Which Drilling Jig?

[monterey]

I'm eventually going to take the plunge into a TD.  I'm pretty well set tool wise except for the center drilling jig.  I'm looking at the Bingham jig and the Rockler 1000 but would like to have any and all suggestions and critiques on any jig that you have tried.

[bjansen]

I had the Bingham jig back in the day and it worked fine for me.  They are fairly easy to make if you want to just make one yourself. 

[skeaterbait]

Take all this with a grain of salt since, as mentioned in another thread, my math skills leave MUCH to be desired. I have tried making my own and was never successful. I also bought a HF cheapy jig. It worked ok after I made some adjustments to it but still lacked what I was after. Currently I have a Dowel-it 2500 which is far superior to the HF. All that said, I still haven't drilled a bow with it so I can't attest to how well it works for that but all the testing I did with it proved to be accurate within about a half MM. I am not sure what that is with imperial measurements, I just happen to have a ruler with metric on one side and it was easier to read than the other.

[canopyboy]

... I just happen to have a ruler with metric on one side and it was easier to read than the other.

 

[monterey]

... I just happen to have a ruler with metric on one side and it was easier to read than the other.

 

X2   

[monterey]

Looked up the Dowel-it 2500 and it looks identical to the Rockler 1000.  Wonder if it's the same product re branded?

[Crooked Stic]

The self center ones you can get by with. They are not perfect. A jig with a block mounted on a flat machined plate is better. Drill the riser from one side and the limb from the other. Having the same side down on both limb and riser. Width of both needs to be the same also.

[bjansen]

I agree with Crooked Stick!  That’s the simple set up which works best - also why they are easy to make.

[monterey]

Could you post a picture of it?

[bjansen]

https://imgur.com/a/h3fIesz

[Roy from Pa]

[Crooked Stic]

Roy your drill looks kinda wimpy-------------other than that I think you got it figured out   

[Roy from Pa]

LOL, that's Mr. Jansen's design.

I just made it easier to see.

The drill, Kenny sent me his old one:)

[skeaterbait]

... I just happen to have a ruler with metric on one side and it was easier to read than the other.

 

X2   

Oh sure, pick on the old blind guy....

[skeaterbait]

Looked up the Dowel-it 2500 and it looks identical to the Rockler 1000.  Wonder if it's the same product re branded?

It's hard to tell from the pics but all the jigs I looked at in person only had two of the four holes threaded for inserts, except the Dowel-It 2500 which threaded all four. The spacing of the holes are such that the distance between every other hole is right at 2". So for one set I can put inserts for the riser and the other set for the limbs. Just need to mark them so you remember which set you are using.

[Roy from Pa]

So in other words they are all 1 inch apart?

[skeaterbait]

Not exactly, there is another hole in the middle of the four that has to do with the mechanics so my drawing is not too scale.

[Roy from Pa]

Ah false information?

 

[skeaterbait]

Ah false information?

 

Naw, just a horrible draftsman.

[Crittergetter]

Skeater, I have used that same jig. It works “ok” but you need to make sure your limbs and riser as parallel as possible! You will also have to draw a center line on the limbs before you mount them to verify they are mounted straight. I’ve also had to swap them top and bottom before to get them lined back up.
It’s not perfect but it’ll work with some patience.
I am in the process of having a new jig machined and mounted to a machined surface to expedite the process.