End cap for a tube or pipe, made to measure

Measure the end of your tube with a calliper and choose a plug that pushes into it or a cap that slides over it. We draw the fit from your figure with the clearance you pick, so it goes on by hand, and the cap prints top down with no supports.

What you need before you start

What it will take

Which kind of cap: 2 to choose from
Inside diameter of the tube (0 if not measured): 0–110 mm
Outside diameter of the tube (0 if not measured): 0–115 mm
How far it goes onto or into the tube: 5–40 mm
Nozzle size: 5 to choose from
Filament: 4 to choose from

As it comes

Fit diameter as drawn (plug outside, or cap bore)19.70 mm

Clearance left if the print comes out tight0.10 mm

Outside diameter of the cap26.0 mm

Height, top included14.4 mm

Build plate: 26 mm as it comes, never more than 256 mm.

What you need to hand

A calliper for the end of the tube: the inside diameter for a plug, the outside diameter for a cap (or both, for a plug with a flush head).
How far the plug should go in, or the cap go on.
Your nozzle size and the filament you will print it in.

The part, drawn to your numbers

From the side, as it prints — top down on the plate

Drawn from the numbers in the form below, off the same geometry the file is cut from. It is not a photograph, and there is no photograph — every part that leaves here is a different size.

Plug or cap

A plug pushes into the open end and leaves the outside of the tube as it was; a cap slides over the outside and hides the cut edge.

Which kind of cap

Inside: a plug that pushes into the end of the tube, with a head that sits on its rim. Outside: a cap that slides over the end of the tube.

Your tube

Measure with a calliper, near the end, in two directions at right angles. A plug needs the inside diameter; a cap needs the outside one. Leave the one you do not need at 0 — or give both, and a plug gets a head flush with the tube.

Inside diameter of the tube (0 if not measured)

Measure across the inside of the tube's mouth with the jaws of a calliper, in two directions at right angles, and give the smaller figure. An inside plug is sized from it. Leave it at 0 for an outside cap if you have not measured it.

Outside diameter of the tube (0 if not measured)

Measure across the outside of the tube near its end with a calliper, in two directions at right angles, and give the larger figure. An outside cap is sized from it; on an inside plug it makes the head flush with the tube. Leave it at 0 if you have not measured it.

The cap

How far it reaches onto or into the tube. How snug the fit is drawn and how thick the top is are under Finer adjustments.

How far it goes onto or into the tube

The length of tube the cap covers (outside) or the length of the plug inside the tube (inside).

The printer it will come off

Set these to the nozzle you will print with and the filament you will use; what is filled in is only our usual setting. The nozzle decides whether the walls and the top come out the thickness we drew. The filament does not change the model.

Nozzle size

The nozzle you will print with. It does not change the model — it decides whether the walls and the top come out the thickness we drew.

Filament

Only a note on where each filament suits. It does not change the model.

Finer adjustments

Fit clearance

How much looser than the tube we draw the fit, across the diameter. The smallest setting gives the snuggest fit we will send out; more goes on more easily and holds less.

Thickness of the top

The flat top of the cap. Thicker is stiffer and takes longer to print.

More for around the home

Leg cap
A cap for the foot of a chair or table leg, round or rectangular, cut to the size of your leg.
What you need A calliper for the bottom of your chair or table leg.
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Corner cap
A cap that slides over the corner of a table top and rounds it off, cut to the thickness of your top.
What you need A calliper for the thickness of your table top.
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Levelling wedge or shim
A wedge or a flat shim for under a foot, drawn from the two heights you measure.
What you need The gap under the foot at both ends, with a calliper's depth rod.
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