You can get the Clearly Perfect Angles from New Leaf Stitches.
Very similar to the Angler. I have one and I've used it
to makes lots of HST's for one project. It goes faster but you have
to get used to it. To be honest I think I still prefer marking...a little
more precise.
Edit: I used it on my Janome 6600 which has a drop it bobbin.
You have to make a cut out around the bobbin case.
There are instructions online.
Last edited by EasyPeezy; 09-10-2016 at 12:54 PM.