Ubehage Posted January 7, 2016 Share Posted January 7, 2016 (edited) I found this data-sheet that details the size of case formers for different shell sizes, how many layers of paper (and what type of paper) to use, and how many turns of spiking for the individual shells. And also how spolette and time-fuses should be made for the different size shells.Case Former Dimensions.pdf Edited January 7, 2016 by Ubehage Link to comment Share on other sites More sharing options...
mikeee Posted January 7, 2016 Share Posted January 7, 2016 That looks like a fairly complete list of specifications for cylinder shells and standard sized case formers etc. Link to comment Share on other sites More sharing options...
OldMarine Posted January 7, 2016 Share Posted January 7, 2016 Mikeee, if you say this list of former sizes etc is correct, I'm saving it. Your formers are works of art and in demand so that speaks volumes. 1 Link to comment Share on other sites More sharing options...
mikeee Posted January 8, 2016 Share Posted January 8, 2016 Oldmarine, Larger case formers can vary in size depending on the type of shell being made and the mortar thatis available to shoot the shell from. I have had a number of builders request custom sizes based onthe type of shell they wanted to build. I have also made some extra long case formers for builderswanting to add additional rows of inserts for specially designed shells. I have also made a number of different sized case formers for rocket header casings. The document Ubehage posted containsall of the standard dimensions quoted in the Fulcanelli articles which is the standard in the industry. Link to comment Share on other sites More sharing options...
Maserface Posted January 8, 2016 Share Posted January 8, 2016 I was going to point out that the 12" shell former ought to be 10.75", but 11 is probably still usable. Link to comment Share on other sites More sharing options...
mikeee Posted January 8, 2016 Share Posted January 8, 2016 Maser, Seems like most of the larger case formers are made for the individual builder and the methods and techniquesthey use in building their shells. I have made 12" tools in varying sizes based on each individual builder's specs.The sizes have varied as much as 3/4" from smallest to largest in diameter. I would assume the builders are addingadditional layers of support on the inside of the shell based on the size of inserts they are using and allowing forexterior spiking and layers of paper on the exterior for the final dimension of the shell. The larger shells are usuallydesigned from the inside working outward to the final dimension needed for the gun/mortar. Depending on the finishedsize of your inserts and the number you are fitting in a ring will determine the size of the former you need for the shell.You can always fine tune the size of the inserts to fit the size of case former you have on hand. Link to comment Share on other sites More sharing options...
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