I was very concerned about using my hands to cut a straight line at a consistent bevel angle, so I took the trouble to haul my table saw out to my build site. I was glad I did. Set the blade at the correct angle, mark the diagonal cuts and away you go. The edge bevels in particular are no-brainers, since the fence can be set once (right next to the blade) for dozens of cuts.
For the diagonal cuts, you do need a steady hand and good eye to cut a straight line 9' long in the middle of one of those panels. That's a situation where it might be better to use a long-bladed jigsaw and a long (> 9') straight piece of board, metal or angle-iron for a guide--the problem being where to rest the panel and still give the saw clearance on the underside. Makes a pile of nasty poly-iso dust (DO NOT try to cut poly-iso edges on-playa. There WILL be flyaways, to say nothing of the anguish of such work in that situation), and isn't too kind to your saw blade (get a disposably cheap one), but for sweet manufacture it's hard to beat. Cheers, Steve On Jul 30, 2013, at 5:23 AM, Vladimir Khodel <vkho...@gmail.com> wrote: > Fine Homebuilding magazine had a reader tip a few years ago :) which was to > take a 4" putty/taping knife and sharpen its outside curved edge - then you > hold it like a kitchen knife and pull towards you along a guide such as > bevelled at 60 degrees 2x4, and it cuts polyiso like butter in a couple of > passes :) > > This can probably be used even on the playa, since there is no moop at all > (well, I guess there are polyiso bevels to get rid of) > > When making sharp or rounded corners there is still some need for a snap-off > type knife of course, but very minimal. > > Good luck! > > Vladimir > > > On Mon, Jul 29, 2013 at 8:53 PM, Jay Batson <batson...@gmail.com> wrote: > Hi - > > Building my first HYurt, and have been reading all the right stuff / watching > all the right videos (e.g. appropredia & Danger). > > BUT - I'm puzzled about one thing: what kind of tool to cut with? > > The only Rmax available in my region is the 2" stuff, and that seems pretty > thick to cut through. I'd have thought to buy one of those utility knives > with the retractable / extendable blades, but the only ones I see at Home > Depot are the ones that have a tip-snapoff to give you a new sharp bit at the > front, and I'm thinking those might just break when trying to cut a rounded > door / window corner. > > I'm also assuming that: > - A bigger knife might be too thick in trying to cut through the foam, and > bind up when cutting; > - A drywall saw will take away too much material, nor will it make a nice > clean cut. > > So, what do people use for the 2" foam? > > Call me curious. > -jb > > -- > You received this message because you are subscribed to the Google Groups > "hexayurt" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to hexayurt+unsubscr...@googlegroups.com. > To post to this group, send email to hexayurt@googlegroups.com. > Visit this group at http://groups.google.com/group/hexayurt. > For more options, visit https://groups.google.com/groups/opt_out. > > > > > -- > You received this message because you are subscribed to the Google Groups > "hexayurt" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to hexayurt+unsubscr...@googlegroups.com. > To post to this group, send email to hexayurt@googlegroups.com. > Visit this group at http://groups.google.com/group/hexayurt. > For more options, visit https://groups.google.com/groups/opt_out. > > -- You received this message because you are subscribed to the Google Groups "hexayurt" group. To unsubscribe from this group and stop receiving emails from it, send an email to hexayurt+unsubscr...@googlegroups.com. To post to this group, send email to hexayurt@googlegroups.com. Visit this group at http://groups.google.com/group/hexayurt. For more options, visit https://groups.google.com/groups/opt_out.
