Hi there!

I don't have phlatprinter (yet) but I got a suggestion of posting some of the projects progress here in case someone with a printer is interested in this?

My main project is posted on rcgroups.com: http://www.rcgroups.com/forums/showthre ... st10707737

The plane is mainly out of depron but has an internal structure designed to distribute local impact forces to other parts of the plane. The internal structure is made of balsa and heavier wood.

The fuselage is made of 6mm depron while the wing is made with an internal structure of 6mm depron wing profiles covered by a 3mm depron layer. The tail booms are cut off ski poles of carbon fiber and the tail fins are made of layered depron.

I guesstimate the target weight to be 700-1000g and the wing area is about 0,17m². This would mean that the wing loading would be about 4.10-5.86kg/m².








Cheers!

/Simon Attached files

 

yes, this is seriously cool
Have bookmarked the thread you have
I am only interested in RC for FPV/UAV so this is right up my field.

The only draw back of military spy planes is that tend to be too much the glider type (stable and stay as long as possible in the air) but sometimes I'd like a bit more manoeuvrability

 

It will be very interesting to see how this bird handles. I'm not aiming for 3D performance but I don't think it's impossible with even this model. Just by changing to a more powerful engine and increasing the control surfaces will do a lot I think.

 

At first I will use a 3S2150mAh battery with a Turnigy C3530-1400Kv motor. I guesstimate the CG will be just in front of the wing. Any suggestions on perfect CG-position is very welcome. The FPV-gear will of course add weight but I don't think it'll be that much and depending on what equipment is used their respective position may have to move.

I've got a 2S900mAh battery for the video as well as a couple of Panasonic CX161-cameras but haven't got a VTx/VRx yet. I still have to decide on what frequency I should get, 1300MHz or 5.8GHz.

 

This Shadow 200 design is freakin awesome boopidoo! What CAD system are you using to model it? Bet you can't wait to get your PhlatPrinter to eliminate the tedious process of cutting parts for this design by hand!

 

Thanks!

I use Autodesk Inventor 2008 to model in since that is freely available for me plus it's really easy to model in it. The only drawback I've noticed is that it doesn't model dynamic parts such as flexible wires, cables in any easy way. However, almost no 3D CAD software does this.

Since I don't have the PhlatPrinter I guess I don't know what I'm missing. Anyone know someone in Uppsala, Sweden who has a PhlatPrinter, cause I really like to see one (and try it out).

BTW, I've now cut out and assemled the gimbal pod with camera. I just need to find a suitable, sturdy and lightweight axle with a 2mm diameter, any suggestions? In the picture there's attached axle shims/stoppers. I first thought of using steel but maybe there's a lighter yet as functional solution. The axle must be stiff so I'm not sure any plastic would do.

Attached files

 

Well, too bad that you live on the wrong side of the country I (think I) have the only phlatprinter in sweden, and I'm located in Trollhättan. If you want any parts cut, shoot me a PM and I'll see what we can arrange.

The phlatprinter is great, but it has one major flaw. It is too narrow. The depron sheets in sweden comes in 1250x800mm which gives the option of splitting it in half (getting two 800x625mm sheets) or removing a 200mm wide strip from one side to have one full lenght sheet of 1250x600. I'm planning on rebuilding it to accomodate the full size sheet, but hobby-time has been quite limited recently.

/Jan

 

I do have something I would like to print and that is the internal wing structure of 5mm or 6mm depron. These will be very tedious to do even if I use my scroll saw. And I think I may need quite a few since I'm guessing the wing will require rebuilding during the test flight phase.

Also, they should be able to fit nicely in a small box. If you're interested I can make some DXF-plans for you?

 

That is exactly what the phlatprinter does. Removes tedious work and lets you do the fun stuff. Send me the dxf and we'll work it out.

 

Actually I think I will go with 2mm a steel axle since it weighs only ~1,5g for 55mm. Pictures will be up soon with the finished pod excluding its plastic shell. I haven't hade the "plug" for the gimbal yet.

 

I've now assembles the pod. It weighs exactly 42g which I think is acceptable. I had to reinforce the panning "disc" since it seemed to bend a little too easy, don't know if this is necessary though. Now I just need to shape some plastic and attach the panning servo!

Attached files

 

Just want to give you a preview of what the mailman is bringing tomorrow (if we're lucky).
Good luck with the project!

/Jan Attached files

 

My baby is ready to fly!

It weighs about 740g w/o any FPV-stuff. Also the main gear needs to be more rigid before a gimbal can be added. Now I just need to find a flat enough place for the test flights.

BTW, can the phlatprinter cut KYDEX-plastic?
http://www.knifekits.com/vcom/index.php?cPath=41_54 Attached files

 

SKP of camera mount, refer to PDF for features

Attached files Gimbalpod.skp (4 MB)Â