N/A Spring Press

[marflow 777]

Paul K as nice as i have seen

 

[WoodWelder]

The bottom line is every spring compressor pictured above gets the job done. We are only dealing with preloaded springs and not fully compressed springs here folks. I built my compressor to be a height adjustable version of the Air Venturi. Each 5mm (thread diameter) rail clamp screw on my compressor provides well over 500 pounds of clamping force when torqued to only 20 inch pounds and more torque can be applied if needed. If I thought that wasn’t enough I could add more scope rings or use rings with more screws. Does anyone know how many pounds of preload most springers have?

The naysayer didn't want to answer? LOL

You first need to know what the spring is on any rifle to know the constant.... If you want to understand, you need to look into Hooke's Law if you care too? I'm not explaining it!

You have a good design that stays centered and adjusts for height and you don't need to build a shed to store a massive contraption in. The only issues I see is if the scope rings snap, (highly unlikely)?

This would be the mount I will use for a dovetail.

 

[luckybuckeye]

The naysayer didn't want to answer? LOL

You first need to know what the spring is on any rifle to know the constant.... If you want to understand, you need to look into Hooke's Law if you care too? I'm not explaining it!

You have a good design that stays centered and adjusts for height and you don't need to build a shed to store a massive contraption in. The only issues I see is if the scope rings snap, (highly unlikely)?

This would be the mount I will use for a dovetail.

View attachment 455478

I am going to upgrade my dovetail attachment at some point and I am going to look into Hooke’s Law. Thanks for the information.

 

[Wadcutter]

Because of this thread, I decided to build a better "mouse trap" than the one I was using. The base clamp and Maple plank are from Menards. Works with barrel attached or removed. The half moon wood block is for the FWB 12X series.

 

[Hold_Over]

Looks like I am gonna add building a better spring compressor to my list after seeing all the ideas here....

 

[luckybuckeye]

I tested a used hw97 spring (14.5 fpe .177 with 1000 shots on it) and it took 59 pounds to compress it 2”.

 

[Bear-of-Grayling]

Finally built one. Heavy duty. Very long adjustable thread for extra long preset. The PVC coupling is filled with an epoxy wood putty and the end cap is inserted in a baggie and pressed in the filler for a form fitting cap holder. Started with the Hatsan 135. Went in like butter. Thank you everyone for your ideas.

 

[JimBentley]

I have a mill and a lathe, but I bought this one.

Sun Optic for less than $100 a few years back. I figure my time making spring guides and such was much better spent than making a compressor.