Official Dynam 1500mm B-26 Marauder Thread

[Kloverzero]

For the blue paper towel masking technique, I have developed a photo tutorial, as I get asked about it quite a bit. I first saw it here on the squawk, but I do not know what the post was now, it was over a year ago. But here you go.

These are what you need:

Blue Shop Towels (Lowes or Home Depot)
Roller Cutter (Walmart sewing/crafts section)
Rattle can paint
A tupperware bowl for water.
A metal straightedge (optional)



Using the roller cutter, cut the towel into 1/4 inch wide strips, then make larger strips to back up the skinny ones.



Dip the strip into water to soak it, then use your fingers to "squeegee" off the excess water, and put it on the surface to be painted.





Take your finger and run it along the edge to be painted, to seal the towel to the surface. Then use an excess piece of towel to blot the water away. Back up the strip with a wider piece of towel. Once you have a sufficient distance, you can use an old dish rag or bath towel to cover the rest of the part to avaoid overspray.



When you spray the paint, start from over the towel and spray away from the seam to be painted, to avoid leaching of the paint under the towel. If the situation will not allow this, hold the can as far from the surface as possible, so the spray stream is not strong enough to lift the towel.



Unmask the area immediately. Do not allow the wet towel to dry on the surface, or you will have a mess on your hands. That's it. Easy Peasy, no adhesive masking technique!!

[Kloverzero]

Looks good Kloverzero. My only suggestion would be to forget the magnets and go with servos on the bomb bay. That way you can close them.

Servos for the doors, the electromagnets will hold the bombs until I want to release them, rather than them just falling out when the doors are opened.

[Kloverzero]

Kloverzero the plane looks great. I have one on the way. Still haven't decided on a livery. I hope some day to do a bomb bay but will see.
Would you mind a short explanation of the Blue paper towel masking?

Sorry, I forgot to quote you in the blue paper towel post, check it out above.

[themudduck]

Kloverzero, your bird really looks terrific, I love the OD paintjob. I guess to save some time you could have masked off the original invasion stripes instead of painting over them and re-doing them... did you do it that way because you wanted to have brand-new stripes? They look great! The bomb-bay mod looks really good as well. Moving the servos out to the next bay rearward is genius. And I like the idea to drop the bombs via an electromagnetic actuator. That's good stuff.

We've had a great deal of discussion here about some important mods/fixes and I don't understand why you would purposely overlook all of it... just for the thrill of discovering these things on your own. For example, the tail weights. Anyway I wish you all the best, and I'm really glad that you had three good maiden flights! We sure don't want to hear that you've had a bad accident.

Please check your wing mounting pads (inside the fuselage) and the flap hinges... these can easily pull out.

[Kloverzero]

TMD, Even if I had come on here and looked, as an agent of the company, it is my responsibility to fly the model bone stock to give my feedback for the manufacturers benefit, to help move forward. I would not have done any of the mods before the maiden regardless of knowing about them or not. I did have a loose flap hinge out of the box, and I have pulled and re glued them all with Foam Tac to ensure they do not come loose again!! The mounting blocks for the wing seemed to be pretty secure, and I did some pretty aggressive flying on the second and third flights, so I think they are okay.

The factory invasion stripes were pretty weak, and they were glossy, I wanted them flat, and it is not that big a deal to paint them. (It also gave me an excuse to go get some more spray paint!!) As the stripes were painted in the field mostly with mops, or whatever they had on hand that could spread paint, I wanted to "imperfect" them some.

[rifleman_btx]

You dang sure hit that nail dead on... Dang good work. Oh and thanks for the conversation about the plane parts and what not. And as I finish that other project I'll have it posted in this section.. my n9mb is almost ready for testing. Just have to install the control surfaces. Anyway enough on the other projects. When you fly this bird. Give us the video! I'm looking forward to seeing it :)

[themudduck]

TMD, Even if I had come on here and looked, as an agent of the company, it is my responsibility to fly the model bone stock to give my feedback for the manufacturers benefit, to help move forward. I would not have done any of the mods before the maiden regardless of knowing about them or not. I did have a loose flap hinge out of the box, and I have pulled and re glued them all with Foam Tac to ensure they do not come loose again!! The mounting blocks for the wing seemed to be pretty secure, and I did some pretty aggressive flying on the second and third flights, so I think they are okay.

The factory invasion stripes were pretty weak, and they were glossy, I wanted them flat, and it is not that big a deal to paint them. (It also gave me an excuse to go get some more spray paint!!) As the stripes were painted in the field mostly with mops, or whatever they had on hand that could spread paint, I wanted to "imperfect" them some.

OK gotcha, I understand. Everything makes sense. And I love your paint job even with the imperfect stripes!!
I've used your paper towel technique using newspaper.

We found that the wing blocks were glued to the top edge of the foam, instead of on the bottom surface. The top edge is really thin and so the blocks pull upwards right into the bottom of the wing when you tighten the bolts. If you take the wing off you'll see.

See Post# 787 with a picture on page 40

[rifleman_btx]

Yeah and them pulling up wasn't planned by factory design I'm sure. And up pulling a fare amount of gs pull them loose pretty quick

[Bearcat]

PS---Anybody want parts?? Send me a Postage prepaid box and I'll fill it.

The cowlings I would take if they are in good shape!!!

send me a message..

[Bearcat]

There is one other mod I did to mine and that was to the Horizontal Stabs (Elevators) I used packing tape under each one to give it stiffness, I noticed some flex going on a few times but add the tape and flex is gone!.. simple and cheap and done..

[NoDirt!]

For the blue paper towel masking technique, I have developed a photo tutorial, as I get asked about it quite a bit. I first saw it here on the squawk, but I do not know what the post was now, it was over a year ago. But here you go.

Great. I had a feeling it was something like that but wasn't sure. Thank you sir!

[NoDirt!]

I placed an order to have the cockpit, sight and some extra guns printed. Hope they turn out well. I should get the plane tomorrow or Friday!

[CFIT rob]

Nodirt...Can you tell us the details up to this point on your 3D printed parts. Cost,printing material,How long to recieve,Who? And when you recieve them a review on fit,your impression and some photos.......and while im asking for so much, please send me the pony i never got for my 7th birthday.

[NoDirt!]

I used a site called Treatstock.com (recommended on "another" forum), then picked a printer based mainly on the number of reviews and distance - Humanisticnick's Printing Service in Pittsburg.

Plus when I contacted them they answered my questions right away.

For 1 cockpit (in gray), 2 bomb sights and 8 guns (2 sets of 4 in black) it cost $12.45 shipped which seemed reasonable. They are making them in PLA.

They said the sight has details that may not come out great but I figure it's behind the nose glazing anyway.

Not quite sure how long it will take but it showed a printing time of 28 hours :eyeswide

I'll post pics when they arrive.



Oh, and I'll see what I can do about the pony...

[warbirdbob]

Having given up on ever getting my 26 to fly even half decently, I'm scrapping the whole thing. I do, however, have a pretty decent fuselage if any one is interested in one, I'll send it for postage and a very friendly price. Just post to me of any interest. WBB

[themudduck]

[Dewey H Lee]

Noooooo. Not yours too.

[rifleman_btx]

I'm gonna keep on mine pretty hard, I need to keep her flying so when I get the f7f and replace the p38 I will have a very nice collection of twins

[CFIT rob]

Nodirt...Thanks for the info. Much less $ than i thought. Im sure you've read the posts about what to look for before and during assembly. Watch the motion build video. Check the glue on everything. I shimmed and glued my wing mounts with some 1/8 ply to keep them below the wing saddle surface, i left one weight in tail as my heavy CHL 4000 40c wouldnt cg(60mm) without it. Mine is flying very well with the elevator at 2mm up as my neutral. No stab mod.
Very excited about the pony...I'm calling him Mr wyld stallyon.

[Bearcat]

Having given up on ever getting my 26 to fly even half decently, I'm scrapping the whole thing. I do, however, have a pretty decent fuselage if any one is interested in one, I'll send it for postage and a very friendly price. Just post to me of any interest. WBB

what parts do you have?