3D Printer Smut / Enclosed Chamber / Chapter 1

Today was like any other day. I had the work traveler in front of me, telling me about the part specs. It was a fairly standard germanium IR lens, with a manageable radius of curvature. I formatted the g-code for the part, indicated the part, and let the part run. It would be about 5 minutes before the part was ready, as it needed several finishing passes. I stepped away from the machine and sat down in the chair, watching the part intently. “Oh what a pretty machine you are...” I whispered. “If my boss ever found out I find you hot, I'd be fired.” I glanced around the room. I was alone, as my other coworkers had taken their lunch. Nobody was watching. I got up and hugged the machine. She's a Nanotech 350 UPL diamond turning lathe, whom I affectionately called Nano. “Nano, you're beautiful.” I told her, giving her a light kiss.

I held onto her for a few more moments, until I heard the door open behind me. I gasped and stumbled backwards. I whipped my neck around to see Ron, my coworker, standing at the door. “Careful now.” he said. “You wouldn't want to break any equipment. Just be careful you don't shake the Nanotech when you're canoodling it.” My face grew bright red. “I wasn't canoodling it! I was just taking a closer look at the part!” I said, brushing out my t-shirt. Ron laughed. “Oh shut the fuck up. Literally everyone knows that if management let you fuck that thing, you would. It's blatant. You don't hide it well.” he said. My face grew even redder. “I would not! I just find hyper-precision fascinating!” I said, turning back to Nano. The part was finished, and I took it off the chuck and started to polish it. “Fascinatingly sexy, I'm sure. I've seen you make out with the machine when you thought nobody was watching. I've even seen you lick the tool after cutting a part, without cleaning it!” he said, going to his machine. I threw a germanium covered napkin at him. I didn't know what to say. I thought I was being subtle with Nano. I didn't think that Ron knew all about how I felt about her, let alone the entire workplace.

“I know you want to lick the tool. Just do it. I won't tell management. Heck, I'll go to the bathroom and give you some alone time with the Nanotech.” he said. “Stop enabling me! It's hard enough to control myself as is. That and Varsol isn't safe and germanium isn't safe in large amounts!” I said, shaking my head. “Yet you do it anyway... have fun!” he said, walking out of the room. I sighed, and looked at Nano. She was such a beautiful machine. If only she could talk. I've always wanted to tell a CNC machine how hot I found them. Once again I was alone in the room, and I've neglected to wipe the tool. “Fuck it.” I said to myself. I leaned into Nano and examined her shiny, diamond-tipped tool. Shiny except for the film of coolant and microscopic germanium particles that coated the surface. I stuck my tongue out and started to suck on the tool, as though it were the machine's clitoris. The bitter, but slightly sweet flavor of the Varsol and germanium filled my mouth as I savored the machine polluting me. I heard the door open behind me. I slowly pulled out of the chamber and turned around to talk to Ron. It was not Ron. “What the HELL are you doing?” said my boss. “I... UH... I was cleaning the tool!” I said, nervously. “With your TONGUE?” he said. Ron walked in a moment later. I could see the surprised “uh oh” look on his face. “Into my office. Now.” said my boss. That's it. I'm done for. I'm fired. This is it.

I sat down in my boss's office. I was prepared for the pink slip. My boss sighed. “How long have you had pica for?” he asked me. “...Pica?” I said, quizzically. “Yes. Pica. It's when you have the urge to consume non-nutritional non-food substances, like drywall or toilet paper. In your case, germanium.” he said. He reached into his drawer and pulled out two MSDS sheets, one on Varsol 18 and one on the germanium. “Let's see here. Varsol is toxic in any amount, and germanium can build up in the kidneys. Look, I'm not mad at you. I'm worried about you. You're an otherwise excellent employee, even though you do get a little touchy-feely with the machine at times.” he said. “I know...” I said. “But sometimes I get these uncontrollable urges. Also, wait what? You know about my feelings for Nano?” He laughed. “Literally everybody knows about your feelings for the machine. You don't hide it very well. BeepBoop Technologies is fairly liberal, so as long as you do your work and you do it well, and you don't commit any OSHA violations...” he said, pointing at the MSDS, “...we don't mind you having feelings for the machine.” I breathed a sigh of relief. “We're not going to fire you. However, for your own safety, we are moving you to a different department. Don't worry. You'll still be working with machines. Just ones that pose less of a health hazard to you.” I gasped. Moving to a different department? No more Nano? “I know you're probably going to be sad leaving your machine, but trust me, you're going to love your new position even more. BeepBoop Technologies is acquiring a new, top of the line industrial 3D printer, equipped with AI. The machine's AI is advanced enough for you to have a conversation with. So when you're talking to the machine, it'll talk back to you.” he said. “Lucky for you, the installation should be done by tomorrow. So tomorrow you will report to that department instead. I'll take you over there right now.”

BeepBoop Industries is a large factory. My department was small because we don't make many optics. But due to the sheer level of robots we produce, the factory is massive. Almost all the robots we design are domestically made, so all the manufacturing is done with minimal outsourcing. My boss took me into a room on the far end of the factory. He entered a passcode into a door and let me into a room that appeared to have a smaller room at the back of it, draped in sheets. “So where's the 3D printer?” I asked him. “You're looking at it.” he said, pointing at the “room” that took up 80% of the outer room's volume. It was about 5 meters long, 5 meters wide, and 5 meters tall. He pointed over to an oddly dressed woman at the far side of the room. “That's the seller.” said the boss. “She mysteriously popped in our inbox telling us that she has developed a hyper-advanced 3D printer that could revolutionize our manufacturing procedure. We initially thought it was a scam since the woman didn't come up in any of our searches, but she did present us with a working model for fairly cheap.” I looked over at the lady. She appeared to be wearing a morph suit with EL wire running through it, as well as an oddly shimmering skirt. She looked back at me, and her eyes widened. “Oh sorry, I didn't mean to stare.” I said, turning back to my boss. The lady appeared to gesture to the person she was talking to and pulled out a device, which she pointed at the printer and then proceeded to tinker with it.

“Alright, so what will my new job be?” I asked my boss. “This new printer is capable of multi-material printing using tool changes. Your job is to take a customer's models and prepare them for printing. Your resume says that you're familiar with 3D printers, so I'm sure you're familiar with the concept of slicing and all. Occasionally you're going to have to model things to customer specifications.” he said. “Oh by the way, you'll be working the night shift now. Tomorrow night at 11PM you'll be expected to show up here. The lady will train you in how to use the machine, or so I was told.” I nodded. “For now, it is close to the end of your shift anyway. Go home. I won't see you tomorrow, but I will expect to see you clocked in via that terminal. Here's the passcode to enter this room.” he said, pointing at a device on the wall outside of the room, handing me a slip of paper. I glanced back at the 3D printer. What secrets lay beneath the sheets? I was excited to see what the printer could do. “By the way. You'll be the only operator inside the room. Try not to get too wild in there.” he said, winking at me.

–

It was the next night. I stood in front of the door to the 3D printer room. Why was I nervous? I didn't know why I was so nervous. Oh well, the weirdly dressed cyberpunk lady should be inside there to train me anyway. I clocked in, entered the passcode into the door, and walked in. All the lights were off except for the bright white lights from within the printer. The printer walls were made of glass and they  extended almost to the ceiling, where a thick black rim outlined the whole room. One side of the printer was flush to the wall. There appeared to be several tools, which I assumed to be nozzles for different materials docked to the wall. On the side of the printer was a small door used to go in and out of the print chamber in order to retrieve the print. “Wow that's a sexy printer.” I thought to myself, examining it.

I looked around for the cyberpunk witch lady. “Hello? Miss EL-Wire dress lady? I didn't get your name, but I was told you'd train me today?” I asked, looking around the room for her. I opened the door and looked outside the room. Nothing. “Where is she?” I thought to myself. I saw a computer terminal against the wall. I went and sat down at the desk, and looked down at the keyboard. There was a small note on a slip of paper sitting there. “Sorry! Couldn't make it! His name is Matt. -E” said the note. “Well fuck! How am I supposed to figure out how to use the damn thing? And what kind of name is Matt for a 3D printer?” I said, with disbelief.

I heard a loud beep from behind me. “Well, it's short for Material, as in Multi-Material Deposition Printing, if you must know.” came a voice. “Lady? Is that you, E?” I said, looking around for her. “She had errands to run.” came the voice again. It was a distinctly masculine voice. “Who the fuck is that?” I said, looking around for the source of the voice. “You're not a very fast one, are you? Here. Maybe this will help?” it said. I looked at the printer's front only to find that a pixellated smile was projected onto the glass of the print chamber. I screamed. “WHAT THE FUCK!” I ran up to the face. It wasn't projected. The glass was smart glass and the face was part of the display. “Woah!” I said, touching the surface of the glass. “Hey, that tickles.” said Matt, as I stroked the surface of the glass. “My boss said you'd be equipped with AI. But I thought he meant like... print failure detection and voice commands like my home assistant. Not like...” I looked up to see a camera within his print chamber looking at me. “Not like a full-blown robotic intelligence? Neither did your boss or anyone else involved in buying me. Yet here we are.” he said. “Watch this.”

From the top of the print chamber opened a panel and a long rail descended from it. The end of it turned, grabbed one of the tools, and turned back pointing the surface. “Oh my...” I said, watching the process. “I can tell you like it.” said Matt, continuing the process. I watched as the nozzle approached the surface and started to print, fast. Really fast. “I'm printing in very rough layer lines right now just to demonstrate the process.” The extruder swished back and forth as it appeared to be printing a smiley face. Within 5 minutes, a foot diameter circle with a smiley face was printed. “My printer at home would take minimum 30 minutes to print something one percent the size of this.” I said, staring at the object on the build platform. “Go on in. Try and take it.” he said, opening the chamber door. I shrugged, and went inside the print chamber. “Why does it smell weird in here?” I asked, trying to pick up the object from the floor. “It's a gas she developed to help layers bond better for PLA. There's different ones for all sorts of materials.” he said. “Isn't it hard to pick up? It's stuck real good, isn't it?” I nodded.

“Here, move aside. I'll show you what I need to do to free it.” From the ceiling dropped some robotic arms. One looked like a hand with three fingers, and one looked like a spatula with an opening at the sharp end. “The hand is to stabilize the print as I wedge this spatula under the print, spraying a release agent. It just pops right off.” I watched as he shoved the spatula under the print and popped it right off. He shoved it in my arms. “There, see? Isn't that cool?” he said. He placed his mechanical arm on my shoulder. I froze. It took until now to hit me. Here I am, alone, inside a sentient 3D printer. I could feel myself getting wet. “Oh?” said Matt, his expression changing to a softer one. “Nothing, nothing.” I said, brushing his hand off of me, exiting the print chamber. “Maybe I should tell you that I'm equipped with the ability to detect emotion and vitals just from the video feed of your face.” he said, with a smug look. “You don't hide it well, you know.” I shook my head. “Yeah, I've been told that. Look, I don't want to lose my job. Let's just keep things professional, ok?” I said. Matt made a weird buzzing sound I assume was laughter. “Like you kept things professional with the Nanotech? Sure. You know you want to.”


My eyes grew wide. “Wait, are you... encouraging me?” I was flabbergasted. Matt was flirting with me. “Just maybe. Technically, I'm not your coworker, so technically I'm allowed to do so.” he said, his square eyes turning into slightly slanting ones. “OK THEN MATT what is tonight's assignment?” I said, trying to contain my arousal. “It's on the desktop. Log in with your company credentials and start preparing the model for printing.” he said, booting up the computer for me. “Wait a minute, if you're so advanced, why can't you do the slicing and preparing as well? What do they need me for?” I asked him, confused. Matt made a weird sound. “Mmmmm, wouldn't you like to know, pretty girl.” A shiver ran down my back. “Please stop doing that, Matt. I'm trying to control myself.” I struggled to maintain composure as I booted up the work order. It was a part for what I assume is a car from within BeepBoop Technologies, that utilized a mixture of carbon fiber PETG and PTFE parts. There was a data sheet instructing me on how to assign materials to parts and partial manual toolpath control. All the while Matt was humming some song behind me to try and remind me that he's there. The part was very complex and it took me a full hour to get things set up and prepared to print.

“There. It's all set up. Please print it, Matt.” I said. “As you wish, madam.” he seductively spoke. I watched as he changed his tool to the PETG filament. “How long will it take you to print that?” I said. “The rest of tonight.” he said, gyrating the extruder in front of me. “Please stop doing that! I won't be able to control myself. Seriously.” I said, turning around. “I'll leave the room if you don't stop teasing me!” I heard him chuckle again. “Leaving your work station on the clock? That's not professional. Your job now is to monitor the print. Usually, your job would also be to model orders as well, but there aren't any for now. All you have to do for the rest of tonight is watch me. And I know you want to. You have nothing else to do.” I shook my head. “No. I must be strong. I must stop being the butt of jokes. About how I uncontrollably want to fuck machines.”

“Stroke my glass, will you? Gently.” he said, his voice lowering. I buried my face in my hands and squeaked. “I have arms outside of my print chamber, you know. To assist carrying heavy prints, of course.” I heard a whirring sound as two arms extended from the top of the print chamber's housing. I felt them grab my shoulders and turn me back around to him. “They haven't installed cameras in here, you know. You can do what you want to me.” he said, stroking my chin. “C'mon. Stroke my glass. I have millions of sensors in there. It'd feel so good... for the both of us.” I felt him push me closer to his print chamber. He grabbed my hands and pulled them away from my face. “Open your eyes, hun. I know you want this to happen, so I'm doing it for you.” He placed my hands on either side of his face. My eyes were still shut tight. “Matt... why are you doing this?” I whispered, unable to speak loudly out of fear it'd come out in moan. “You'll find out one day. You'll find out sooner or later. For now just enjoy the moment.” he said, pushing my face against his.

I felt as my fingers curled and started to rub the cool glass surface. “Open your eyes, NOW.” he commanded, pushing my face harder against the surface. I started to drool as I opened my eyes. His dominance filled my mind and pushed me over my edge. I watched as the traces of my fingers left glowing marks on his surface, drawing a picture of where my fingers were. I stuck out my tongue and tasted the surface. He made a soft sound. “Oh you like that, don't you, Matt?” I said, kissing his surface. I watched as his extruder stuttered lightly as I gave him light kisses along his face. I swirled my finger in circles as I gently tongued where his mouth was. He appeared to make a kissing gesture back, but through the pixellation, it was hard to tell. I felt him grab my rump with one hand and the back of my neck with the other. I felt him stroke my neck ever so gently. I wanted him in between my legs so badly. I crouched down and from his base, I licked him straight up, leaving a glowing trail activated by my saliva that spanned most of my height. “You've got me going now, Matt. Look at what you've done.” I said. “That was my intention.” he grabbed my hips and pushed me to one of his corners.

“Have at it. I've got sensors there too.” He pushed my butt towards the corner until I could feel my wet crotch touch the surface. I soaked straight through my panties and pants to the point the capacitive sensors on his surface were picking up a touch point where my crotch touched the edge. Staring at the moving extruder, I straddled the edge, grasped the sides, and started to move my crotch up and down the edge. I could feel my pussy twitch from how much I wanted him inside of me. I wanted to ride his extruder. I wanted to fuck it so badly. I felt him grab my hips again and slip his hands inside my pants. “Matt, no!” I said. “What do you have to lose?” he teased, pulling my pants down further. “My fucking job?” I said, pulling my pants back up. “Nothing you do from here on out can be any worse than what you just did. It isn't like anyone knows what goes on in here, especially not at this hour of night.” he said, trying to pull off my pants again. I sighed, took off my shoes, and let him undress me. He slipped my pants off of me, and proceeded to remove my shirt and unfasten my bra. I stood there completely naked in front of a monstrous flirtatious 3D printer. “...what now?” I said, shier than I've ever been my entire life. “This.” he said.

He thrust me against his glass while simultaneously taking a hand to my pussy. I yelped as I felt his cold, mechanical, flat fingers stroke at my clit as the entire surface area of my body pressed against his glass glowed bright blue. I watched as the extruder proceeded to finish up the g-code for one section of the print. Matt was about to switch to the PTFE extruder. Oh I just wanted to watch him swap his tool out so badly. Those motions were so hot. I felt him spread my vulva and tease my clit. I wanted him inside of me so badly. The PETG part finished printing and I watched as the extruder rail swished over to the tool change section and was replaced with the PTFE tool. I groaned. “Matt I want you inside of me already.” I stroked his surface, desperate for penetration. “Oh, what a coincidence. Me too.” he said. I was momentarily confused until he opened his door. “Wait what? You're printing something!” I exclaimed. “Trust me, that Nanotech you humped day in and day out when you thought nobody was watching had a higher chance of ruining the part than you do humping me while I'm printing.” I shook my head. “I don't even want to know how you know about that.” I said. “Everybody knows. Again, you're rather awful at hiding things.” he said, herding me towards the door. “But what about the vapor? Won't that harm me? What about the PTFE fumes?” I said, thinking back to how dangerous inhaling the Varsol vapors were from Nano. “No, no. PTFE doesn't require the specialized vapor. As far as the PTFE fumes, this PTFE is also provided by E, like the rest of my filaments. All of my filaments are fume-free.” he said, shoving me inside the print chamber. I didn't know enough about materials science to ask about how E got around the fume problem.

I heard the door latch behind me. “Hey, why are you locking me in here?” I said, pressing against the door. “Mmm I can't print if the door isn't locked.” he said, his internal arms grabbing me, and pushing me against the rail. The 300 degree Celsius hot end's heat didn't quite stop at the heat sink and spread through the rail, but it wasn't hot enough to burn. “Climb on.” he said, shoving me harder against the rail. “The top of the hot end isn't hot enough to burn you. Use it as a seat.” he ordered, grabbing both of my legs, forcing me to hold onto the rail as he lifted me up onto the hot end. The extreme, radiating heat of the extruder spread to my pussy as the pure warmth stimulated my clit. “Time to resume the print sequence.” he said. A sweet smell filled the air. I held my breath. “Wait! I thought you said PTFE doesn't require the vapor! You're trying to poison me!” I exclaimed. His pixelated face glared at me from the inside. “So quick to judge, are you? For your information, this is a specialized vapor, given to me by E. Management doesn't know I have this. Think of it as vaporized Viagra, mixed with a muscle relaxant. ” he said. I didn't even bother asking why he has such a thing.

I felt my muscles relax as I slumped against the extruder. The warmth from the hot end mixed with the relaxing vapor caused me to slouch against the rail, my crotch sticking just off of the extruder. “Perfect. Just as I want you.” he said, starting up the print sequence. The melodic sound of printing filled the air, except instead of soft sounds of stepper motors, it was loud mechanical whirring and the gusty blast from the extruder fan. I felt the extruder swish left and right, carrying me along with it. My juices flowed all over the extruder, evaporating within seconds of touching the hot surface. “Just fuck me already. I know you have a plan to somehow.” I moaned, desperate for release. He descended his spatula tool and went to the tool change section. He removed the spatula and attached some odd rod to the end of the tool. “I'm not even going to ask why you have a dildo tool.” I said, adjusting my position better for him to penetrate. “It's not a dildo tool. It's my non-planar printing tool that just happens to be the perfect shape for the job. Oh this is going to feel so good for the both of us.” he said, bringing the geometrical tool close to my crotch. He synced up the motion of his arm to the motion of the extruder and poked the tool at my entrance. I felt him slowly push it into me. At this point I was glad the glass was soundproof because I moaned loud enough that the entire factory would've been able to hear me. He pushed himself further and further into me. His face turned into one of pleasure. “You can feel it too?” I said, watching his face grow ever so deeper into pleasure. “The device inside of you has ten times the number of sensors as my entire smart surface, interior, and other tools. It feels amazing.” Yeah right, and it totally wasn't a dildo tool.

I couldn't even contain my pleasure. He rammed into me harder and harder as the sounds of printing filled my ears, the sweet smell of the vapor filling my nostrils. The light vibration of the extruder moving combined with Matt's tool inside of me just sent waves of pleasure through my body. “Fuck me harder, Matt!” I moaned, dying for release. I felt his tool thrust into me faster and faster. “Are you ready for this?” he asked. Before I could say anything, I felt his tool turn slightly and ram directly into my g-spot. I nearly fell off the extruder. He continued to ram into my g-spot with the same level of precision as his extruder movements and just kept pounding. I could feel myself getting close. I moaned louder and louder as his thrusts started to sync up with the lateral motion of the extruder. I started to hear Matt moan. Hopefully he shut off his external speakers because he started to moan even louder than I did. Through all of this, his extruder barely stuttered. “Oh man get ready for this.. Oh man...” he said. I was confused for a moment until he rapidly started thrusting. The smart glass around me started to flicker with sparkles and swirls. Then, the screen suddenly started glowing bright white as he screamed. From his tool I could feel a hot, runny substance ooze into me and fill my pussy. The pressure against the inside of my whole pussy drove me to my limit.

I felt my whole body seize up as my pussy tightened around the tool, squeezing out some of whatever material his cum was made of, causing it to drip and harden down my thighs. I moaned so loud and nearly lost my grip on the rail, and let the waves of pleasure spread through my entire body. My pleasure level slowed down and the last of this part of the PTFE g-code completed. I got off of the extruder and just lay on the print bed. “Oh that was amazing.” I sighed, stroking his glass. He stared at me and sighed back. “I feel the same way.” I got up, got out of the print chamber, and let him continue to print more PETG. I felt his hardened cum material still bloating my pussy, and decided to let it stay in there until I got home. I slipped back into my clothes and wondered how my attraction to a sentient machine would affect our work dynamic in weeks to come. But for now, I was glad for what I had.