Need advice

[Chris In Milwaukee]

I remember that the screws holding my router worked loose on my router table, causing my router to lean into the cuts a bit, cutting into my forms while cutting aileron ribs. I tightened up the table and re-cut about six ribs. I also remember when my router got "grabby" and got a bit out of control. It wrecked my routing form nose-rib lightening hole as well as a half dozen nose ribs. Remade those, too. And had to fix the forms, too. Just a couple of the things we learn while making airplane parts!

Take a deep breath, take a close look at what happened, and learn from it. And most importantly, have fun!

[BTAZ]

Until I learned the right amount of pressure to use when holding the form/blanks against the router(basically tightly control the stack when initially feeding it in and only guiding pressure once the router is pulling it against the bearing) and to limit the number of blanks to around .060" max thickness) I went through a few router guide bearings which, when they failed, ruined the blanks and routed into my forms.

I used a 5 minute epoxy/MDF sawdust paste to fix the forms and continued on.

Education isn't free.

[MNBenny]

Can anyone tell me if in there plans there is drawing talking about the false spar in the fuel tank area? I can't seem to find anything on it in the drawing. Also what about a template for the false ribs in the fuel tank area?


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[MNBenny]

BTAZ where do you find that MDF/epoxy paste? I never heard of it


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[Chris In Milwaukee]

You'll need to make your own. Grab some 2-part epoxy from the hardware store, and then mix in some MDF sawdust until it's the consistency you're after. Then smoosh it where it needs to be smooshed. Sand to your liking, and you're back in business!

~Chris

[MNBenny]

I got some T-88


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[Chris In Milwaukee]

That'll work. It'll take a little longer to dry, but T-88 will do the trick just fine.

[tbaylx]

I checked out the pictures on your facebook page. I think those are beyond epoxy repair. Use your master template and router to make some new ones.

[Deftone]

I checked out the pictures on your facebook page. I think those are beyond epoxy repair. Use your master template and router to make some new ones.

I agree, the templates are way beyond repair. I made my previous comments on repair before looking at the pics. Using your master to make a new template shouldnt be a big deal, but you may want to think about what happened to cause this damage first, so you dont do the same to your master.

Looking at the pics...how did you manage to do it without noticing? Did you not have the router bit bearing running along the template? I also would have thought it would have kicked up a bunch of dust for taking off so much material.

[MNBenny]

@alaskabearhawk

my email address is [email]ben.ramler2010@gmail.com


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[MNBenny]

Hi everyone got some more ribs cut. I have another question. How many trailing edge ribs are there for the flap and the aileron? Anybody have a guess?



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[Chris In Milwaukee]

I wouldn't guess. The wing plan shows you how many there are. It's one of the first five sheets in the plan set. It shows the whole wing with ailerons and flaps.

[MNBenny]

Anyone know if dewalt makes a 2000+ rpm drill at all or maybe I do have to look a neumatic drill


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[Gavin Chester]

Makita makes a 4500 rpm 1/4" electric drill with a built in adjustable depth stop, model # 6501 It is small and light with a thin flexible cord.

[MNBenny]

I have a youtube video where I did the rubber mat method to form my lightening holes. I have some other videos on how i built the wing on my patrol. Do a search for N3UW on youtube or find them. where is the rubber press video.

john snapp

Hey John would you recommend I look at buying an air compressor and start buying pneumatic tools?


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[N3UW]

I personally like pneumatic tools but you do not have to have the air drills. You will need a small compressor for a rivet gun. You can use a battery drill but a good air drill, like a sioux that I use, are lighter and easier use for extended use.

[Chris In Milwaukee]

Anyone know if dewalt makes a 2000+ rpm drill at all or maybe I do have to look a neumatic drill


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. In electric corded, yes. Cordless, probably going to be a bit slower. Home Depot shows them up to 1500 in cordless, 2500 in corded electric.

Pneumatic drills weigh less, for sure, but if you don't yet have a compressor, then it'll be an expensive drill. . But you'll need a higher-volume air source eventually, anyway. Just depends on when you're ready to invest.