Cold extruders are suitable for all scales of operation from household- to small-scale, but extruder-cookers are much more expensive and are likely to only be affordable by larger-scale producers. In the TFT firmware, I will change the settings as follows: In Marline mode everything is fine. It stops me from extruding if my hotend temperature is below 170 degrees. Works as expected. This method occurs at ambient temperature or below the metal’s recrystallization temperature to form the metal into the desired shape. 2) Is it possible to eliminate, or adjust, "the cold extrusion prevented" block on manually extruding fil using pronterface? With my setup it almost completely prevents me from manually extruding. Station 7—Finishing Blow Large shoulder is trimmed forming sharp-cornered hexagon for wrenching. A combined cold extrusion process is experimentally visualized to manufacture a drive shaft. repeats 16 times total as xi counts down by 1. The printer will try to work but it's not enough power for things to heat up. #define PREVENT_DANGEROUS_EXTRUDE //if PREVENT_DANGEROUS_EXTRUDE is on, you can still disable (uncomment) very long. • You are forward, cold extruding Al-1100 (K = 140 MPa, n = 0. if printer is "misconfigured" for 1 step/mm, then G-Code must contain edaquately scaled value E315. 2 % more, or similarly said, the extrusion needs to be multiplied by 1. 0. What am I missing here? 3) Finally, possibly related the the min temp issue above, why is the extruder not extruding while printing?Cold Extrusion: It is the process of shaping metal by striking it with a slug. reReddit: Top posts of August 24, 2022. When you write scripts, you need to know the absolute / relative state of both extrusion and position. 28th 2016, and it has been working great. 0. 5. CENTRAL BURSTING DEFECTS DURING COLD EXTRUSION IS-degree semicone angle die will prevent the defect. 078 E412. When you write scripts, you need to know the absolute / relative state of both extrusion and position. . What am I missing here? 3) Finally, possibly related the the min temp issue above, why is the extruder not extruding while printing?Cold extrusion override. I tried googling this issue. You've not reference your temperatures, so consider to use a test model and print at different temperatures. I tried M302 as well. 3. Hot extrusion can be used to create shapes that would be. May 02, 2017 01:48AM. In the current metal-forming industries, productivity, product quality, and production cost are three overriding issues. What am I missing here? 3) Finally, possibly related the the min temp issue above, why is the extruder not extruding while printing?2) Is it possible to eliminate, or adjust, "the cold extrusion prevented" block on manually extruding fil using pronterface? With my setup it almost completely prevents me from manually extruding. 11:07:10. aka "it doesn't work". Recv: ok Send: N62062 G1 X159. Process. 5. 47 Y79. #define PREVENT_COLD_EXTRUSION #define EXTRUDE_MINTEMP 170 So-called “cold extrusion” can damage a machine in several ways, but it usually just results in gouged filament and a jammed extruder. Arentoft M, Wanheim T (1997) The basis for a design support system to prevent defects in forging. i tried to change the timeout times but i didn't fix anything. Also, did PrintRun report anything "odd", like a MINTEMP triggered, or a "Cold extrusion prevented"? Link to post Share on other sites. I'm using octoprint and running Vanilla Marlin 1. Extrusion is a massive forming procedure, in which the material is. Newer firmware versions have several tests that can prevent extrusion. I am aware that stepper drivers can briefly pause motion of the stepper motors to cool off but in this case the pause only start to happen after pronterface shows. 15. To prevent casting shape defects, check to make sure the plate pattern mounting and alignment are the same. I expect that almost everyone who has tried to test an extruder while cold has run into this. Li [3] used a multi-plate cold extrusion. Also changed the feeder tube and connectors, changed the tip several times. Station 5—Backward Extrusion Center hole is formed through backward extrusion. Cold extrusion prevention not working #1846. In the case where the filament does not come out of the printer after the third step, we recommend using the Move 10mm. Cold extrusion produces parts with close tolerance, high strength, and requires minimal finishing. This assumes, of course, that a G21. Contributor. A clogged nozzle is a very common cause of under-extrusion because it blocks the path where filament needs to flow. Cold extrusion and hot extrusion this are the two types of extrusion methods in the extrusion technology. I get a little bit more stringy-ness with the. I read that the. If I use the SD adapter or print off the mainboard, it's fine. 01667*83 Recv: start Printer sent 'start' while printing. 2) Is it possible to eliminate, or adjust, "the cold extrusion prevented" block on manually extruding fil using pronterface? With my setup it almost completely prevents me from manually extruding. I expect that almost everyone who has tried to test an extruder while cold has run into this. My first step would be to try ducting so the all the air from the fan flows through the fins of the heatsink. 1 (a), deformation of the billet during. You can then set the temperature you want from Pronterface or whatever software you are using - the GCode produced will not attempt to control the temperature. It just works transiently, like a few seconds at initialization, just enough to partially load the filament and then it stops rotating = no sound anymore and no extrusion. 4 draufgespielt und alle funktionier bis auf den extruder, wenn ich Extrudieren soll bekomme ich diesen fehler. Fix the actual problem, which is that Marlin has a safety feature to protect the extruder and hotend by preventing extrusion when the temperature is below a certain margin. Was fixed in #24045 until code was modified in 1a7052b Fixed again here. You've helped in the past and I've been having another problem with the r1+. What is the problem? Heating is always turned off for 20-30 minutes of printing, when the part is already printed on 85% What did you already try to solve it? I checked the printer's firmware settings again. Requirements. It is widely used in cold extrusion processes because it works well as a solid lubricant and mold release agent. 00, xi=186, y1_i=0) echo: cold extrusion prevented. Try upping your motor current. They're digital electronics, there's no such thing as. 078 E412. 70 mm for the internal spline region, a preform is adopted to prevent excessive accumulation of plastic deformation. I will try to find a better pipeline for this communication tho, I will let you know if I find other ways. Starts throwing cold extrusion errors and sometimes crashes into the bed if you don't catch it. Station 6—Forward Extrusion Taper is formed above large shoulder. 550 Y46. When I run a print, sliced on Sli3r, I am getting cold extrusion prevented errors. 00 T500. M302 P0 S170. J. What did you already try to solve it? I checked the GCode and the temperature and wait for temperature are set. What can cause sporadic Cold Extrusion Prevention errors-Simple Metal-Cura . Next up, we will delve deeper into the reasons that can cause your Ender 3 to extrude inconsistently. The mechanical properties have been. What am I missing here? 3) Finally, possibly related the the min temp issue above, why is the extruder not extruding while printing?I spotted the log message have an "echo: cold extrusion prevented" go flashing past! So, I'll update the firmware to drop the temp back down to it's prior 170 amount, and with the new stepper driver in there, I think I'll be set. It takes around 138 Kcal (0. for aluminum and lead exclusively c. 1. 1 Y200. In the combined cold extrusion of a piston-pin, a lapping defect, which is a kind of flow defect, appears by the dead metal zone. usually there are cold extrusion prevention temperatures at play in he firmware, but that doesn't explain that the hot end heats up to 175 °C. Not sure if there's a way to have it stop the print completely though. The A4988 driver has the right voltage at 1. Console just shows that. Registered: 10 years ago. Types of extrusion Cold extrusion Warm extrusion Hot extrusion Mechanical change of material owing to its slow movement under strong pressure and formation of the new set forms. ahoeben. This filament causes severe stringing and oozing of the hotend. What did you already try to solve it? Is it possible to deliver last bit of the Goode to complete the print? Have you tried running in safe mode? The print is. Inspect and replace any defective molds before casting . OK, yall. The option PREVENT_COLD_EXTRUSION it will directly prevent us from extruding material if our hotend does not reach the minimum temperature defined. With regard to economic and ecological aspects, cold forging represents a promising approach compared to conventional cutting processes for producing highly-loadable gears. The extruder motor will not turn on until at least 175 °C. There is no such thing as cold — cooling means removal of energy. General Discussion. HME has already been demonstrated as a robust, novel technique to make solid dispersions in. Select the Move 10mm option from the Extruder menu, which should extrude 10 mm of plastic under ordinary circumstances. 00 E5000. You may also be running into cold extrusion prevention with those temperature ranges; The printer simply will not extrude below a certain temperature, the extruder does not move and the serial log will show "Cold extrusion prevented". This will not stop the "cold extrusion prevented", which should be set appropriately in Marlin as outlined above. For extrusion to work, you need - All thermistors connected. Sorted by: 2. Warping occurs when the adjoining layers cool at rates that differ. b-morgan July 31, 2020, 7:51pm 3. primarily for short run production b. Here's the log when the print got interupted happened: 11:07:10. This can be achieved in many ways including, but not limited to: understanding the anatomy of the 3D printer (including understanding the extruder), learning the tolerances of your printers, and properly storing your filament. Though there are several methods of cold extrusion, for most manufacturers, there are three basic types – forward or direct, backward or indirect, and upsetting. Welcome to the Ender 3 community, a specialized subreddit for all users of the Ender 3 3D printer. 1: Some typical signs of heat creep on the filament of a direct drive. More sharing options. From there I put in G1 E100 F100. 18 failed prints, tried different colors. b-morgan July 31, 2020, 7:51pm 3. Same thing happens to me if I print from the TFT35 E3 usb port. . 0000 F360 RECEIVED: ok RECEIVED: echo: cold extrusion prevented cold extrusion prevented RECEIVED: ok RECEIVED: ok SENT: G1 X40. You can use a simple g-code command to allow cold extrusion. Understanding Jams. For example, if the friction between the material and die is small, Would you set the Cold Extrusion Warning to a once or twice print? Currently it goes into a massive print loop. 0 - 1. You might need to perform a cold pull to clear out the nozzle or even use a needle. The printer is unable to pull the filament due to external factors. check that the print cooling fan isn't pointing at the heater block or the nozzle. Prompts with "Hotend too cold!" when the hotend is to cold, as It should. Sorted by: 2. 98065*84 Recv: echo: cold extrusion prevented Recv: echo: cold extrusion prevented Recv: ok Send: N62063 G1 X159. Increase your printing temperature and make sure that the filament is melting completely. High temperatures can lead to excess wear and tear of the mold. The log says echo: cold extrusion prevented when trying to move the stepper motor. Tab shows a graph of the bed based on stored values. I removed that check for this specific feature and it compiled, was small enough and seems to work. ,. If the printer is powered, check if the heated bed thermistor is still in place. M302 ; report current cold extrusion state M302 P0 ; enable cold extrusion checking M302 P1 ; disable cold extrusion checking M302 S0 ; always allow extrusion (disable checking) M302 S170 ; only allow extrusion above 170 M302 S170. 02. Installed a clean octoprint I was looking for a solution on the Internet, I did not find it. Top Posts Reddit . En marlin se puede modificar la temperatura minima de segura de extrusion #define EXTRUDE_MINTEMP 170 En otros firmwares me imagino que también pero desconozco el parámetro. Re: Marlin Firmware "cold extrusion prevented" and other Problems In Slic3r, to have manual control over the temperature, set Temperature = 0 in "Printer and Filament" settings. So-called “cold extrusion” can damage a machine in several ways, but it usually just results in gouged filament and a jammed extruder. Switch off the hot end, but keep light pressure on the filament with your fingers to keep the nozzle full. 3. After troubleshooting every bit of hardware on the danged printer. Here is an excerpt of a small portion for an example: ion prevented echo: cold extrusion prevented echo: cold extrusion preve. This paper presents a study on Surface Integrity (SI) within the context of cold extruded billets with two different materials, steel and aluminium alloys. Hi all, I’ve been working with a Mini, trying to do a paste extruder conversion. This process can be used forDuring a fatigue process, residual tensile stress can promote fatigue crack initiation and propagation, whereas compressive residual stress (induced by shot peening or cold extrusion), can prevent the component from premature failure increasing it. Clogging happens when filament residue builds up and blocks the nozzle, limiting the flow of filament. 495 E0. 0. serial. 641 Y85. @dc42 That doesn't seem to work. We bought the printer Sept. Hi, I just change to a new nozzle (0. But you need to be careful to prevent burns. Reply Quote. After a while (> 20 minutes) the temperature of extruder and bed drops suddenly. Filament retracting when you think it should be extruding is a classic sign of a relative / absolute extruder setting ( M83 / M82) mismatch. 2. I tried lowering the temperature to 160 degrees,but got the message "cold extrusion prevented" in pronterface. Definitely quite useful as it can help mitigate problems, but it does raise some questions once in a while. The proposed test is a cold extrusion process utilizing a selected trapped-forward extrusion die, where load versus stroke data is collected. Mater. The versatility of cold extrusion lies in the possibility of forming any powder materials. 868 Y64. The cold extrusion process of internal thread without chip processing has gradually become the development trend of internal thread processing. I'm trying to follow Teaching Tech's delightfully robust tutorial on tuning slicer settings and hit a snag pretty early. 808 E411. M104. With this option, the extruder motor won’t move if the hotend is below the specified temperature. The best way to prevent 3D filament jams is to notice them ahead of time. Contact jim. . 0166793 Recv: Error:Line Number is not Last Line Number+1, Last Line: 245951 Recv: Resend: 245952 Send: N245952 G1 X71. #define PREVENT_COLD_EXTRUSION A display that uses menu_motion. Heat the hotend to the temperature suitable for the filament type you have been using. To reduce fatigue and to prevent the die. When you write scripts, you need to know the absolute / relative state of both extrusion and position. I have ran auto-tune PID to get good values and have entered them into my configuration file. Until now. When central bursting occurs, the load-carrying capacity of the part is drastically reduced. If you used Pronterface, you would have seen a warning message saying "cold extrusion prevented" so you would have known about the problem immediately. 2) Is it possible to eliminate, or adjust, "the cold extrusion prevented" block on manually extruding fil using pronterface? With my setup it almost completely prevents me from manually extruding. 1 g/cm³. Apparently your 3D printer runs Marlin firmware. Some common uses…. . e. To prevent the seizure in extrusion of aluminium alloy billets, micro pockets are produced by texturing a die surface. It looks like the extruder may be extruding too much even though I did calibrate the E steps for the extruder. 526 Y46. Ask Question Asked 3 months ago. So far, I’ve gotten pretty much everything to work, and I’m on the home stretch except I can’t get it to extrude without having to heat up the nozzle (just dangling off too the side to prevent other errors the machine gets when it’s not connected). check conditionals_adv. Re-enable with. Copy firmware. Adjust extrusion. Prevention or reduction of nutrient destruction, together with improvements in starch or protein digestibility, is clearly of importance in most extrusion applications . Extruded aluminum is a metal shaping process that involves forcing a preheated or cold aluminum billet through a die profile that has a specific cross-sectional shape. h and disable/comment them out. June 2013 10:51. Override this setting with M302 if needed. So far, I’ve gotten pretty much everything to work, and I’m on the home stretch except I can’t get it to extrude without having to heat up the nozzle (just dangling off too the side to prevent other errors the machine gets when it’s not connected). a continuous extrusion process c. 9, manual mesh bed leveling enabled. The Pi needs an actual Raspberry Pi 5V Power Adapter. 1. An increase in friction between the material and the die will have an adverse effect on the prevention of central bursting. cavity to prevent backward flow of the material. The cold extrusion can be bypassed via gcode and with a variable directly. Extrusion comes out round and easy. 2, and the mutation probability is 0. net or (724) 651-9196. . It seems to have pertained to a few people using a raspberry pi, but was a known bug related to the pi. These results indicate that it is feasible to extrude CP-Ti at room temperature following warm ECAP processing, although surface cracking could. If there is no power to the printer, the Pi will try to give power over to the printer. What am I missing here? 3) Finally, possibly related the the min temp issue above, why is the extruder not extruding while printing?2) Is it possible to eliminate, or adjust, "the cold extrusion prevented" block on manually extruding fil using pronterface? With my setup it almost completely prevents me from manually extruding. You probably hit the 'PREVENT_LENGTHY_EXTRUDE' safeguard in Marlin and it defaulted to M600 pause for some reason, that gcode is telling the printer to extruder 1. Right before it quits, I get a series of "echo: cold extrusion prevented" errors, followed by : Early on, I did research into this and deduced that it was a failed thermistor. And then around "2018-05-21 15:42:00,666" things don't look so good for your T0 extruder. These values are less than the reduction ratio of the general extrusion process, which is 75% . Additional information about your setup. Set the temperature (and enable). Could you tell me when this will be fixed, or better yet, send an. 341 Y46. In the console, I got an echo : cold extrusion prevented and a bed thermal runaway. cpp The menu Motion | Move Axis | Move Extruder Prompts with "Hotend too cold!" when the hotend is to cold, as It should. Tab shows a graph of the bed based on stored values. Cold extrusion is a process done at room temperature or at slightly elevated temperatures with the assistance of Extruders and Extrusion Machines. 3 meters of filament in one shot. 21 Likes Received: 4 Hello again forum. Prevent Lengthy Extrude Cold extrusion misbehavior #1859. You probably hit the 'PREVENT_LENGTHY_EXTRUDE' safeguard in Marlin and it defaulted to M600 pause for some reason, that gcode is telling the printer to. Dormant; 0 35 posts; Author; Share; Posted April 24, 2012 · controlling extrusion, print, and travel speedsCold shot specifically can be caused by careless pouring, so ensuring the metal is poured smoothly can also help with this problem. Now lets think about this. if the instructed length of 100 mm is in reality 95 mm, the extruder should extrude (100 - 95) / 95) * 100 = 5. Preheating is done (200°C), and manual loading work, but extruder gear do not. TFT50 GD v3. To prevent this casting defect, design the casting mold with precision. Description With a display that uses menu_motion. For most aluminum cold extrusion processes zinc stearate is used as lubricant. Just enter the above code from your host software (pronterface or repitear). Plastics extrusion is basically: a. here is the log when this happened, you can see the temperature dropping suddenly: > 01:02:37. 0166080 Recv: ok Send: N245953 G1 X71. Printer type MK3S Printer firmware version 3. For cooler filaments like PCL or this stuff - you can adjust the threshold with M302. M302 S0 ;turn off cold extrusion prevention G92 E0 ;reset the extruder to 0 G1 F600 E100 ;extrude 100mm of filament M400 ;finish all moves M302 S175 ;reset cold extrusion prevention With your E motor correctly wired and the nozzle removed (there is no heating) print the file. We can configure at what minimum. jerryfudd March 17, 2020, 7:31pm 3. In this paper, technological limitations related to risk of buckling and a new method of preventionTo prevent barreling, the lower part of the length was first extruded in three steps and then the upper part was extruded in two steps. I had a Y shift on the 4th layer, and was all clear of problems until nearing hour 2 of the print. Every 1st minute i get this warning “Cold. 8. Kennt diesen fehler jemand und kann mir jemand bitte helfen, dieser Fehler wird in Printer Interface ausgegeben. What am I missing here? 3) Finally, possibly related the the min temp issue above, why is the extruder not extruding while printing?2) Is it possible to eliminate, or adjust, "the cold extrusion prevented" block on manually extruding fil using pronterface? With my setup it almost completely prevents me from manually extruding. 00 Y500. Registered: 6 years ago. Non so come e quando, ma non c'è il comando M109 quello che attende l'arrivo a temperatura prima di andare avanti a eseguire altri comandi. Also uploading of gcode files and start printing is ok. 379 E411. 6 SD card or USB/Octoprint Print from SD Card, Octoprint is connected Describe the bug Occasionally after printing has appeared to c. The temperature graph shows the extruder. A two-in-one-out hot end should be OK but there could be a "cold extrusion prevented" warning on a regular dual extruder-dual hot end machine. Turning it off in the settings and saving the setting to the EEPROM does nothing, on every boot. Already a subscriber? Continue with the provider and email address you used when you subscribed. In due time, the other low quality wire broke from the fatique of the printer head moving. 4. OutsourcedGuru April 3, 2020, 1:04am 9. This method is used to press plastic metals, both in the cast and in the crushed state [9, 10]. Interesting update. 762 E0. , Kim D. 169 E. What am I missing here? 3) Finally, possibly related the the min temp issue above, why is the extruder not extruding while printing?Push the cold pull filament into the nozzle until you see some melt at the tip. I've swapped out the motor, the short motor-to-breakout-board cable, and the big e-cable. This is a symptom rather than the cause of the problem. 0336-----<I TERMINATE PRINT AT THIS POINT AS IT JUST CONTINUES TO PRINT COLD> As you can see it should just halt at M134 and M133. The forming operation takes place at room temperature, i. Add external extrusion pressureIt was indeed the cold extrusion setting, once I got up to 170 the extruder worked as it should. If you are experiencing extrusion problems during printing, you may hear a ticking sound at the feeder. RECEIVED: echo: cold extrusion prevented cold extrusion prevented RECEIVED: ok SENT: M105 SENT: G1 X76. And if things don't heat up then no extrusion can happen. h with the lines. Hello u/Hot_Meaning_3469, . I at least could check the status. However, a cold extrusion procedure is employed to create ready-to-eat materials. With M83 (E Relative), it means extract 15mm of filament over the distance traveled. By "2018-05-21 15:43:13,670" the temperature has reached the fatal 170C threshold of plasticity and the failsafe kicks in. 258 Y78. I tried to print without an octoprint, everything works well. This topic has been deleted. Source. I just received Snapmaker 350 and I have a big issue : the extruder gear is not working. That sucks. Two billets have a smooth surface without surface defects, while the third one has a crack near one end. 641 Y100. These partial blockages can cause inconsistent extrusion rates resulting in insufficient plastic being printed. Remove the Bowden tube from the extruder. It is a cylindrical component with the characteristics of uneven thickness and a small ratio of height to diameter. No extrusion from G-code for cold extrusion application in soldering robot. Cold extrusion prevention manifests itself as the extruder not moving when commanded to move manually. . Plot disapears and it says "Please wait, retrieving current mesh". Lubrication in cold extrusion of steel partsLubrication plays an important role in cold extrusion since efficient lubricants prevent direct metallic contact, with the reduction of extrusion loads and wear, and the improvement of products quality and tools life. 9. Update While printing, and the temperature having dropped. As a reminder, most common print quality issues can be found in the Simplify3D picture guide. It was working great until a few days ago, when a print stopped without any reason and the target temps were set to 0°C. Hi, I was referred to this forum with my problem. Just enter the above code from your host software (pronterface or repitear) and you. Prevent Cold Extrusion . Due to the requirements of a face width of about 92. 05418*84 Recv: echo: cold extrusion prevented. Plot disapears and it says "Please wait, retrieving current mesh". Says it's disabled but its not because it keeps giving me a warning and asking if I want to heat the hotend. I can see the temperature jumping all over the chart. Was fixed in #24045 until code was modified in 1a7052b. clefranc opened this issue Apr 8, 2015 · 9 comments. 1. Two smaller shoulders are formed and stem is forward extruded. The best method that can prevent the flow defect is removing or. 0 Z0. Another method involves using acetone to dissolve the PLA. 2) Is it possible to eliminate, or adjust, "the cold extrusion prevented" block on manually extruding fil using pronterface? With my setup it almost completely prevents me from manually extruding. Another advantage of extrusion cooking is the destruction of antinutritional factors, especially trypsin inhibitors, hemagglutinis, tannins, and phytates, all of which inhibit. 180 E0. Hello @brightspark! The bed does not heat up so the the thermal runaway protction hits. Cold extrusion is typically used for metals that are easier to cold work, such as steel and brass. 1) notch in filament where gear spins in soft filament. Printing from SD card MB SKR 3 EZ does not start. Zinc stearate is a white powder with a very low density of approximately 1. This screen has a option to proceed and cold extrude, which did not work. The dies can be heated (250–300 °C) and peened to prevent minute cracks, possible in cold working. 4) soft filament bunches in open area. Please add the first 30 or so G-code lines. Chapter 1: Overview of Extruded Aluminum. If I pause the print and try to extrude, it will echo a "Cold Extrusion Prevented" message even though the temperature is reporting normal. Marlin firmware default code has build in protection against extrusion below a certain temperature (usually 170°C) as defined in the printer configuration: // #define PREVENT_COLD_EXTRUSION #define. By establishing a simplified mechanical model and a finite element model, the load change. $\begingroup$ So I figured out why I am having the too long extrusion problem but I am yet to find a solution. 2%, respectively, in comparison with the gears that were produced by machining. 52 mm in order to secure the extrusion length on the lower shaft. 818 Y78. Printing through Octoprint (1. The fix would be upping the 'EXTRUDE_MAXLENGTH' variable to something above what that Gcode specified. The code is simply telling the printer to push 100mm of filament. 16 kWhr) to heat 2. Copy link fotis400 commented Apr 7, 2015. 1. 48 Y53. Having said that, I am having trouble with the temperature requirements which I am currently trying to disable. With my extruder cold, I send a command to extrude. 7741*105 Recv: echo: cold extrusion prevented Recv: Error:Thermal Runaway, system stopped! Heater_ID: 0 Recv: Error:Printer halted. Cold extrusion misbehavior #1859. its for Filament Change plugin - it doesn't work because it blocks the extrude command. With M82 (E Absolute), it means move the filament to the position 15mm after the zero location. Posts: 2,569. To classify aluminum types beyond the net shape and strength of the alloy, temper is used in the naming series.