Wash Optimization

washing dynamics get the most from your part washer wash optimization strategies will help you get the best results from your part washer to do so, you must first understand what the part washer is doing in its wash cycles wash cycle steps the smart part washer cleans liquid resin from parts with a cyclical repetition of four basic steps 1\ vertically submerging into solvent agitates solvent along vertical features wash cycles and profiles 2\ spin in solvent alternating directions every few spins agitates solvent with centrifugal force along horizontal surfaces 3\ vertical lift from solvent removes resin from vertical features 4\ spin in air alternating directions every few spins removes resin with centrifugal force from horizontal surfaces build layout the spinning steps in the wash cycle can be both an advantage and a hindrance to achieving the best wash results learn how to use spinning to your advantage centrifugal force the part washer utilizes centrifugal force , spinning parts both inside and outside of the solvent during the wash cycle when laying out parts on the build platform, consider the effects of spinning to achieve consistently clean parts dynamics as the part washer spins the platform, parts at the edges of the platform move more quickly than parts at the center because velocity increases as you move farther from the platform’s center, place parts near the platform edges (as far from the center as possible) to achieve maximum solvent flow speed over your parts parts placed at or near the center will not be cleaned as well as parts placed further from the center avoid the center the only area of the platform that doesn't get the benefit of centrifugal force is the center best wash results avoid the center as can be seen in this layout example take advantage of spinning features such as blind holes often require touch up after washing use centrifugal force to your advantage and aim blind holes outwards so the spinning throws resin out for you this example aims the blind hole towards the platform edge on both sides part drag the diagrams below illustrate the effect of drag on solvent speed as it travels over a part in different orientations the orientation of the parts will dictate how much drag occurs as they push against the solvent fig 1 fig 1 the larger profile larger profile impedes solvent movement around the part fig 2 fig 2 the smaller profile smaller profile cuts through the solvent like a knife, allowing more solvent to move quickly over the part the larger profile presented in figure 1 figure 1 creates a large amount of force on the part, putting the part at risk of detaching from the platform the much smaller profile presented by rotating the part 90 degrees in figure 2 figure 2 generates much less force, slicing through the solvent like a blade as it is spun carbon recommends minimizing the profile of your part in the xz plane to minimize drag the figures below are another illustration of how larger profiles make contact with more solvent, like the sail of a boat catching wind fig 1 larger profile fig 1 larger profile makes contact with much more solvent, pushing against the part fig 2 smaller profile fig 2 smaller profile pushes against much less solvent layout examples the layouts below illustrate two different approaches to arranging parts on the platform optimized layouts should arrange parts to minimize drag as the platform spins in the solvent keep parts away from central area of the platform central area generates the least shear force resulting in the least amount of solvent flow parts printed in the red zone are unlikely to be fully clean after washing fig 1 parts oriented along x axis fig 1 parts oriented along x axis not optimized for washing not optimized for washing maximizes parts per build maximizes drag, inhibiting solvent flow parts in the central red zone are unlikely to be fully washed fig 2 parts oriented along y axis fig 2 parts oriented along y axis well optimized for washing well optimized for washing fewer parts per build y orientation greatly reduces drag as parts are spun parts removed from central red zone remaining parts are highly likely to be completely clean dental model design for dpr 10 carbon recommends using the following settings when designing dpr 10 dental models for use in the smart part washer with daa solvent solid models solid models can be printed and washed in the daa part washer without modification hollow models below are the additional 3shape dme settings for the vent holes (“doors”) shape cadcylindricalsidedrainhole3x3mm center height 0 spacing 10mm for non 3shape designs create 3 mm diameter half circle and make flush with the base of the part space the holes 10 mm apart, around the entire circumference of the part create 3 mm diameter half circle and make flush with the base of the part space the holes 10 mm apart, around the entire circumference of the part wash cycles and profiles the smart part washer provides a few options to choose the best wash for your application spin intensity number of cycles when to use solvent total solvent exposure time never exceeds resin protocols there are two methods for adjusting the wash wash cycles are selected at the part washer, and wash profiles are assigned to the project build in print controls docid\ n9rcre4j391hmxwvp udg for special wash conditions wash cycles wash cycles are chosen at the part washer and can override a wash profile assigned to the project smart part washers in operation docid\ wqf74frjkkxuo1vajrdqa cannot be adjusted at the washer and must make all wash selections during print prep the smart part washer has 3 wash cycles gentle, default, and extreme the different wash cycles allow you to choose the spin intensity used during washing gentle uses the lowest spin intensity and subjects parts to the least amount of force but also provides the least intense cleaning default uses a moderate spin intensity and works best for most projects best for most projects extreme uses the highest spin intensity and puts parts at greater risk of detaching from the platform but provides the most intense cleaning gentle gentle uses the lowest spin intensity which subjects parts to the least amount of washing force this cycle is best for the parts types pictured below tall, thin parts with small cross sections at the platform tall, thin parts are more susceptible to part drag and centrifugal forces small contact area with platform means weaker adhesion parts likely to detach from the platform with faster spinning thin strut lattices printed in elastomers thin struts of lattices are prone to tearing during washes at higher speeds examples 1 and 2 are likely fine to wash on default example 3 is thin and best suited to gentle the struts are thin enough to have noticeable swelling with solvent exposure sil 30 parts gentle cycle is recommended to wash sil 30 docid\ objymillswpupjainn2te parts because they are often printed on release film docid\ yrnqplrg4ymfck1m5tccv release film provides lower adhesion strength than the platform this makes parts more susceptible to detaching from the platform during washing cycle default default is the standard washing cycle and works for the broadest range of part geometries the default cycle is best for first time washing a new set of parts if you are unsure about which washing cycle to use, try default platforms with a variety of different parts extreme extreme is the most intense washing cycle this cycle is best for large cross section on platform this creates strong adhesion to the platform so the part does not detach when spinning at a higher speed dense bed of supports dense supports provide robust attachment of part to platform short parts these parts will not create large amounts of drag during spinning and are less likely to detach from the platform blind holes or interior cavities these features are more difficult to clean requiring greater speed extreme wash has a higher rotational speed that may put parts at risk of detaching from platform ensure parts have a strong platform connection wash profiles unlike the wash cycles controlled on the part washer display, wash profiles are assigned to the project build in print controls docid\ n9rcre4j391hmxwvp udg during print preparation wash profiles cannot be selected at the smart part washer the smart part washer has 4 wash profiles plus the standard wash cycles gentle, default, and extreme air spin only extreme extreme 5 cycles extreme single cycle gentle solvent submerge only default compatibility wash profiles are available in v1 36 docid\ pkkevemqlil7ends8gl8p and above and are compatible with all platforms and accessories compatible with the smart part washer this includes m1 and m2 platforms m3 platform + adapter part washer basket air spin only air spin only spins parts without solvent exposure the air spin only profile is best suited for parts that are very sensitive to solvent exposure epu resins have a large amount of surface area lattices use the air spin only profile as a pre and/or post wash cycle with a solvent wash assign the air spin only profile to the project the wash profile will be the default wash override the wash profile by selecting one of the wash cycles (gentle, default, or extreme) at the part washer to run a solvent wash before and/or after air spin the smart part washer is not designed to be used to only run air spin cycles, as this could result in a build up of liquid resin on interior washer walls alternate air spin only cycles with solvent based cycles for washer health if you have an application that may be a candidate for solventless cleaning, contact carbon support docid\ k86zo5vcyn wqjl3vdgft to discuss alternate cleaning solutions extreme 5 cycles extreme 5 cycles is similar to the extreme wash cycle but uses five shorter cycles instead of three longer ones additionally, this profile uses increased wash torque and a longer final spin the total solvent exposure time is the same in both cases if the extreme wash cycle does not provide adequate results, extreme 5 cycles may provide the intensity you need this profile is best suited for parts that have small features and/or holes small areas facing the platform vertically oriented features that will benefit from more dunking cycles connectors are a prime example that meets this criteria section cut through a build of connectors extreme wash has a higher rotational speed that may put parts at risk of detaching from platform ensure parts have a strong platform connection extreme single cycle extreme single cycle is similar to the extreme wash cycle but only uses one cycle instead of three the total solvent exposure time is the same in both cases the single cycle results in the fastest wash time this profile is best suited for parts with very short print times, which is usually a tiny part this example prints in about the same amount of time as the wash cycle to keep production moving, the print and wash times need to be in sync small parts with short print times solvent submerge only as the name implies, the solvent submerge only profile washes with the vertical dunking motion only, without spinning if the gentle wash cycle does not provide adequate results, this profile may provide the best wash the solvent submerge only profile is best suited for tall, thin parts with small cross section at the platform sil 30 parts tall sil 30 part with a small cross section on the platform default the default wash cycle will run as normal note that when a wash profile is selected for a project, that profile becomes the start wash cycle unless more wash options is selected to run a standard wash cycle instead start wash default default when no wash profile is chosen start wash \[wash profile name] \[wash profile name] when a wash profile is selected