My board bow (build along?)

[PatM]

Guys, I was about to use some 100% polyester thread and to test it out I tired to break it with my hands. It broke 
I heard it is the number of strands that controls the strength of bow string. If I use enough strands, could it make a good bow string or should I just not use it at all?

  Polyester thread is probably spun up with short strands. Actual polyester bowstring or artificial sinew(the polyester type) is long continuous fibers.

  Get some fishing line for a no stretch string.

[Dictionary]

I'm about to make tillering gizmo. I think I'll just make one without a pulley (a tillering stick). Does anyone think I should do a different design?

A tillering stick works just fine, even against popular consensus around here. People were using them for a long time before the pully became so popular.

[bubby]

I use a tree mounted on the shed wall, no pulleys

[Marin]

Once again, I've been bay for the past couple of weeks but I am about to cut the nocks. Just wondering, do I need a chainsaw file to carve them or could I just cut them with a pocket knife?

[Marin]

Does anyone know the answer?

[bubby]

The answer is it wirks better and is easier to use a file they are inexpensive. Carve it out with a knife but it will take a lot of sanding to get it smoothed up enough not to cut the string

[FilipT]

You can use thin round file for shaping metal if you don't have one for wood, that is how I do it, it is a bit longer to do, but doesn't matter. Also it leaves very fine nocks which need just a bit sanding.

[Marin]

Just cut the nocks. I used a triangular file to start the out and then used a chainsaw file (like bubby) when I finished, I noticed the nocks aren't exactly aligned. It's fine if their not exactly aligned, right?
Here's some images so you can give feedback if you want.

[Marin]

Almost forgot, when I was measuring out for e nocks I noticed that on the back of my bow, there are some dents. This is from where I clamped the bow to the workbench when rasping and the workbench left a mark. They are not deep but I am curious as since I am not supposed to even touch the back, will these dents cause any hindrances when tillering? I know this might be a stupid question but I just need to know for future reference.
I've attached some images

[Marin]

Just put my long tillering string on just to see how it would fit. It keeps slipping off. Should I go any deeper with my nocks? I haven't  done nocks before so I don't know if I have gone deep enough and  it's just that my nocks are done poorly.

[bubby]

They aren't deep enough, try and even them up as good as you can and sand the edges of the bow so they aren't square. I can't really see the dents but you can sand the back, radius all edges and if the dents are still there a damp rag and an iron should pull them out

[FilipT]

It is funny but I never made perfectly aligned string grooves. Even though I mark with pen their location, I can't seem to cut directly where the lines are.

[Marin]

Bubby, what do you mean by "sand the edges so they're  not square"?
Also, what does "radius all edges" mean? Sorry, I don't know terminology that well.

[bubby]

You do not want any edges that are not rounded, a square edge is a spot that will raise a sliver, round them with sand paper. About the same as a pea, a radius is simply a circle for an easy explanation

[bushboy]

Popping the handle is not the only thing. That can happen if you allow the fades to flex at all.