INSTApart manufactures parts with an automated 3 axis milling process. Therefore we can only manufacture parts which are millable from a single side. This restriction enables us to fully utilize our automated manufacturing process and reduce overall cost to a minimum.

We are currently working on an upgrade, so that we can also mill parts from two sides. Expect an upgrade for double sided parts by the end of 2023.

INSTApart machines and finishes your outline automatically. Sharp inner edges will be automatically radiused. Our only pre view shows automatically radiused corners.

We recommend a minimum of 3.25 mm inner radius for lowest cost.

Minimum inner radius: 0.75 mm for parts up to 10 mm thickness, 1.25 mm for parts up to 15 mm thickness

INSTApart can only machine pockets with an inner radius. Sharp inside radii will be automatically radiused as shown in our 3D pre view.

We recommend a minimum of 3.25 mm inner radius for lowest cost.

Minimum inner radius: 0.75 mm for parts up to 10 mm thickness, 1.25 mm for parts up to 15 mm thickness

INSTApart is fully capable of milling chamfers and fillets. However keep in mind that we usually approximate chamfers and fillets with a small step over. Thus increasing production time and part cost.

We recommend omitting chamfers and fillets if they are not necessary as we automatically deburr parts using an electrochemical etching process.

We recommend a minimum wall thickness of 1 mm. Wall thicknesses below 1mm can lead to instability problems during manufacturing.

We recommend keeping all pockets bigger than 3.5 mm. However usually our software will accept a 1.5 mm minimum feature size up to 10 mm of part thickness.

INSTApart is fully capable of milling holes. For optimum cost we recommend keeping the minimum hole diameter at part thickness / 3

Min. hole diameter: 0-5 mm part thickness: 1.25mm, up to 10 mm part thickness: 2.25 mm, up to 15 mm part thickness: 3.25 mm.

We are currently working on additionally milling threads into your part.

We will be able to mill M3 to M8 threads up to the full depth. Expect an update to thread milling by mid 2023

Currently INSTApart does not offer separate surface finishes. However our electroplating process leaves a deburred, matt grey aluminium part which does not require any further treatment.

All plastic and carbon parts are cleaned and left as manufactured and may still have slight burrs.

INSTApart automatically deburrs Aluminium parts via an electrochemical etching process. This process usually deburrs the complete part. However it is possible that there a some minor burrs left.

All carbon and plastic parts are left as manufactures which may leave sharp edges or slight burrs.