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CR Onsrud

CNC wood cutting

CNC wood cutting

Although lean machine regularly cuts metal, we are also more than capable of cutting wood, plastics, and composites!

 

3/4" MDF being cut on one of our CNC routers for a local kitchen cabinet making shop. 

3/4" MDF being cut on one of our CNC routers for a local kitchen cabinet making shop. 

Stacks of consistent and accurate parts on a pallet ready to ship.  Notice each one has a label with the part number, thickness, and dimensions.

Stacks of consistent and accurate parts on a pallet ready to ship.  Notice each one has a label with the part number, thickness, and dimensions.

New Machine announcment

New Machine announcment

It's been 6 months in the making and we now have our brand new CR Onsrud router!  We decided to purchase a new machine to add more aluminum cutting capacity, have the ability to handle larger sheet sizes (up to 8ft wide), and have increased after-hours cutting capacity.  This one is a behemoth with a  8' x 20' table.  It weighs in around 30,000 lbs and is extremely rigid.  The new machine is installed and fully operational.

Here is the table loaded with four 4'x10' sheets of 3/16" aluminum.

Here is the table loaded with four 4'x10' sheets of 3/16" aluminum.

We also decided to put the machine through it's paces and cut some 1" thick aluminum right off the start.  The tolerance and cut quality is unbelievable!

We also decided to put the machine through it's paces and cut some 1" thick aluminum right off the start.  The tolerance and cut quality is unbelievable!

The Advantages of a CNC router

The Advantages of a CNC router

At Lean Machine we have many different ways to cut metal.  When cutting aluminum one of our favorite ways is with a CNC router.  The router is extremely cost effective to run, it can cut very thick aluminum, and one of the coolest things is that it can depth cut (cut partially down into the sheet) to do engraving and pocketing.  Below is a part that we have designed to take advantage of the router's depth cutting capabilities.

This is the base part of an aluminum assembly that is robotically welded together.  The half-depth slot is a way to index the gussets that will be welded in without using an additional jig or measuring and tack welding each one in.  As a side note, the finished edge quality is excellent on the Onsrud CNC router.

This is the base part of an aluminum assembly that is robotically welded together.  The half-depth slot is a way to index the gussets that will be welded in without using an additional jig or measuring and tack welding each one in.  As a side note, the finished edge quality is excellent on the Onsrud CNC router.

The gusset is a 3/16" thick 5052 aluminum part that is also cut on the CNC Router.  The little tab sticking down seems like it is cut on an odd angle; however, much thought was put into the shape of it.  The Robot Cell Operator can easily slide each gusset into place, but they will not fall out when the entire assembly rotates in the robotic jig.

The gusset is a 3/16" thick 5052 aluminum part that is also cut on the CNC Router.  The little tab sticking down seems like it is cut on an odd angle; however, much thought was put into the shape of it.  The Robot Cell Operator can easily slide each gusset into place, but they will not fall out when the entire assembly rotates in the robotic jig.

With the final assembly welded together, you cannot see depth cut slots anymore and everything was lined up perfectly for the robot to weld.  This design makes for an extremely repeatable part that saves cost for Lean Machine and its customers.

With the final assembly welded together, you cannot see depth cut slots anymore and everything was lined up perfectly for the robot to weld.  This design makes for an extremely repeatable part that saves cost for Lean Machine and its customers.