IMAC Scratch build Laser 200

[Forgues-Research]

As I said right from the beginning, it will be slow for now since its summer and more time for flying but here are the first parts done with my trusty 3D printer the bottom bulk heads, they are 4mm thick and weigh less then plywood and more rigid

 

[Bartman]

What material are they and how do you bond them to other parts?

 

[AKNick]

here are the first parts done with my trusty 3D printer the bottom bulk heads, they are 4mm thick and weigh less then plywood and more rigid

PLA? PETG? What percentage infill if any? Very intrigued that they are lighter than ply! 4mm is a good choice for thickness in my opinion, if any smaller it wouldn't have anything to bond to and would be subject to flexing. I've never played with bonding 3DP parts, I am also curious what your method is/will be

Also, have you tried lightening holes?

 

[Forgues-Research]

The material used is PLA plus, thickness 4 mm fill 100 % . I tested using CA with hard wood , bond is as good as on wood, . I will do a proper weight testing with this and plywood,

As for flexing, I am using this only for these bulkheads since the only strenght needed is in compression,

Since I am not ready to assemble anything yet, I will do more testing then I already did, and will report back

 

[Forgues-Research]

The material used is PLA plus, thickness 4 mm fill 100 % . I tested using CA with hard wood , bond is as good as on wood, . I will do a proper weight testing with this and plywood,

As for flexing, I am using this only for these bulkheads since the only strenght needed is in compression,

Since I am not ready to assemble anything yet, I will do more testing then I already did, and will report back

Correction, the infill is 20%, not 100%, my bad information. Stay tuned , I have glued a piece of Pine same as I will use for stringers to an exemple , and will break it off via video so we will know

 

[Forgues-Research]

More information on the new FrSky protocol ACCESS


Protocol Introduction
FrSky is constantly looking to improve the performance and reliability of RC transmission. The FrSky ACCESS protocols are the most advanced to date, it offers more features than traditional protocols.
FrSky has developed excellent new ideas that expand the role that a traditional protocols would play. Building on our well acclaimed ACCST protocol, ACCESS offers visionary features like Smart Share™, Smart Match™, and Trio Control ™. Once a receiver is registered to a radio, it can be re-bound at any time without accessing your receivers F/S button. Sharing models has never been easier, and updating has also been simplified, you no longer need to physically connect your receivers for updating. In addition, new tools like a Spectrum Analyzer and Power Meter are now available on your transmitter.
Always on the cutting edge of technology, we have developed ACCESS to improve your flying experience by allowing you to do more with your transmitter and receiver than ever before.
Main Functions and Features
Elevated performance with faster baud rate and lower latency

• Supports 24 full-range channels

Some models require more than the 16 provided by the previous protocol. For these users, ACCESS can use up to 24 channels from one signal.

• Increased baud rate and lower latency

ACCESS offers faster speeds and more precision tricks than ever before. It’s extremely important to stay ahead of the competition. Less latency translates to quicker response time.
More convenient M2M (Multi to Multi) technology

• Wireless binding, updates, and configuration

The need to access the receiver for binding, updates, and configuration are eliminated because this procedure is now achieved wirelessly. Thanks to wireless binding it has never been easier to share your models with other FrSky users. (Smart Share™).

• Automatic binding (Smart Match™)

Binding to your model is more secure than ever before. Once a receiver is registered to a radio, you can easily bind to your models wirelessly without accessing your receiver F/S button. And dual certification of the transmitter and receiver make the binding process safer than before.

• Channel remapping

Have you ever plugged-in and installed a receiver just to find out everything was plugged into the wrong input? Now you can simply remap the channel order on your transmitter.

• Manageable telemetry (Trio Control ™)

You are able to configure telemetry for up to 3 receivers simultaneously through the radio. You no longer need to use STK tools and Smart Port allows the use of third-party input/output devices with pass-through mode.
More reliability and safety – Anti-interference and Anti-hijack system

• Allows radio to act as a Spectrum Analyzer

You are now able to use your transmitter to survey the airwaves, which can measure your signal strength and others in your area. The Spectrum Analyzer allows the user to measure the power, noise, and distortion of the frequencies around.

• Allows radio to act as a Power Meter

The RF power of external devices can be measured with the addition of this new feature.

• Advanced Encryption Algorithm

Higher Encryption means more peace of mind that your model’s signal will not be interfered with.

 

[Forgues-Research]

 

[Snoopy1]

If I understand you correctly the bulkhead that the stringer is being glued to is made in a 3D printing machine. So why can you not make it wider at the locations we’re the stringer is glued to a bigger and better glue joint.

 

[AKNick]

If I understand you correctly the bulkhead that the stringer is being glued to is made in a 3D printing machine. So why can you not make it wider at the locations we’re the stringer is glued to a bigger and better glue joint.

Well. Not a bad idea. Imagine they are built flat. One could extend the material at the outskirts of the areas that the stringers attach to. It all boils down to how much time you want to invest in it. I would think lightening holes and beefed up supports would be the way to go. Look at modern carbon formers... not much there. It definitely plausible. Just a considerable amount of time drafting, printing, testing, repeat to make it just right whereas a solid piece is sufficient and sounds like lighter than the ply!

 

[Snoopy1]

The time factor, which of the three is the time consuming, drawings, printing, and testing. Testing I get sometimes when it is done you say to your self by making small adjustments it will be better, stronger and or lighter.
In which format are the drawings done and how is it presented to the printer.