LDsports 开户Your model should be the minimum and maximum bounding box sizes. The maximum bounding box represents the largest model that that we can manufacture. The minimum bounding box size is the smallest dimension in which we can manufacture in this material.
Minimum Supported Wall Thickness
Minimum Unsupported Wall Thickness
A supported wall is connected on at least two sides. Walls in your model must meet the minimum measurements to ensure it survives the printing and cleaning process. Thin walls are prone to warping during printing and are fragile to clean. Objects that meet the minimum requirements may still be rejected based on the geometry in which case our production team will communicate with you if the design needs improvements and can assist you to strengthen your model.
Minimum Supported Wires
Minimum Unsupported Wires
LDsports 开户A geometry considered a wire when its thinner in both unconnected directions than its length. Wires that are under our suggested minimums are prone to breaking in the cleaning process, or warping.
Min embossed detail
1.0 mm high & wide
Min engraved detail
1.5 mm high & wide
We recommend these minimum measurements for details like embossing or engraving, based on printer resolution.
Single Escape Hole Diameter
Multiple Escape Hole Diameter
Pressurized air is used to blast excess powder from models that are hollow, or contain hollow cavities. In order for us to safely do this, escape holes need to be larger than 4.0 mm in diameter. For models larger than 50.00 mm³ we require two or more escape holes at least 3.00 mm in diameter.
A single escape hole at the end of a cavity will not allow material in the corners near the escape hole to fully escape. So we recommend multiple escape holes at both ends of the cavity.
Clearance is the space between two parts, e.g. space between gears or a ball and socket joint.
1.5 mm thick, attached in at least 2 places per part
Sprues are wires that keep two models together. Sprues are more likely to break compared to other wires because they typically connect parts with high mass on either side. For this reason, they need to be thicker than our minimum wire thickness.
INTERLOCKING AND ENCLOSED PARTS ?
TPU is printed with an SLS process that uses a laser to fuse together nylon powder. This enables interlocking parts, as long as the distance between them is greater than the indicated minimum.
MULTIPLE PARTS ?
Up to 250.
± 0.3- 0.7 mm for every 100 mm
Please note: Geometries tend to print larger than designed and small features (close to the minimum guidelines) experience greater dimensional variation than large features.
LDsports 开户Print Lines or "Stepping"
A "staircase" effect, or print lines, can occur on the surface of your print. These can become more pronounced on curved and angled surfaces.
LDsports 开户Preventing Warping
LDsports 开户Making your design more stiff (increasing torsional rigidity) will reduce the risk of warping. Longer walls need to be thicker than short ones.
Wiry and Delicate Parts
Thin, wiry models with weak geometries are very difficult to print without damaging the part in the cleaning process. These models typically require multiple reprints which delays production. Parts that eventually print successful are very prone to breaking during shipping. For these reasons, parts that are too delicate to print may be rejected and our staff will work do their best to help you improve your model for 3D printing.
LDsports 开户Avoid "Spikes"
If your model has spike-like geometry where the spike is longer than it is wide, it's possible for it to break in the cleaning process.
Our production team does their best to evaluate your product and orient it to optimize either dimensionally accuracy or aesthetics depending on the application. Generally, the top surface will have more visible stepping than the bottom surface. The mating surface and other important features like holes are the most accurate when placed in the horizontal plane.
LDsports 开户Holes & Small Holes
We cannot clean holes that are too small compared to their depth. Additionally, tubes with corners can be difficult to reach and we may not be able to fully clean your model.
We recommend creating multiple access points to holes and small tubes so that we can properly clean your model.
Our printers operate with two lasers at the same time. If a product in the printer is located in the overlap plane where the two lasers meet, miniscule calibration differences between the lasers may create a visible line on the surface of the product. We aim to arrange products in the printer away from the overlap plane. However, products larger than 33cm long in any direction may be too large to fit in one laser's area, so you may see a visible line along the overlap plane on your product.
Please do not design threads into your TPU parts as threads printed in TPU will not be functional.
LDsports 开户How will the price of my model be calculated?
Material Volume - the amount of material needed to 3D print your product
Machine Volume - the amount of space your product takes inside our 3D printers
Number of parts - a part is a piece of a model that can be separated from other pieces of the model
Production - associated production costs including labor; quality control; machine maintenance; general utilities; and other supporting services required to 3D print your product