How do I mark 1/64"? With a Sharpie!I see the crazy tolerance markings all over the plans, but they are fun to try to and achieve. So how do you mark 1/64"? Mid point between the 1/32 marks.
<SNIP> Anyway - most engineers don't have a sense of humor about dimensions no matter how precise they might be.
Hi Rob,
I see in you video that interpret the term "typical" specified in the plans as meaning "approximate". This is not the case. In this type of engineering drawing, typ, or typical means that this measurement is common to all relative sub sections of a part. This is commonly used when defining rivet pitch, or distance inboard from an edge, as can be seen in the examples below, rather than having to specify a measurement for each position. You are not alone with this misunderstanding, as I have seen others on this forum make a similar mistake in the past, so I'm just trying to give you and others a heads up.
Regards,
Tom.
The Xenos we're building has all dimensions to the nearest 1/64th - and if you hold to those tolerances, things fit together beautifully. The typical Sharpie line is about 1/32" wide ...
OMG I feel so old. Not one mention of a rivet fan so far. That was a basic tool for us non-PP builders. No need for tolerances. Just even spacing that found all the tabs and missed the flutes. Kids...
You know who I thought about at that moment. Paul Poberezny and Tony Bingelis and all those people who built -- not assemble from kits -- airplanes.
Disclaimer: I'm a buyer, not a builder. I'm also "work with wood".
The default marking tool in my shop for the past decade has been 0.5mm mechanical pencil. Unfortunately it's not great on aluminum or polycarbonate.
It's a bummer when the construction tolerances exceed the marking device
Yeah, Avery and Cleaveland used to sell a bunch of them before the pre-punched kits came along. Sometimes I wish I had one, but I hardly ever see one for sale.
So how do you mark 1/64"? Mid point between the 1/32 marks.
Incra ruler. The page shows them using 0.5mm pencil in the holes and it's difficult to find a pen in that size but the but the edges are also scalloped at the markings and a scribe fits in there just fine. No harm in scribing where you are going to cut or drill anyway.
If you own one of these, you know that they are not that accurate between centers........
They just work, and really cut down layout time...... it is fun to build this way....
OMG I feel so old. Not one mention of a rivet fan so far. That was a basic tool for us non-PP builders. No need for tolerances. Just even spacing that found all the tabs and missed the flutes. Kids...
They do quite well - as long as you remember to use a Sharpie in the holes and not a drill bit.