Charles Field Track Panel Jig: Difference between revisions
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File:2020-11-28 | File:2020-11-28 12.10.50.jpg|Step 1: Place ties on the jig with straight rails on top. Start track screws to hold things in place. | ||
File:2020-11-28 12.16.06.jpg|Step 2: Clamp the third tie from each end in place. Use two screws to fasten a rail in the middle of the tie plate. Start at one of the clamped ties. Tighten the screws on each tie, making sure the tie is touching the tie stop on the jig. | File:2020-11-28 12.16.06.jpg|Step 2: Clamp the third tie from each end in place. Use two screws to fasten a rail in the middle of the tie plate. Start at one of the clamped ties. Tighten the screws on each tie, making sure the tie is touching the tie stop on the jig. | ||
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Revision as of 22:47, 1 December 2020
In March, 2020, Charles Field posted on Facebook about a Track Panel Jig that he built. This was the second one of these jigs he constructed. It is light weight and disassembles into two parts for easy storage. It will work for constructing both straight and curved track panels of 10 foot length.
This article presents Charles' original drawings and photos, along with a version modified for Texas Standard Tie Spacing.
The Original
These photos were provided by Charles Field and come from his original Facebook posting. Used with permission.
This design specifies 4 inch spacing from tie to tie.
Support Joint members in place prior to fill welding.
The Support Joints have been fill-welded to the support beams.
Retention Pin holds the two sections of the the track jig together.
Tie stops welded to support beams.
Charles added a small support brace for the tie retention bar.
Completed track panel jig.
Track jig with several completed track panels.
A key feature of the track jig is that it can be easily disassembled and stored.
Texas Tie Spacing
This design is modified to use the Texas Standard Tie Spacing of 5.5 inches from tie to tie.
- Track Panel Jig Bill of Materials (PDF)
- 200 Assembly Drawing (PDF)
- 100 Main Support Beam (PDF)
- 110 Main Support Joint (PDF)
- 120 Tie Stop (PDF)
- 130 Tie Retainer (PDF)
- 130 Sagitta Rule for 10 Foot Rail (PDF)
Use
Daris A Nevil wrote:
- The Charles Field Track Panel Jig can be used to construct straight as well as curved track panels (see Sagitta Rule). I use ties produced by Enterprise Plastics Inc, as it makes panel assembly super easy.
- Here is how I build curved panels with 50 foot radius.
Step 1: Ties are placed in the jig with pre-curved aluminum rail on top.
Step 2: Track screws are started but not tightened in this step.
Step 3: The gap in the rail is staggered to prevent sagging over time. Two screws are used to attached the end of the rail in the middle of the tie plate on the third tie from the end. Do this on both ends. A welding clamp is used to hold these two ties in place.
Step 4: Start at one of the clamped ties and tighten all screws on that tie. The plastic tie plates will help align the tie perpendicular to the curved rail. Make sure one end of the tie touches the tie stop on the jig.
- The procedure for building straight panels is even simpler.
Step 1: Place ties on the jig with straight rails on top. Start track screws to hold things in place.
Step 2: Clamp the third tie from each end in place. Use two screws to fasten a rail in the middle of the tie plate. Start at one of the clamped ties. Tighten the screws on each tie, making sure the tie is touching the tie stop on the jig.
