Binghams 64 rd

[breazyears]

Bought the blue prints for the form, and the blue prints for the 64 inch bow.
 Has anyone used the prints for the actual bow as a template? They seem pretty rough to me. Would it be better to just taper the limbs straight down from a point near the riser, or...
 If anyone has built this bow, could you let me know what you did.

[FOX SQUIRREL NUTS]

just got done with them and yes they are rough especially for the limb profile.  make yourself a pattern(we didnt) and make it equal on both sides.  it will save you a huge headache.  i have the plans scanned full size if you mess up the first set and you could have them reprinted.

[gene atkinson]

what i did was use the paper template with no changes .
 i am on bow#4 and #5 all is well.
and like fox said make a pattern , full length maybe out of 1/4" plywood .
i wouldn't change anything.

[Erwincm]

My Bingham plans had a slight parallax caused presumably from the blueprint copying process. I placed a transparent grid over the blueprint limb profile and found that it was not symmetric. I'm sure this would have caused some tillering challenges down the road so I decided to replot the profile in Excel using my best hand measurements of the blueprint for the average limb X-Y data points. I then replotted 1:1 on a large size printer. I've built 3 bows so far and have not seen any limb twist.

[gene atkinson]

i was laying out limbs on the bow and realized that you was not talking about the form . DOH!..
for the limbs i measured 12 1/2" out from the center line of riser both ways marked for 1/2" tips used a straight edge .

[breazyears]

thanks for the response guys. I think ill go with the straight taper.

[Magnum in Ms]

I go 12" from center of the riser both ways and then taper to 1/2" tips. If you taper from the fades you may need more than .002 taper in your lams.