3 hole – $8.00 ea.

The Wire Guards are made to be used in EAB aircraft only.  They are not FAA approved parts for use in certificated type aircraft.


Engine Exhaust Plugs p/n 103

Seal the engine exhaust system. Sized for 2″ exhaust pipes. Includes neoprene O-rings and Remove Before Flight pendant on a two foot paracord. Price: $16


Dry Engine Components

Screw and plug caps for Lycoming 4 and 6 cylinder engine oil fill tubes are used to supply clean dry air to the crankcases. The best way to reach TBO on aircraft engines is to (1) fly often and (2) keep internal humidity low between flights. Our plugs and caps connect dryer systems to engines via 5/16″ OD flexible vinyl or silicone tubing available on Amazon and elsewhere.

The oil breather tube caps are available in two lengths, short for most engines $3.00, and long $4.00 for breather tubes with an anti-ice slot near the end. The oil fill caps are $5.50 for the 4 Cylinder screw cap and $6.00 for the 6 cylinder plug (includes o-ring).


Pen and Pencil Clips p/n 108

Clips sized for Vans Aircraft control stick or canopy lift struts, and 3/4″ tubing. Also for pencils or Pilot ball point pens. Specify what you want. Price $1.00


Repeat: To order items from the store just send an email to karl@bambas.com stating the item number, quantity and color desired. You then will receive a PayPal invoice for the purchase. All items are 3D printed or knit to order. Printed items usually ship within five days of payment. Knitted items may take more time. Free shipping on continental US orders over $20.

Aluminum Foiled the Cowl

The interior of N50KB’s cowl was starting to discolor from the engine heat. 8″ wide adhesive backed foil came from Amazon. After wiping the inside with acetone I found the wide foil wrinkled during application. It was cut into 4″ wide strips that worked much better.

Application Method: Cut a strip. Remove about an inch of backing. Align and start sticking. Grab the end of the paper backing from underneath and fold it back on itself while pressing on the aluminum side with a cloth. Slowly pull the backing while pressing with my palm. Follow the fold in its travel to the end of the tape. Burnish as necessary to seal any wrinkles.

Winter Project: Flight Simulator

Dolly and I have reduced our flight time this winter as Covid damped our enthusiasm for eating out.  Result: Fewer hundred dollar hamburgers and a new flight simulator.

I have been thinking about a flight sim for several years.  Dolly was a real motivator for getting the project started.  She loves to fly with me yet has not wanted to learn to fly or touch the controls.  When she said she wanted to try a simulator that kicked off the start of the build.

The sim sits in a space between the two halves of our China cabinet that used to house an old (2001) 52″ projection TV.  We hardly ever watch television anymore.  I avoid uncontrolled advertising and keep up to date via the internet.

The sim has three 27″ monitors that display scenery and the cockpit above the glare shield.  Below the scenery screens are two ~16″ touch screens showing Garmin G1000 Primary and Multi-function Flight Displays.  Mounted between them is Dolly’s old IPad that displays a Garmin 305 autopilot control head.  My IPad is on the right displaying instrument approach charts.  Finally, there are rudder pedals on the floor and a Thrustmaster Joystick on the desk.

All of these components communicate with the computer on the floor.  It has one terabyte solid state memory and a Nvidia 3080 graphics card. Those three blue lights are cooling fans. Software housed on the machine includes XPlane and Microsoft Flight Simulators. 

The four touch screens make the sim close to the Garmin glass touch panel instruments in our RV7.  The flight sim community is heavy into developing new sim instruments.  I hope to soon see a radio and GPS navigator like the real instruments.

Obviously the flight sim is not used 24/7.  However, the computer has all the bells and whistles necessary to make it a good bitcoin miner … but that’s another story.