Mafell
Sturmer
Zipper
Holzmann
Scheppach Direct
Arunda 50N Midi Dovetail System
£2,306.40 inc. Vat
Class “N” jigs with tilting fences (+50°/90°/-50°).
Models : 50N, 80N and 120N (Jigs and timber width table)
“N” jigs are fitted with sliding fences that can be tilted up to 50° in either direction.
They can be used for all kinds of assemblies, whether perpendicular or angled.
They are especially helpful in building roof systems which require milling dovetails on angle cuts, such as the joints on a chamfered ridge beam.
The sliding fences can be adjusted to the exact roof pitch required.
Arunda titling jigs have a double graduation in millimeters (mm) and inches (“/in/inch).
Purpose of the system
Arunda is a system for manually making dovetailed wood-to-wood joints to assemble timber frame structures. All you need is a pair of Arunda jigs (one for the tenon and the other for the mortise), a powerful router fitted with the special Arunda bit, and some accessories.
Process
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- Using a simple rule, you determine the height of the assembly (for instance: 150 mm / 6″).
- You set the jig fences to the figure corresponding to that height.
- With the lever clamps, you fix the male jig on the end of the timber to be tenoned and the female jig on the beam to be mortised.
- Using the router coupled with the special Arunda bit, you mill the male and female dovetails. Remove the jigs and your joint is ready to assemble!
Use Arunda to assemble your dovetail framing with the Arunda system, dovetail framing assemblies become decorative! The internationally patented Arunda jig was developed in Switzerland by professionals working in the field. It was designed for simple, efficient use.
Please see https://www.arunda.ch/ for more info
Brand
ARUNDA
These solid steel jigs are available in different models and sizes to suit builders' needs: the #50, #80, #120 and #160. The choice of a model is determined by the dimension of the timber most commonly used. The width of the beam is the only deciding factor to select the jig. Each jig model makes it possible to work on a range of timber widths. The bigger the jig, the wider the assembly and the greater the tolerance! It is therefore useful to choose the jig that best fits one's needs in order to ensure the greatest structural integrity of the building. A small beam requires a smaller joint, whereas a large beam calls for a bigger joint for maximum strength. Generally, only one jig model is necessary.
The jigs can be adjusted for various heights of tenon/mortise.
Arunda® System : The Advantages
SPEED
Fast implementation of the timber frame assemblies : 8 to 18 mortise/tenon joints per hour.
EASE OF USE
The vertical mortise and tenon dovetail assembly is very fast and easy. No need to spread the beams to insert tenons, as with straight tenons.
PRECISION
The conical shape of the dovetail joint is self-tightening: The male and female parts fit perfectly and hold together. The tightening strength of the assembly can be modified and adapted to the nature of the wood (dry gluelam or solid wood).
FLEXIBILITY
You can produce perpendicular or angled joints on floor joists or rafters.
VERSATILITY
Usable on a wide range of timber widths: from 45 to 300 mm / 1¾" to 12" for the tenon. No limitation for beams to be mortised.
TIME-SAVING
Identical router bit setting to cut both mortise and tenon, for all beams in the same series.
QUALITY
An authentically timber framed roof assembly.
STRENGTH
Workloads are very high: up to 2100 kg / 4620 lbs per joint.
MOBILITY
Jigs are just as easy to use in the workshop as on the job site.
ECONOMY
A low-cost replacement for metal connectors, which are expensive and take longer to implement. With Arunda, you make a one long term investment. The system is available anytime to produce joints of several sizes.
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