By continuing to use this site, you agree to our use of cookies. Find out more
Forum sponsored by:
Forum sponsored by CML

Valdez Stol Record breaker build blog

All Topics | Latest Posts

Search for:  in Thread Title in  
Steven Shaw06/06/2019 17:52:39
avatar
303 forum posts
163 photos

It looks like you're planing on inserting the battery from the rear of the cabin. I'm just getting ready to cut my formers out, but I think I will start on the wing instead until I see what you end up with.

Also are you going to add the motor 3D files to your link? It looks like something that I would like to put onto the front of my Li'L Cub.

Tim C10/06/2019 11:07:22
avatar
484 forum posts
253 photos

Having completed the dummy motor, attention has been focused on fitting out the wings and airframe.

I had moulded the slats a few weeks ago, my first attempt ended in failure as it delaminated due to insufficient glue. For the 2n attempt is used 1 x 1/16 and 3 x 1/32, it’s thinner than Peters plan, but laminated is plenty stiff enough, it the slot gap which is important more than the aero shape, after a bit of planing and sanding, the final shape is emerging. I used Titebond glue, leave plenty of time to dry before removing. These come in at 23g each, it the weight of the glue!

I printed up the 10 slat fixings on the 3d printer, to get the exact wing LE profile, I’d traced round the wing profile, scanned the image into inkscape, and created a 2d outline, the SVG file was then exported and imported into 123d and the 2|d shape made into a 3d object, the whole process took no more than 10 mins, I just then printed out 10 fixings, they are hollow and weigh about .3 gm each.

slat fitting.jpg

Slat fixings

slat test.jpg

slat trail fitting, final sanding and finishing still to do, undecided about what glue to use, cyano works well for pla to balsa as does Kaufner 2 part Acrylic glue.

Peter Miller10/06/2019 11:13:03
avatar
9929 forum posts
1160 photos
10 articles

THat saved an awful lot of sanding and checking and sanding and checking.

I have a Dremel Idea Maker.Never managed toi get it to do more than print out some pilots.

At least it was a freebie!!!

Martin McIntosh18/06/2019 19:53:51
avatar
2834 forum posts
1050 photos

Peter, I am building one and have started a thread under `Li`l Cub`. The slat layering puzzles me since I have now seen reference to three combinations of 1/32 and 1/16 balsa, none of which correspond to the thickness shown on the plan, so what did you actually use please?

Peter Miller18/06/2019 20:50:33
avatar
9929 forum posts
1160 photos
10 articles

Hi Martin

Yes,the magazine plan was wrong, I missed that when proofing the plan.

I used 2 layers of 1/32" sheet and three of 1/16" sheet. Tim is using a slightly different combination.

He seems happywith hist,I liked mine but Iknow that one could use four of 1/16".I think my original gives a better sharp edge ar reg slat trailing edge

I hope that helps

ACtually my instructions are correct in thex magazine

Edited By Peter Miller on 18/06/2019 20:51:21

Martin McIntosh19/06/2019 09:16:37
avatar
2834 forum posts
1050 photos

Thanks Peter.

All Topics | Latest Posts

Please login to post a reply.

Magazine Locator

Want the latest issue of RCM&E? Use our magazine locator link to find your nearest stockist!

Find RCM&E! 

Support Our Partners
CML
Pepe Aircraft
Slec
Revoc
electricwingman 2017
Gliders Distribution
Wings & Wheels 2019
Motion RC
Sarik
Advertise With Us
Latest "For Sale" Ads
Does your club have a safety officer?
Q: Does your club have a safety officer, or is the emphasis on individual members to each be their own safety officer?

 Yes we have a SO
 No, it's down to everyone

Latest Reviews
Digital Back Issues

RCM&E Digital Back Issues

Contact us

Contact us