Single pump Ultimator
Posted 21 July 2015 - 10:13 PM
Posted 22 July 2015 - 09:03 AM
I then considered having some type of carriage in front of the rear priming plate with springs to retract it so the carriage is retracted to the front after priming. That would require holes drilled through the rear priming plate, and I'm not sure if it would survive the forces once compromised.
I then considered a third option. Weld a bar to the back of the priming plate and cut slots out the sides for the bar. This seemed the simplest and most viable. I eventually scrapped the concept though. I'd had my Ultimator since Christmas morning - straight off the store shelf. It's one of my more precious blasters and I didn't want to do any major shell work to it. If I was to pick any of the modifications that's the one I'd go with, just be sure to brace and reinforce the handles. I don't think they would last long if you were pushing against one of them while pulling a priming bar. Installing a shoulder stock to brace against would also move the priming force off the handle and into your shoulder. Try to keep the added priming bar light weight. You don't want to add any more mass to the priming bar than you have to. It's already got a lot of mass in play.
Good luck. I don't think i've ever seen anyone single pump load an ultimator but i'm pretty sure it would rock. Oh, and btw if you ever want to make a slip on shotgun attachment - they do pretty amazing things with long loose fitting barrels like petg and sch 80. It doesn't like tight barrels.
Posted 23 July 2015 - 12:01 AM
My best recommendation would be, if you are having slippage while priming, flip the firing catch around. My Ultimator wouldn't prime reliably without holding the the trigger forward, as it was worn. It now primes in approx 11-12 "pumps".
If you're still set on this, my idea had been to install a T handle that was attached to the plunger rod by cable. Adding a name-badge style retractable cord will keep the handle tight to the back of the shell prior to/during the firing process. (Think lawnmower pull cord)
Alternatively you could rig it so that the cord is extended when the blaster is fired and retracted when it is primed. (you would be pulling on the cable housing, so this would have to be more durable)
Edited by sublimedom777, 23 July 2015 - 12:03 AM.
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Posted 25 July 2015 - 07:01 AM
Seriously though, you're better off selling it. While I'm all for the "mod it and have fun" mentality, some blasters are just better collector's pieces/stock blasters than mod projects. IMO, the only time moddong a blaster as expensive and rare as the ultimator is worth it is if it was broken to begin with, and modding it will bring its value back.
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