How a DTR is made

 

       
 
This will give you an understanding on what's involved in making a DTR. It is important to know that all restoring devices are not equal. Durability, function and performance is what I wanted when I created the DTR. This device is designed to last years and years.
Unfortunately most devices available are formed in a mold (such as silicone or plastic devices) DTRs are machined on a lathe. When you get the DTR you're getting a device that is well crafted and has been perfected through years of testing.
This will be a quick rundown on some of the steps that it takes to make the two main parts of the device this is the Bell and the push plate. Unfortunately when machining nylon on a lathe it creates ribbons of nylon that constantly need to be removed, this happens every few seconds while I operate a lathe.

It's a time-consuming process but worth it.
I offer to make these devices for anyone that cannot at a price that is a little more than you would pay for a plastic or silicone device.
 

 

 

 

First a 1 1/2 inch ( 38.1mm ) rod blank is first cut down to 1.353 inches ( 34.5 mm ).
    Then the rod is parted .787 inches ( 20 mm )from the face (bottom of Bell) then the center of the bell is made.
    The top section of the bell is parted and then formed.
    Another small notch is made in the center of the bell this keeps the gripper from sliding up. The bell is then formed. Measurements are constantly being made every few seconds.
    Ribbons of nylon are constantly being removed after every step this is why DTRs cannot be made on an computer-controlled lathe. Since the machine would have to be stopped or nylon ribbons to be removed. A quarter inch hole is drilled through the center of the bell.
    After the bell has been drilled out the bottom of the bell is hollowed. I even made a special gauge to be sure the bell is within specified tolerances to be sure it will work properly. Every edge is rounded and more measurements are taken to be sure everything is correct.
    Two marks on made to give me a guide on where the screw holes will be made. After the finished bell is removed from the rod stock it is then drilled out on a drill press.
    The bell is threaded to accept the screws used to hold the elastics and stainless steel screw.
       
    The push plate is made with the same rod stock. It is first cut down to 30 mm.
    After being roughly shaped a hole is drilled through the center.
    The push plate bottom is formed. A tap is used to thread the center of the push plate.
    The push plate is shaped again and measured. All edges are rounded to give maximum comfort. The push plate is then removed from the rod stock and another tool inserted into the lathe that holds the push plate upside down.
    This tool was made so that I can finish the top side of the push plate.
       
    Grippers are made on another tool that I made for the lathe. This tool is made out of nylon and holds the baby bottle nipples used to make grippers. This allows me to use a very sharp razor to cut the extra material that is not needed on the nipple. The lathe is spinning at 8500 RPM's when I do this.
    Making grippers this way allows me a perfect cut unfortunately one slip in the gripper is destroyed.
    Push rods are made from quarter inch nylon rod stock cut to specific lengths and drilled. Then one end is threaded so that it can be screwed into the push plate.
    The push rod is sanded smooth. The DTR is assembled and nylon and stainless steel screws added. This will give you a basic idea of what's involved in making a DTR. I have received many e-mails from engineers that are impressed with the construction of these devices. Some of these can be found on my testimonies page. I take great care in making each one because I know it's going to be used on a man's most prized possession!