Cutting out the pieces

Filed under: Frame and Chassis — Chris at 1:51 pm on Sunday, March 4, 2007

A good bit of work, but not much to show for it. I’ve roughly cut out the first two pieces, and in doing so I can tell pretty clearly that I currently lack the skill to do an accurate cut with the plasma cutter. Even with wheel guides on the torch head, I can’t move my hand steadily enough to prevent skips (where the torch does not cut all the way through) or re-welds, and I doubt I’d be able to follow the line perfectly. This is a shame, as I’ve found the cutter produces a surprisingly even and precise edge with very little slag underneath, if it’s moved smoothly. This cutter can be upgraded internally for machine control (CNC); I’m really wishing I had space for an X-Y table.

Alternatively, what I could really use right now is a metal-cutting bandsaw. I have one that belongs to a friend, but it’s not made very well and despite attempts to adjust it, it’s developed a habit for throwing the blade — every few seconds. It’s probably not really up to the task, and I’m reluctant to drag it out of the attic just to realize that it’s worthless. I may end up using a jigsaw, but I really don’t like that idea either.

Anyway, here’s what I’ve got so far.

2 Comments »

676

Comment by John

March 12, 2007 @ 11:58 am

Actually for 1/8 stock a good jigsaw with some good blades should be able to clean up what you’ve got, then dress it up with a grinder.

677

Comment by Chris

March 12, 2007 @ 12:06 pm

I hit it with a decent new jigsaw blade, and it cut ok, but it was taking a *long* time … less than an inch per minute as I recall. Fortunately, a friend had access to a decent bandsaw, and was able to take care of the trim work.

At the moment, the problem is that I messed up the measurement in one particular part of the shape, at the front where it meets the frame. I think I can still recover from it though. As I’m in Dallas this week it’ll probably have to wait for the coming weekend.

RSS feed for comments on this post. TrackBack URI

Leave a comment

XHTML: You can use these tags: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <code> <em> <i> <strike> <strong>

This is a captcha-picture. It is used to prevent mass-access by robots. (see: www.captcha.net)

You must read and type the 5 chars within 0..9 and A..F, and submit the form.

  

Oh no, I cannot read this. Please, generate a