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Posted by 7up | Nov 02, 2013 @ 01:24 AM | 15,568 Views
Inspired by a Adam Woodworth design. Full credit to him.

Here is the Half Pint Cub almost complete. Built from DTF foam and covered with gift wrapping tissue paper from the Dollar Store. I still have to add some landing gear and maybe some paint. 17.5" wingspan and dry weight of 0.6 oz or 17 grams. It should weigh in at under 1 oz when completed.

I used Elmer's white glue for everything and used a 50/50 glue and water to apply the covering. Bambo skewers for wing spars, hot glue hinges.. Gonna have to acquire some micro gear or maybe I'll add a rubber power motor and go free flight...?


-...Continue Reading
Posted by 7up | Sep 28, 2013 @ 07:03 PM | 15,965 Views
Well the parafoil I bought off the forum but everything else is from scratch. All Dollar Tree Foam laminated. Apple Barrel paint and covered in packing tape.

Skewers to keep things straight and a paint stirrer along the bottom to keep it rigid with abour 2" sticking out the front to mount my 808 cam.

It's my understanding that this parafoil flies good with a 23-25oz load. With the electronics and a 2S 2200 I have the gondola at about 20oz.. I made a place on the upright for a larger camera so I should be able to meet my goal weight easy enough.

As soon as I untangle all the lines and get them cut to length I'll give it a try and report how it went.

Posted by 7up | Jul 18, 2013 @ 07:09 PM | 16,033 Views
Lying here with nothing but time on my hands I have a few rescent pics (took a few weeks back) and figured I'd post em'.

This is my most rescent build, The Slowly. An old timer style foamie built from 3/16" DTF (dollar tree foam) or Readi Board. I didn't document the build only the end result. I will be building a bigger, better (construction wise) in the near future. I'm not sure if you can tell in the pics but the next day after I got the fuse completed I stumbled in my shop (spare bed room) and as I threw my hands out to catch my fall my hand landed on the back section of the fuse and smashed it flat. Not wanting to waste any more foam on a damaged plane, I pieced it back together as best I could with scrap foam, popscicle sticks and hot glue. Despite that it still only weighed in at 12oz exactly, battery included.

Did a quick paint job with cheap Apple Barrel acrylics, which I brushed on with a foam brush and achieved great results. I like the coverage you can get with tne foam brush over air brushing. Seems like it takes several coats with the airbrush vs brushing.

WS: 40"
Length: 37"
Motor: 24g BW 1300KV
Prop: 8x4 GWS
Batt: GensAce 2S 850 mah 20C
ESC: Unknown 10-12 amp
Servos: 2 - TG9 9 gram
RX: GWS micro 4 ch. 72mhz
AUW: 12oz RTF
Wing Loading: 4.67 oz./sq.ft.

Posted by 7up | Mar 27, 2013 @ 05:23 AM | 20,376 Views
For prosperity I uploaded the Free Version of Sketchup 7.1 along with the DXF Import plug-in to my Google Drive so it can be found easily in the future. Below are the links.

SKETCHUP 7.1 (Free Version)


Posted by 7up | Jan 24, 2012 @ 08:52 AM | 21,575 Views
I caught these vids here on RCG and it looks like a fun slow flyer. I designed for outdoor flying, but it can be trimmed down to make a good indoor flyer. The current WS is 30" without the polyhedral tips and it has an under-cambered rolled airfoil.

The cut files are for 1/4" foam, 1/8" bit, and original Phlatprinter. Regenerate the gcode for over-head gantry if needed.

I also included files for optional KF step panels and Floats/Skis.

It will be a while before I can cut this plane, so if anyone tries it, please post here.

I'll add PDFs soon.

Magnum Reloaded in Action (2 min 27 sec)

Another video:

Update: Plans

Posted by 7up | Dec 12, 2011 @ 04:11 PM | 19,445 Views
Working on a "stubby / sporty" Cub... I'll post plans soon. 40" WS with built-up Clark-Y airfoil and optional flat wing with KF airfoil.

Posted by 7up | Jul 22, 2011 @ 08:54 AM | 28,506 Views
Any donation greatly appreciated, Thank You.

Yes, I know, another profile 3D plane . I worked this plan up for a guy who wanted some CNC cut, but due to some health issues I haven't been able to cut them, but the plans are done and no need for them to go to waste. Maybe someone can use them.

Your choice of 1/4" / 6mm foam, tab and slot construction, carbon fiber where needed, you know the routine.

Oh yea, the air-brakes are optional. If not desired, don't cut out the two slots on the trailing edge of the ailerons.

Now, back to my airboat.

UPDATE: 8/10/2011

Some build pics --> http://www.phlatforum.com/viewtopic.php?f=34&t=2945

UPDATE: 8/13/2011

Video: Pilot and builder, popedan on the forums, Thanks! -->
piaget 3d (3 min 32 sec)

UPDATE: 8/14/2011

Added exploded view.

UPDATE: 8/18/2011

Added plans for 16.5" Micro Piaget as requested.
Plans are for 1/8" or 3mm foam.

UPDATE: 8/23/2011

Added Sketchup files.

-Buk...Continue Reading
Posted by 7up | Jun 13, 2011 @ 03:08 PM | 34,954 Views
Any donation greatly appreciated, Thank You.

Not a true airboat, it can't glide out of water due to the rudder, (I have trucks for that) but it can easily be modified to a high rudder if you like. I finished this up last weekend and plan on cutting it out this weekend. This is a prototype for the big one I am going to build. I have a 26cc gas engine to strap on it.

Designed for (2) 24" x 48" x 1/4" fan fold foam sheets.

Length: 24"
Width: 14"
Hull depth: 2"

Power: I'm gonna try a TowerPro 2408 or 2410 type bell brushless, (what I have on hand) just as a starting point and maybe a 8-10 inch SF prop then ease into a higher KV motor and a HD prop.

Have fun and please post all your improvements.

Don't forget to water-proof your gear and battery inside a balloon or condom and close up the open end around the wires with a zip-tie.

UPDATE: 06-28-2011

Made some minor changes and uploaded new SU and CNC files. Also updated the PDF files.

UPDATE: 07-23-2011

Ongoing build log --> HERE
(You may have to register)

-Buk...Continue Reading
Posted by 7up | Jun 02, 2011 @ 04:11 PM | 22,038 Views
Seems like I post this diagram quite often, so I thought I'd just post it here and link to it.

The diagram tells the whole story. Very simple and cheap to build with parts you probably already have lying around.

As for the hot(wire) itself, everything from stainless steel fishing leaders to guitar strings to small steel push-rods (piano wire) have be used with great success. Personally, I use nichrome, but that's just because I had a good supply of it on hand and have never had any trouble with it.

This are many other ways of powering a hotwire, this is just a quick, nasty, throw-together conglomeration that works in a pinch.

Posted by 7up | Mar 18, 2011 @ 11:47 AM | 22,985 Views
Any donation greatly appreciated, Thank You.

Discussion and semi-build log HERE.

30" bi-plane, very slow flier, good candidate for AP/FPV or water plane.

Good CG starting point is 3.5" from leading edge of top wing.
Sketchup files available at the phlatforum.com.

To be continued...

Another JOP thread at the Phlatforum.
Posted by 7up | Nov 12, 2010 @ 01:35 PM | 24,614 Views
I am the proud owner of a Phlatprinter CNC Machine and I am offering my cutting services. I will cut your own designs, prototypes, or any FREE FOAMIE plans that may be available to you on the internet or elsewhere. Or if you have an idea for something, give me shout.

The only foam readily available to me is 1/4" or 6mm fan fold foam so, at the present time, that is all I am cutting.

The cost is negotiable per 22" x 42" sheet plus shipping. Only the cut-out parts will be shipped, not the entire sheet(s). This will reduce package size and shipping costs. The price includes the foam, my cutting services and my time spent converting and coding your plans (PDF, DXF, SKP, BMP, etc.) to be cut.

I can also cut other things as well as planes. I am doing this as a hobby to help support my RC habit. I am not equipped to do this commercially nor do I have a website. Just trying to make a few extra bucks.

If interested, drop me a PM.

Please keep in mind that I am not charging for anyones designs, only my cutting services and what material that I use.

A big thanks to miamiracer305 for the much needed compilation of "Pics & Plans" which is now a sticky. Most all these designs are free to the public, so have a look...

--> HERE <--.
Also check out...
--> Free Plans <-- section over at the Phlatforum.

Note: Price subject to change with fluctuation of material cost.

Many thanks,


[EDIT 12-16-2010]
Also Cutting EPP

Satisfied customers
More satisfied customers

Price negotiable.

Feel free to contact me via PM or email with any questions...

7up.buk (at) gmail (dot) com


Posted by 7up | Oct 12, 2010 @ 06:05 AM | 24,117 Views
Any donation greatly appreciated, Thank You.

I've always liked the Cap232 so I decided to design a 30" foamy version. I have it worked up in SU for cutting on my Phlatprinter and I'll be posting those files over at the Phlatforum free plans section along with the graphic scheme scheme as soon as I do some glide tests for CG and make any changes if needed.

I'll also be posting the full and tiled PDF plans here in my blog when complete.

All common foamy equipment, of course the lighter your equipment the better. This is just what I have on hand.

Blue Wonder 1200-1500kv
8x4 - 10x4.7 slowfly prop
2s 500-1000mah lipo
5g-9g servos
4 ch. micro rx

A few pics...

[Edit 10-14-2010]

Sketchup files available at the Phlatforum. PDF will be posted soon.

[Edit 10-15-2010]

PDFs available below. For more info and build log visit the Phlatform.

Due to the size of the PDF files, I am unable to upload them here but you can get the PDF full sheet, tiled sheets and the paint scheme also in tiled version, ready to print at the above Phlatforum link.

[Edit 10-21-2010]
Last 3 pics are after the build but I haven't had a chance to do the graphics yet.

[Edit 10-25-2010]

Added full sheet plans and paint scheme, tiled PDFs available at the Phlatforum....Continue Reading
Posted by 7up | May 15, 2010 @ 09:43 PM | 24,106 Views
Any donation greatly appreciated, Thank You.

Someone requested a PDF of my PhlatJak so while I just converted it I figured I may as well post it here also.

Sketchup files can be had at the Phlatforum under the "Free Plans" section.

I updated the PhlatJak PDFs with cleaner files.
Posted by 7up | Apr 01, 2010 @ 11:35 AM | 25,289 Views
I bought a bundle of the Green Guard FFF at Lowes and decided to try it out on a Lazy Bee that I've been working on in Sketchup.

This was designed in Sketchup along with the paint scheme I used and with the Phlatscript plug-in I output the designs to gcode which aloud me to cut all the parts out on my Phlatprinter.

The paint masks I used were also cut on my Phlatprinter. I cut them from an old cardboard box that I broke down until it was flat and some scrap pink foam I had lying around. Mind you, this was an experiment and learning experience for me. The masks came out great but my painting skills need some work. Next time I will secure the masks to the foam instead of just holding them up to the foam and spraying away. BTW, I uxod Krylon H20 spray can paints.

The Foam
It is comparable to the OC Pink but not as brittle. It is flatter than the Blue or the Pink. It cuts very well in my Phlatprinter and by hand. I doesn't take much heat so use a low temp glue gun or keep the tip of you gun from making contact with the foam. Hot glue bonds really well to it.

It is fairly flexible but not as forgiving as the blue. It comes with one clear side (no printing) and on printed side. For my Phlatptinter I cut with the printed side down. I works for me. Dust from the cutter is not a problem

If you need to make bends, the "counter top edge rub" works pretty good but if you are going for are tighter radius I suggest fold lines, also called score marks or bend lines. Either...Continue Reading
Posted by 7up | Dec 17, 2009 @ 01:42 PM | 24,670 Views
Any donation greatly appreciated, Thank You.

28" should be fun on the snow or scale it down for some combat. Something different at the field.

Multiple cross section lines on the two skids in the plans are reference for score marks. They may not be needed to bend the foam to shape. Use your own judgment.

Applying plastic (2 liter pop bottle) to the bottom of the skids makes for a nice slick service on snow.

Designed for 1/4" FFF. SU files --> HERE <--
Support your local biker, fly a Harley!
Posted by 7up | Dec 15, 2009 @ 08:57 AM | 25,153 Views
Any donation greatly appreciated, Thank You.

Typical Ultimate, just built a little different. Designed for 1/4" FFF.

Sketchup and CNC files available at www.phlatforum.com in the "Free Plans" section.
Posted by 7up | Dec 15, 2009 @ 08:45 AM | 26,172 Views
Any donation greatly appreciated, Thank You.

My revision of the Fold Timer for 1/4" FFF. Thanks to Dan, aka Hippo at FoamFly.com for his inspiration.

Sketchup and CNC files available at www.phlatforum.com in the "Free Plans" section.
Posted by 7up | Dec 22, 2008 @ 08:39 PM | 25,580 Views
This is one of my designs. It was cut on the Phlatprinter, www.phlatboyz.com

Thanks to Crash-man for his help in cutting this out for me.

I have it all together, took about 10 minutes, but have not added electronics yet.

Wingspan: 40"
AUW (dry weight) 13.5 oz....Continue Reading