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Guide · Turning and carving projects

Wood Turning Projects: Coasters on a Backing Block and a Set of Drawer Knobs

Two small projects that teach the next skills after a first spindle. The coasters are faceplate work: each blank is glued to a backing block screwed to the faceplate, so no screw ever touches the coaster, and the finished piece is parted off at the glue line. The knobs are spindle work in multiples: four identical knobs laid out along one blank, sized with calipers and separated with a saw. Each has a measured drawing, cut list and steps. Both are BenchRoot designs, drawn and checked, not turned for this page.

Published
Reading time
5 min
Level
Intermediate
Plate —A coaster 4 in across and 1/2 in thick, turned from a 3/4 in blank glued to a backing block on the faceplate. The parting kerf, about 1/8 in, sits just behind the coaster and 1/8 in stays on the block: 1/2 + 1/8 + 1/8 = 3/4 in. The faceplate screws go into the block only.

The two projects at a glance

The two builds at a glance
BuildDifficultyTimeStockHolding
Four coasters, 4 × 1/2 inIntermediateA day, plus glue and finish dryingFour 4-1/2 × 4-1/2 × 3/4 in hardwood blanks; scrap for four backing blocksFaceplate and glued backing block
Four drawer knobsBeginner to intermediateAn afternoon, plus finishOne 1-1/2 × 1-1/2 × 10 in hardwood blankBetween centres

Tools: a bowl gouge or scraper for the coasters, a spindle gouge and parting tool for the knobs, calipers, a handsaw, wood glue and clamps, abrasives to 220 grit.

Faceplate and spindle work differ in grain direction and in how the work is held, as woodturning basics explains. Turn a first plain spindle — how to use a lathe — before either.

Build 1: coasters on a backing block

Cut list: one coaster
PartQtySize (in)Material
Coaster blank14-1/2 × 4-1/2 × 3/4, corners sawn offHardwood, flat, no cracks
Backing block13 dia × 3/4, faces flat and parallelScrap hardwood or plywood
ScrewsAs the faceplate takesNon-tapered heads; no more than 1/2 in into the blockSteel

Make four. The block must be wide enough for your faceplate's screw holes; 3 in is shown. A screw that goes 1/2 in into a 3/4 in block stops 1/4 in short of the glue line.

Turning a coaster

  1. Prepare the blank

    Cut the blank 4-1/2 in square and saw off the corners so it is as close to round as you can make it, as Grizzly does before mounting. Mark its centre on the back face.

  2. Glue on the backing block

    Drill a 1/4 in hole through the centre of the block, sight the blank's centre mark through it, and glue and clamp the block to the back of the blank, as Grizzly describes. Let the glue cure for the time its maker gives; see how to use wood glue.

  3. Mount

    Screw the faceplate to the block only, with non-tapered-head screws — Grizzly warns that tapered heads can split the faceplate or snap off. Thread the faceplate fully onto the spindle and lock it as your lathe's manual sets out; on the G0844, with two set screws.

  4. Set the speed and true it

    The squared-off blank sweeps about 6-3/8 in, so rough at the speed your chart gives for that size — 380 rpm on Grizzly's G0844 chart. Turn the edge round to 4 in, then the face flat, cutting from the rim towards the centre.

  5. Detail, sand and finish

    Ease the top edge, and add a shallow groove if you like. Lathe off and rest moved away, sand to 220 grit at a slow speed with the paper folded, and apply a finish whose maker says it resists water.

  6. Part off

    Mark 1/2 in back from the face. Part in just behind the mark towards the centre, but not all the way through, as WEN does; stop the lathe and finish the cut with a handsaw.

  7. Finish the back

    Sand the back flat on a sheet of abrasive on a flat surface, and add a cork or felt pad if you want one. Re-face or replace the backing block before the next coaster.

Build 2: four drawer knobs

Fig. 1 —Four knobs from one 1-1/2 in square blank 10 in long: each knob is a 1-1/4 in head 5/8 in long, a neck tapering from 3/4 in to 1/2 in over 1/2 in, and a 3/8 in tenon 1/2 in long — 1-5/8 in in all — with 1/4 in between knobs and 1-3/8 in of waste at each end: 1-3/8 + 4 × 1-5/8 + 3 × 1/4 + 1-3/8 = 10 in.
Cut list: drawer knobs
PartQtySize (in)Material
Blank11-1/2 × 1-1/2 × 10Close-grained hardwood, straight grain
Knob (turned)4Head 1-1/4 dia × 5/8; neck 3/4 to 1/2 dia × 1/2; tenon 3/8 dia × 1/2From the blank

Each knob glues into a 3/8 in hole 1/2 in deep. In a 3/4 in drawer front that leaves 1/4 in behind the hole; thinner fronts need a shorter tenon.

Turning the knobs

  1. Mount and rough

    Mount the blank between centres and rough it to about 1-3/8 in at the speed your chart gives for its 2-1/8 in diagonal — 760 rpm on Grizzly's G0844 chart.

  2. Lay out

    Lathe stopped: mark 1-3/8 in of waste at each end, then four knobs of 1-5/8 in with 1/4 in between them, and within each knob the 5/8 in head, the 1/2 in neck and the 1/2 in tenon.

  3. Make a test hole

    Drill a 3/8 in hole in scrap with the bit you will use in the drawers, so each tenon can be sized to it rather than to a nominal figure.

  4. Size and shape

    Size each head to 1-1/4 in and each tenon with a parting tool and calipers, checking against the test hole; then taper each neck from 3/4 in to 1/2 in and round each head with a spindle gouge, working downhill.

  5. Sand and finish

    Lathe off and rest moved away, sand to 220 grit at a slow speed and apply finish with the lathe stopped.

  6. Separate

    Part each gap down to about 1/4 in, stop the lathe and saw the knobs apart, then sand each dome by hand. Easy Wood Tools warns never to part right through between centres.

  7. Fit

    Drill 3/8 in holes 1/2 in deep in the drawer fronts, and glue the tenons in. Drilling to depth is covered in the drill guide.

Safety— Faceplate and spindle safety

Check the glue has cured and the faceplate is locked before switching on, start at the lowest speed standing out of the work's path, keep the tool on the rest, and part short and saw with the lathe stopped. Your lathe's own rules come first; see the lathe guide and woodworking safety rules.

Before turning either project

  • Backing block glued, cured and flat; screws into the block only
  • Faceplate threaded fully on and locked
  • Speed read from your chart for the blank's sweep
  • Test hole drilled for sizing the tenons
  • Rest close and locked; work turned by hand
  • A saw ready for the final separation

Sources

Both are BenchRoot designs; every dimension is on the drawings and in the cut lists, and the arithmetic — layer thicknesses, knob spacing, tenon depth — was checked. Mounting follows Grizzly's backing-block method and screw rule; speeds are read from Grizzly's G0844 chart as an example. The designs were not turned for this page. No downloadable plan is offered.

  1. 1.

    Model G0844 14" x 20" Benchtop Wood Lathe, Owner's Manual. Grizzly Industrial, 2019.

    Used for: Faceplate turning; mounting work on a backing block glued and clamped to it, its faces flat and parallel, with a 1/4 in hole through its centre to sight the work's centre mark; only screws with non-tapered heads, because tapered heads can split the faceplate or snap off; the faceplate threaded fully on and locked with its set screws; corners cut off the blank to bring it close to round; the speed chart — 6–8 in: 380 rpm roughing; 2–4 in: 760 rpm — and low speeds for large or out-of-round work.

  2. 2.

    Model 34034 14" x 20" Variable Speed Wood Lathe, Instruction Manual. WEN Products (store-hosted copy), 2019.

    Used for: Faceplate mounting for flat work; the separation begun with a parting tool but not cut all the way through; sanding with the paper folded, never wrapped; finish applied with the lathe off.

  3. 3.

    Easy Parting Tool — product information and safety. Easy Wood Tools.

    Used for: Never parting completely through between centres: cutting to about 1/4 in and finishing with a handsaw.

About this guide

Written by BenchRoot Editorial. How BenchRoot sources, checks and corrects its pages is set out in the Editorial Policy. If something here is wrong or unclear, the contact page explains how to tell us.

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