Simple question

[soccerguy83]

I know this may sound really elementary, but for the life of me I can't come up with good answers. In starting to lay out my tank cuts, how can I make the following marks accurately?

A straight line at TDC from one end to the other, best I have come up with is find the TDC and then measure up from an existing seam and make the same measurement at the opposite end. This assumes that the seam is straight and even.

Marking a horizontal line on the curved bell of the end of the tank to make the top of the firebox cut.

In general straight lines on curved portions of the tank.

Thanks in advance.


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[Rodcrafter]

I use an centering tool. I know not everyone has one but it is great to make marks then draw lines. They can be parallel to each other and be straight with the tank. Main thing is to secure the tank and level it then go for it.

https://www.google.com/aclk?sa=l&ai=DCh ... IDg&adurl=


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[soccerguy83]

Thanks Rod! How about the horizontal on the bell end of the tank?

[Rodcrafter]

You can use that same tool to stitch mark that line also then use a wrap-around to connect the dots. Level the tank and secure it in place first then you can do whatever you want.

You would just set it on 90*


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[Dirtytires]

Thanks for sharing rodcrafter...you just introduced me to another tool that I am going to have to purchase.

[Pete Mazz]

You can take a piece of scrap and tape or clamp a marker to it. Level the tank on the floor and attach the marker from the end of the scrap the distance you want. Scribe a line across the bell end by dragging the scrap/marker along the floor. For marking the circumference, use a roll of butcher paper or such and wrap it around the tank. Align the edges when they overlap and mark.

[Rodcrafter]

That Pete has skills!


Making memories!

[soccerguy83]

Thanks guys, y'all have given me several ideas!


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