aeroengineer1 - Network

Finally making progress on the Kairyu design. I started a few years ago, using some low resolution and very distorted plans from the US...

Finally making progress on the Kairyu design. I started a few years ago, using some low resolution and very distorted plans from the US Naval Technical Mission to Japan. I now have official copies of plans for quite a few aspects of this boat.

We had a fox visiting the backyard after the snow.

We had a fox visiting the backyard after the snow.

We made another functional 3D print. We got a bird feeder that identifies what type of birds come to feed. We have put our bird feeders...

We made another functional 3D print. We got a bird feeder that identifies what type of birds come to feed. We have put our bird feeders outside the kitchen table window because it keeps the squirrels out of the feeder. This new feeder did not come with a window mount, so we had to design one.

New toy came today, 60W MOPA laser. It can control the pulse in a way that you can grow colored oxides on metals like stainless steel and...

New toy came today, 60W MOPA laser. It can control the pulse in a way that you can grow colored oxides on metals like stainless steel and titanium. My guess is that it will generally work on self passivating metals.

I have a rotary attachment that is coming as well.

Well, I would say that my photogrammetry, key point extraction for reverse engineering has worked out really well! The next step to take it...

Well, I would say that my photogrammetry, key point extraction for reverse engineering has worked out really well!

The next step to take it to the next level for comparison is to import the camera poses and pictures from Reality Capture into Blender and then do a final comparison with the CAD model. That is a tomorrow effort.

For now, here is my roughly positioned camera pose overlaid on a picture with transparency.

My latest evolution of my Reality Capture workflow. Now I use a single plane of symmetry to "increase" the dataset. I took each...

My latest evolution of my
Reality Capture workflow. Now I use a single plane of symmetry to "increase" the dataset. I took each picture and mirrored it about the vertical plane. This allowed capturing symmetrical features that I only originally had views from one side.

Still manually using control points and manually positioning them. I then extract the control points and then back compare to my CAD model. It is easiest to combine this workflow in @Blender Here is a diagram of the workflow.

I am getting better at using fSpu with @Blender. I think that I am getting close to being able to make proportion changes while also using...

I am getting better at using fSpu with @Blender. I think that I am getting close to being able to make proportion changes while also using the picture itself.

My latest effort to design a flying replica of the NAVAIR Spike missile. Using low resolution diagrams and pics to get the shape correct...

My latest effort to design a flying replica of the NAVAIR Spike missile. Using low resolution diagrams and pics to get the shape correct with @Blender and fSpy to align the views of a picture to the actual model. It is not perfect but close.

By doing this, I found that the trailing edge of the aft fins were not aligned to the aft edge of the body tube. I was also able to identify that my mounting lug on the forward fins is too small and that I need to increase the diameter of the boss.

I wanted a new name plaque for my cubicle at work. I may have overdone it a bit!?

I wanted a new name plaque for my cubicle at work. I may have overdone it a bit!?

Anyone know if there is an Android app that will automatically connect to a generic BLE Bluetooth 4.0 device when in range? I have a...

Anyone know if there is an Android app that will automatically connect to a generic BLE Bluetooth 4.0 device when in range? I have a microbit that I want to respond when my phone comes in range. It is going to be a reminder light to grab my phone before I leave.

I did my first RF analysis with Cenos antenna simulation software. This was just a simple case of using one of their templates. I am wanting...

I did my first RF analysis with Cenos antenna simulation software. This was just a simple case of using one of their templates. I am wanting to take it to the next step of simulating antennas for my RC submarines. I will need to see if I can change the domain from air to water as well as still have some air in the simulation .

Designing my first PCB in a long time. Looking at PCB tools. Would go with Altium CircuitStudio, but since 2018 is still at V1.5. Looked at...

Designing my first PCB in a long time. Looking at PCB tools. Would go with Altium CircuitStudio, but since 2018 is still at V1.5. Looked at DipTrace and might go there eventually. Might go back to RSDesignSpark PCB, but it was quirky. KiCAD is out without integrated autorouter.

I am also playing with my favorite circuit simulator to add some current capability to my son's and my rocket launch controller by...

I am also playing with my favorite circuit simulator to add some current capability to my son's and my rocket launch controller by adding a mosfet to the system.

By going with the higher bit resolution encoder , it would allow for a lower overall effective bit output. Magnetic shielding may be needed...

By going with the higher bit resolution encoder , it would allow for a lower overall effective bit output. Magnetic shielding may be needed to prevent that from interfering with the measurement

And after a while, the design becomes a refined concept. This is ready to start putting into CAD, and do more in-depth (you see what I did...

And after a while, the design becomes a refined concept. This is ready to start putting into CAD, and do more in-depth (you see what I did there?) calculations. This design will fit a piston tank ø2.375" and have a travel of 3.9". The sensor package measures 0.9" x 0.36" x 0.5".

Here are the mechanical resolutionsfor different bit resolution magnetic encoders:
*10bit: 0.00381"
*12bit: 0.00095"
*14bit: 0.00024"

Today I was able to get some things out of my head. This is a bit of stream of consciousness as I started to converge on an idea. I have...

Today I was able to get some things out of my head. This is a bit of stream of consciousness as I started to converge on an idea. I have some hand sketches that started it, and then moved to a simple tool such as PowerPoint to increase fidelity without significant time going to 3D.

I was looking for some magnetic encoder chips and came across the MPS MP6551 DC motor driver IC. Looks like combined Rds,on is under...

I was looking for some magnetic encoder chips and came across the MPS MP6551 DC motor driver IC. Looks like combined Rds,on is under 30mOhms. I may have to get some to play with. I also want to get some of their encoders for my project too!

https://www.monolithicpower.com/en/products/motor-drivers-and-motor-controllers/mp6551.html

@makingtolearn I have started to play with the setting for my project. The stone is not yet set. I need to clean the setting and weld on...

@makingtolearn I have started to play with the setting for my project. The stone is not yet set. I need to clean the setting and weld on the stem and leaves. Not sure if I want to apply the patina before or after setting the stone. And yes the stone is inverted as I am trying to go for a specific look.

I got a favorite from @makingtolearn for my beginner jewelry related project. I will take that as high praise :) In more seriousness, I am...

I got a favorite from @makingtolearn for my beginner jewelry related project. I will take that as high praise :) In more seriousness, I am always open to coaching. If you see something that can be done better, let me know!

Me playing with some more creative things. Making some leaves that will eventually be part of a rose. Made from copper so that I can turn...

Me playing with some more creative things. Making some leaves that will eventually be part of a rose. Made from copper so that I can turn them green. Made from solid strand copper wire. First time playing with metalsmithing.