chris_c wrote:dvgrn wrote:I'd be tempted to build an edge-shooter with adjustable clearance, though of course it would be bigger than your version: build a clock and a spark-making bait by colliding an LWSS with some number of gliders, and then send the trigger glider in at the right time.

Woah, sounds scary. I have never been able to find any clock syntheses except for the symmetric one with 6 gliders. Making a clock with only LWSS and gliders and then triggering it sounds hard indeed.

Well, yes. But not impossible, and an edge-shooting clock factory would be kind of nice to have.

There are clock recipes that amount to just blinker + preblinker + preTL, so at worst it could be done with an initial LWSS plus a slow salvo, to build and trigger a small clock-seed constellation:

`x = 17, y = 17, rule = B3/S23`

12bobo$12b2o$13bo2$3b3o$15b2o$14b2o$16bo3$3b2o$2b2o$4bo2$2o$b2o$o!

If there's a slow salvo involved it would be a pretty silly-looking edge-shooting factory, I suppose, and would have a horribly high recovery time. But maybe a better idea will turn up.

EDIT: A quick look at Catagolue turned up a rough upper limit for the complexity of a slow-salvo clock recipe. I don't really know how many gliders this would translate to, but it would be a two-digit number anyway:

`x = 20, y = 23, rule = LifeHistory`

13.2A$12.A2.A$12.A.A$13.A$16.2A$16.2A$9.A$8.A.A$8.A2.A$9.2A4$18.2A$

17.2A$2A16.A$2A5$11.2A$11.2A!

chris_c wrote:In terms of Cartesian co-ordinates my script uses a slope of 1 in 3 and I consider this to be the cleanest way of doing things because of the existence of the following 4 glider inserter...

EDIT: P.S. Cartesian slope 3 simply corresponds to a one tick advancement for each lane. Slope 2 corresponds to 2 ticks advancement every 3 lanes. That is another reason I favour slope 3 over slope 2.

Thanks for the pointer. I'll try reworking my minimal enumeration of cases with a 1-in-3 slope. Hopefully there's some more beautiful simplicity to be found there... there certainly didn't seem to be much of that at 1-in-2.