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Author Topic: Covering plans  (Read 1055 times)

Offline Steve Tomlinson

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Covering plans
« on: November 23, 2019, 04:04:31 PM »
Like most, I cover my plans prior to building so I can pin directly over for rib placement etc. 
CA seems to always find its way to wax paper and get glued to the wing!   
Is there a better way? 
Don't want to buy a jig....
STEVE Tomlinson

Online Dan McEntee

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Re: Covering plans
« Reply #1 on: November 23, 2019, 04:42:12 PM »
  Depending on the size of the joint, you might be surprised at how well rubbing a bar of soap on the plans at the glue joints works. I do that a lot with rubber powered model construction. Wax paper will protect the entire plan, but maybe try rubbing some soap at the glue joints for a little extra help.
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Offline Tim Wescott

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Re: Covering plans
« Reply #2 on: November 23, 2019, 09:25:06 PM »
For stunt, don't use CA on joints that are exposed to the outside of the plane.  It makes a rock hard joint that's impossible to sand smooth.
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Offline Curare

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Re: Covering plans
« Reply #3 on: November 25, 2019, 04:11:27 AM »
You're not building on glass? Oh dear!

These days I don't really build off plans (having experienced interesting variations in dimensions as a draftsman, caused by out of whack printers) I just Blu Tack the plan to my workshop wall, and take reference dimensions ofd that, and work out what needs to go where, either on the glass, or on the sheets of wood themselves. masking tape on the glass makes for easily removeable stips to draw on, and when you're done just scrape the glass, (including all the gobs of CA, epoxy and other snot) and clean down with actone or a similar solvent, and it's ready to go for the next round.

If you have an automotive or marine glass shop nearby, ask if they have any incorrectly shaped TSG (toughened safety glass). Once it's tempered it can't be reshaped and is a throw away item. I got a pane out of a bus that was for free and it's 4'x3'. more than big enough for most work.
Greg Kowalski
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Offline Mike Griffin

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Re: Covering plans
« Reply #4 on: November 25, 2019, 04:04:47 PM »
I agree with Walter.  The Wax paper today seems to not be the wax paper we used to get.  I use Parchment paper as well and have ditched the CA and use Elmers white glue for pretty much everything.  There are rare instances where I might us CA but not many.  I do not like how my eyes and nose react to it.

Mike

Offline Steve Tomlinson

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Re: Covering plans
« Reply #5 on: November 26, 2019, 11:01:40 AM »
Thanks Guys   appreciate info and glass comment...Agree esp with the comment about ca near exposed areas...impossible to sand....   still love Titebond BTW .....and grew up on Ambroid! :)
STEVE Tomlinson

Online Ken Culbertson

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Re: Covering plans
« Reply #6 on: November 26, 2019, 12:06:43 PM »
Thanks Guys   appreciate info and glass comment...Agree esp with the comment about ca near exposed areas...impossible to sand....   still love Titebond BTW .....and grew up on Ambroid! :)
I am impatient when it comes to building.  Love building but hate waiting for anything to dry.  CA is the glue from heaven for me.  Wear a mask and use very thin glue tips and you can keep it off of the exposed areas fairly easily.  A fresh piece of cutting grade 400 on a block with light pressure sands it without creating a ridge pretty easily.  Another plus for me is de-bonder.  What do you do when you mis-glue with Elmers after the swearing subsides? ~^

Ken
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Offline Randy Powell

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Re: Covering plans
« Reply #7 on: November 27, 2019, 10:37:33 AM »
I'm always amazed at the problems people create. I use CA on external joint and have no issue sanding them. I use a jig so I don't have the plan issue.
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Online Ken Culbertson

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Re: Covering plans
« Reply #8 on: November 27, 2019, 11:35:40 AM »
 
I'm always amazed at the problems people create. I use CA on external joint and have no issue sanding them. I use a jig so I don't have the plan issue.
y1
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Offline Mike Haverly

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Re: Covering plans
« Reply #9 on: November 27, 2019, 05:26:05 PM »
I'm always amazed at the problems people create. I use CA on external joint and have no issue sanding them. I use a jig so I don't have the plan issue.

Me too, I can't remember the last time I pinned anything to perfectly good paper.  Build on glass, and or a jig.  Hang your plans on the wall and they will last as long as you want.
Mike

Online Dan McEntee

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Re: Covering plans
« Reply #10 on: November 27, 2019, 07:40:01 PM »
  If you have a lot of trouble with plans sticking you are probably using too much glue.  If you see glue of any kind outside the joint it's probably too much. The soap trick work very well if you can avoid excess glue. Too much glue is extra weight especially with CA type that don't gas off, and especially on free flight models. If a glue joint pops loose it probably was fitting as well as it should have. That's where building free flight models, even simple sport models, can help your building technique.
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  Dan McEntee
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Offline Curare

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Re: Covering plans
« Reply #11 on: November 29, 2019, 05:05:43 PM »
Dan, I agree wholeheartedly, if you want to get better at building, build some small stuff!

With that said, I rarely glue the model to the plans from too much glue, it's usually because I'm a klutz and have knocked over a bottle of glue had my CA pipette roll away, or some other stupid thing. Having a bit area to make a mess on saves my bacon more times than I'd care to admit!
Greg Kowalski
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