Many years ago i needed a quick solution for separating water from my pump. What started as 5 Minutes workaround envolved to a valuable companion for years….

Had a fun pumping session. Nipples, udder and hole 🐮 Used @kdxgp.bsky.social pmpctrl and clone bullmaster I built

Oh yeah! Scaled up build to 180mm diameter (~7.08in), with 70mm opening (2.75in), of my two stage split design is a success! But I have to admit I found a minor issue with the gasket thickness. I'm talking about 0.1mm... maybe I'm stepping into over-engineering territory...

🚨 BETA TESTER WANTED 🚨 I've built one beta test version of my 2-stage split entry design and it's hungry for some action (check pics for specs). Head over to x.com/KDxGP/status... to maybe be the lucky pump lab rat 🐀😉 (sorry for the none-X/Twitter-users, I just have to most followers there)

A bit of the design history of the 2-stage split pump

2nd test-drive of my 2-stage split entry design prototype. Still holding with no leaks. It has a 70mm (~2.75") opening, which is good for about 1h before I get stuck. But luckily I can sparated it 😁 #cockpumping #cockpump #ballpumper #ballpumping #penispumping #penispump #pumping #vacuumpumping

Heureka! The FINAL (at least I hope so...🤞) prototype of my 2-stage design with a split opening. 👉On to test-driving it!

I poured my blood, sweat & sanity into this. I went full MAD SCIENTIST in a secret pump lab, unleashing forbidden tech: next-gen AI + space-grade innovations. This isn't just a pump...THIS IS THE GREATEST REVOLUTION IN PUMPING HISTORY. DA_KNOT drops NOW. Model files on my Printables profile.

Some new design coming: - olive green urban camouflage - black/blue #puppypride - purple certified pump puppy

I have updated my 3D printable DIY #BullMaster clone. It now comes in sizes from 3" to 4" and different thicknesses. You can find all model files to download on my Printables profile -> www.printables.com/model/150879...

I started work on publishing my PMPCTRL automatic pump setup. Still a lot of writing, making images and cleaning up software repositories to do before I can call it 'published'. You can track progress on www.kdxgp.com/pmpctrl Feedback and input are always appreciated. #cockpumping #ballpumping

I'm inching closer to a viable solution for my 2-stage split design. But: 1) It needs four screws+shims. Putting it on/off is fiddly. 2) The gaskets wear off and need replacement. They're easy and cheap to make, but ideally you would require tools (hole-punch) to make. Your thoughts on that?

Progress in the 3,7" tube... #monstercock #pumpinghuge

If you're into DIY'ing your own pumps and looking for a BullMaster BMC357, I've made a clone model for you to download at www.printables.com/model/150879... to print it yourself

As Edison has discovered lots of ways how to not make a light bulb, I'm finding new ways of how to not make a 2-stage split pump. But I'm only at 6 attempts so far.

My new KDxGP just arrived! Amazing quality. 4,1x11". Fucking huge! @kdxgp.bsky.social

If you want to spot @extremgirthpump.bsky.social pumping in the woods, you'll need to look more carefully. Otherwise it will be hard to see him with his new custom camouflage pump (kdxgp.github.io?c=%2373835e&...). #cockpumping #cockpump #penispumping #penispump #hugebulge #monstermeat

Morning! #pumpinghuge @kdxgp.bsky.social

"Big Blue" (kdxgp.github.io?c=%2332599c&...) next to a Monster Tube Sr. photo generously provided by it's owner (Thank you!)

🏆 New personal best unlocked! #cockpumping #cockpump #ballpumper #ballpumping #penispumping #penispump #pumper #pumping #pumped #vacuumpumper #vacuumpumping #monsterbulge #hugenuts #hugebulge #monstermeat

After years, I finally treated myself to a new ball pump! Custom sizing, color, and designs available from @kdxgp.bsky.social! I may have misjudged the size XD, but at least it is significantly lighter and I can't wait to get into it 😈

If I pump my pump 🤔 ... will it get bigger? Latest custom-built "big blue" (4" x 7.87" x 12.3", kdxgp.github.io?c=%2332599c&...) next to 3.15" x 5.91" x 9.78"

Pumps used: magenta: kdxgp.github.io?c=%23ff0088&... black: kdxgp.github.io?c=%23000000&... #cockpumping #cockpump #ballpumper #ballpumping #penispumping #penispump #pumper #pumping #pumped #vacuumpumper #vacuumpumping #monsterbulge #hugenuts #hugebulge #monstermeat

Fuck! This new pump is so efficient i almost pack this 3,7x10" tube in few days. I have to order 4x11" soon! @kdxgp.bsky.social #pumpinghuge #monstercock

Just received my new custom tube from @kdxgp.bsky.social Amazing quality! Perfect size, perfect work. By far my best tube ever! Inner size is 3,7"x10". I love to crush my foreskin on the bottom... #pumpinghuge #monstercock

Making progress on kdxgp.github.io

I'm building a 3D configurator for my pumping system. Still a bit work-in-progress. Check it out under kdxgp.github.io

Nothing beats the feeling of some heavy #pumpedballs 🏀🏀 #cockpumping #cockpump #ballpumper #ballpumping #penispumping #penispump #pumper #pumping #pumped #vacuumpumper #vacuumpumping #monsterbulge #hugenuts #hugebulge #monstermeat

How Do You like them Apples? 🤪🍆🍏🍏 #cockpumping #cockpump #ballpumper #ballpumping #penispumping #penispump #pumper #pumping #pumped #pumpedballs #vacuumpumper #vacuumpumping #monsterbulge #hugenuts #hugebulge #monstermeat

Hi Bulgies! I'll be at Folsom Europe on Aug. 30th at about 7 p.m. at the corner near Prinzknecht. Who will also be there? Let the BULGES meet !

I got a new pump, custom made by @kdxgp.bsky.social 😍 (I drew the pig, hehe)

Shake, shake, shake Shake, shake, shake Shake your b... 🏀🏀 #cockpumping #cockpump #ballpumper #ballpumping #penispumping #penispump #pumper #pumping #pumped #pumpedballs #vacuumpumper #vacuumpumping #monsterbulge #hugenuts #hugebulge #monstermeat #monsterballs

Today at the KDxGP Pumplab: making gaskets for a 2-stage #ballpumping prototype with a split entry

Sometimes you can't resist and need to keep pumping to get bigger and bigger... #cockpumping #cockpump #ballpumper #ballpumping #penispumping #penispump #pumper #pumping #pumped #pumpedballs #vacuumpumper #vacuumpumping #monsterbulge #hugenuts #hugebulge #monstermeat #monsterballs

Needed to take a break during my evening stroll because of to much heavy lifting... #cockpumping #cockpump #ballpumper #ballpumping #penispumping #penispump #pumper #pumping #pumped #pumpedballs #vacuumpumper #vacuumpumping #monsterbulge #hugenuts #hugebulge #monstermeat #monsterballs

Feelin' artistic today...🧑‍🎨 What do think? Are 2-stage pumps a good still life subject?

Who likes FAT and HEAVY #MONSTERBALLS? #cockpumping #cockpump #ballpumper #ballpumping #penispumping #penispump #pumper #pumping #pumped #pumpedballs #vacuumpumper #vacuumpumping #monsterbulge #hugenuts #hugebulge #monstermeat

Isn't she a beauty? (3.5" x 5.98" x 9.68" ) I have this one available. DM me if you're interested. #cockpump #ballpumper #ballpumping #penispumping #penispump #pumper #pumping #pumped #pumpedballs #vacuumpumper #vacuumpumping

Making of a custom 2-stage pump cylinder #cockpumping #cockpump #ballpumper #ballpumping #penispumping #penispump #pumper #pumping #pumped #pumpedballs #vacuumpumper #vacuumpumping

Without really noticing I have slowly build a whole modular pumping system. #cockpumping #cockpump #ballpumper #ballpumping #penispumping #penispump #pumper #pumping #pumped #pumpedballs #vacuumpumper #vacuumpumping

Making some new tubes to pump up your junk... #cockpumping #cockpump #monsterballs #ballpumper #ballpumping #bigballs #bulge #bullballs #penispumping #penispump #pumper #pumping #pumped #pumpedballs #vacuumpumper #vacuumpumping #heavyballs #hyperballs

Show what you are and get my #PUMPPIG keychain over on Printables for free and make your own. www.printables.com/model/128579... #penispump #cockpump #penispumping #cockpumping #pumppig

Made a little something. Remember the episode? #bigballs #ballpumping #vacuumpumping #pumped #pumping #heavyballs #hyperballs #pumpedballs #ballpumping #penispumping #cockpumping

My ultimate vacuum pumping combo: fully custom cylinders and app controlled pump system to grow to ever new sizes 🏀🏀 #penispump #penispumps #cockpump #cockpumping #ballpumping #pumpedballs #bigballs #hyperballs #salineballs

It's cookie season! Have you been naughty? Treat yourself! Download the model for free on printables.com/model/110147... #bdsm #fetish #3dprint #3dprinting #cookie #cookies #cookiecutter #cookiecutters

Are you scared? ITAI.KAWAI.2 - 'Scary' Halloween Spanking Paddle Download the model for free on printables.com/model/105081..., make your own and 'treat' someone! #bdsm #fetish #3dprint #3dprinting #spanking #spank #spankingpaddle #sm #kawaii #cute #halloween #scary

ITAI.KAWAI.1 - Cute Dog Paw Spanking Paddle To download the model for free and make your own visit www.printables.com/model/104233... #bdsm #fetish #3dprint #3dprinting #spanking #spank #spankingpaddle #sm #impactplayer #kawaii #cute #diy