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Quick run through of building and using a vacuum former to create canopies for RC airplanes. However this vacuum former could be used for any project.
Vacuum Former Parts:
* Shop Vac Universal adapter (http://www.lowes.com/pd_37045-20097-9068711_1z0x55h+1z136r9__?productId=1085001&Ntt=shop+vac&pl=1¤tURL=%3FNtt%3Dshop%2Bvac%26page%3D1&facetInfo=accessory)
*24″ x 24″ x 1/2″ ply (x2)
*22″ x 22″ x 1/2″ ply (x1)
*3″ x 1″ x 24″ Ply Strips (x2)
*3″ x 1 ” x 22″ Ply strips (x2)
*Weather Stripping (http://www.lowes.com/pd_96244-1410-R534_0__?productId=3047980&Ntt=foam+weatherstripping&pl=1¤tURL=%3FNtt%3Dfoam%2Bweatherstripping&facetInfo=)
*Window Screen Frame Material and Corners (http://www.lowes.com/pd_47207-15369-71445_0__?Ntt=window+screens+frame&UserSearch=window+screens+frame&productId=3094527&rpp=32)
Assmeble box from 24″ x 24″ ply and 3″ ply strips. Secure with wood glue and screws.
Center 22″ x 22″ ply on top side of box and secure thoughroughly with wood glue.
When Dry drill desired holes in top of 22″ x 22″ ply all the way through both layers.
Around the outside edges of the 22″ x 22″ ply line with weatherstripping
Using a hole saw cut and fit the shop vac adapter. I secured with epoxy and used silcone sealant to ensure there were no leaks.
Assemble window screen frame. I also secured corner peices with JB weld to ensure the frame would remain sturdy.
Vacuum Forming Plastic:
Supplier : http://www.iplasticsupply.com/
Materials used: PETG / Vivak
Thicknesses: .020″ & .030″
* Formers cut 1/4″ short in all directions.
* Assemble formers and fill voids with block foam. Be sure to allow extra area for trimming final canopy.
* Sand to shape
* Cover entire plug in Bondo or similar body filler
* Rough sand to appropriate shape and add additional filler if needed.
* Fine sand plug to at least 320 grit
* Apply multiple coats of auto primer, sanding in between.
* When satisfied with the smoothness of the plug, add a few additional coats of primer and wet sand to at least 400 grit.
Before each pull inspect the plug to ensure it is free of dust or fingerprints as these can transfer to your canopy.
Intelligent punching technology
Our punching machine technology has two options, depending on your products and requirements: coil punching and sheet punching. The different punching techniques are monitored by either sensor or vision technology. In mutual consultation, we always choose the punching technology which will achieve the highest degree of efficiency in your production process.
Coil punching is the best solution when higher productivity is important. Side cutters in the WEMO machine increase flexibility, justify the production of smaller batches, obviating the need for coil changes and also increasing the availability of your machine. Coil punching guarantees higher productivity, flexibility and low costs. Standard or special tools are installed in the stationary or NC driven presses, either stationary or as a rotatable index multitool. In order to achieve maximum flexibility, we offer the option of using coil nesting per batch of one.
Sheet punching is applied when flexibility plays an important part in the production process. Punching starts with the cut sheet and is carried out with the aid of standard thick turret tooling or special tools. The option of processing different sheet sizes alternately offers more flexibility than punching with coil material. Moreover, curvature in the coil has no influence on the punching tolerances.