Updated September 30, 2019. Using 3/32" (.09375" or 2.381 mm) Harris 4043 aluminum wire to make the coil. A new drive, a new wire guide scheme, and a new wire transport are show here. The 6" conduit used for this test is a brand X scrap piece rescued from a junk pile.
Why Cantex ?
Why Cantex ?
Their material is UV-stabilized for weathering strength in the changing climate of Northern Ohio. It also machines and drills consistently. The dielectric constant is the same from piece to piece, and the Cantex compound resists chalking. I've filled a dumpster with look-alike parts that failed to survive the coiling process at some point.
See http://www.cantexinc.com for specifications.
The information presented here is accurate and true to the best of the author's knowledge. All recommendations and statements are made without guarantee on the part of the author. The author disclaims any liability in connection with the use of this information.
Tuesday, June 5, 2018
Monday, June 4, 2018
Both ends of the 10' tube section are marked every 60реж. These indicate the centers for Dynaflex 230 adhesive strips (6) which will secure the wire windings on the tube. It's available at The Home Depot. Although sold as a window sealant, the all-weather characteristics of the '230 make it ideal for this application. See the manufacturer's web site for usages and safety data; http://www.dap.com/dap-products-ph/dynaflex-230-premium-indooroutdoor-sealant/
Use 3/4 to 1 inch spacing for the sealant strip width. Blue painter's tape is used to set the space. Use your fingers cover the gap with a very thin coating of sealant. Disposable latex gloves come in handy for this job.
Allow the goop to set up for at least 4 hours before removing the tape. These strips will secure the wire in position by forming small landing pads that stay flexible for a long time. And it's inexpensive.
Use 3/4 to 1 inch spacing for the sealant strip width. Blue painter's tape is used to set the space. Use your fingers cover the gap with a very thin coating of sealant. Disposable latex gloves come in handy for this job.
Allow the goop to set up for at least 4 hours before removing the tape. These strips will secure the wire in position by forming small landing pads that stay flexible for a long time. And it's inexpensive.
The blue painter's tape shown here defines the channel for the Dab adhesive. Chalk lines are helpful for siting the tape position but are not necessary. The glue is applied by hand for a thin coating along the entire length of the tube. Wait at least three hours before removing the tape. The wire will find a permanent seat on the sealant immediately as winding proceeds.
The operator's mobile station is in position. The on/off control line is behind the fixture so as not to be run over by the transport wheels. There is no brake on the motor, so rotation will continue for 2 to
3 seconds after the power is turned off. The control switch can be seen just to the left of the wire spool.
3 seconds after the power is turned off. The control switch can be seen just to the left of the wire spool.
Subscribe to:
Posts (Atom)