Bet you don’t remember that old song. Sorry that no one on your end has shown interest in the valve spring shooter idea, except one innovative person. Bless him.
Man I know used a digital micrometer to measure the diameter of my set of springs, they measure 1.40 inches across. Closest I could come for a tube was a length of pipe in 1 and ½ inch outside diameter. The springs are kind of loose inside this pipe–hope it doesn’t hurt–would like something in a closer fit, and smoother too.
I plan to put a floor flange on either end for attaching brackets. Person I showed this too said it was ungainly and way too heavy. I tried to tell him I am no engineer, I am just trying to put together a prototype, see if the idea works at all.
I want to use a two by four for a “stock” and a boat winch to pull the arrow holder back against the train of springs. Sorry I can’t report some progress, but I am feeling my way in the dark here and I do have other things to do. Am still working on converting old cars to little shelters.
Big problem was what to use for a trigger mechanism. I have seen triggers for antique cross bows, but I don’t have the ability to make something like that. I said trigger “was” a problem, because there may be merit in a suggestion by a lady from
Her name is Stella Nuttall and she grew up near the location of
This lady says we have missed a simple solution for the trigger. Use an archery release. I had to admit I didn’t know what an archery release was, or is.
She said it is a mechanism that holds the bow string as you pull it back. To shoot the arrow, you push a button and it releases the string, smooth as silk. Trigger problem solved? What do you think, G?
By the way, this lady asked that her name be mentioned if the archery release is used. I asked her why and she said, “Because I thought of it.”
Wish I had more to report. What should I do about the barrel problem of looseness, and is the archery release a good idea?
P.S. Sheriff of Nottingham, look out, we’re gaining on you!
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You are making great gains on the valve spring shooter project.
I have an idea for a more appropriate, and lighter, tube or barrel. Some one suggested we check out dimensions of tubing sold by Online Metals dot com. Said they have a wide variety of sizes and metals in aluminum, steel and brass. Now that you have dimensions you can find something that would work. He said Online Metals has plastics like Delrin and Nylon you might find a use for. My source says they cut to length and service is great.
As for Stella Nuttal’s idea of using the archery release, I had misgivings at first. The little trigger button sounds great, but I wondered if the release could handle the poundage or pull that valve springs are capable of generating?
Well, I visited the archery section of Bass Pro and the cheapest release they sell has been tested to 200 pounds! Some releases have handles and some have a removable wrist strap. Hope this helps.
The digital micrometer sounds neat. Please keep me posted on your progress. By the way, what do you intend to shoot with your first model? I mean what projectile–arrows?
Editor’s Note: The archery release pictured above is very inexpensive, an for a few more dollars you can buy a more durable one. But all reviews were favorable concerning function. One man complained about the strap, but for this project the strap is not necessary.
Click on the Bass Pro Shop logo below to order an archery release for yourself. Search for key words archery release on the Bass Pro Shop home page. That will take you to a page where you can order a release.
Prell and Karl welcome your comments below with your thoughts on this ongoing project.