• Render of the seat rail drill guide STL
  • Render of the drill guide capping the end of a seat rail, with the bolt hole and shaft hole drill directions
  • Underside render of the drill guide showing the slot that slips over a 1 inch rail
1 3

Homestead Acres

Seat Rail Drill Guide for Tall and Extra Tall Seats - STL File

Seat Rail Drill Guide for Tall and Extra Tall Seats - STL File

$10.00 USD
$10.00 USD
Sale Sold out
Taxes included. Shipping calculated at checkout.
Title

This is a digital download, not a printed part. You get the STL files to 3D print the HA Woodworks Seat Rail Drill Guide yourself, plus the step-by-step instructions (PDF). No printer? Order a printed one from us ($35).

What it's for

The Tall and Extra Tall Seat Rail plans need two holes at each end of each rail: a bolt hole straight down through the edge, centered in the 1" thickness, and a shaft hole straight through the face. The guide caps the end of the rail and puts both holes in the right spot, square, without a drill press. One guide does all four corners.

Imperial and Metric both included. The Imperial guide is sized for 21/64" and 5/16" bits. The Metric guide is sized for 8.5 mm and 8 mm bits. Print the one that matches the bits you have.

What you get

  • Two STL files (Imperial and Metric), watertight and ready to slice, about 63 x 53 x 66 mm
  • Instructions (PDF), inch and metric: marking, drilling order, bit length, and tape flag depths for Tall and Extra Tall

What you'll need

  • Rails cut to size from the Tall and Extra Tall Seat Rail Plans
  • A 5/16" bit (or 8 mm) for the shaft holes
  • A 21/64" extension bit at least 6-1/2" long (or 8.5 mm, at least 165 mm) for the bolt holes. A 6" bit covers Tall only. A 12" covers both.
  • A hand drill and a couple of clamps

Print settings

  • Material: PETG or PLA
  • Orientation: as supplied, round guide post on the bed. Turn supports on: the top plate and the face guide overhang.
  • 0.2 mm layers, 4 walls, 40% infill

License

Personal use only: print it for your own rails. Please don't share, sell or redistribute the files or printed parts.

Getting your download

Your Download button appears on the confirmation page right after checkout, and anytime on your order page in your account. Can't find it? Email chris@hawoodworks.com and I'll send it over.

All sales final

Digital products are final sale, with no refunds. If your download link doesn't work or your file is damaged, email chris@hawoodworks.com within 30 days and I'll send you a working copy.

View full details