Is the BobsCNC Evolution 4 everything you need in a CNC router? Read on for our review of its specs.
The Evolution 4 is a CNC router DIY kit made with a birchwood frame by BobsCNC.
It was released in April 2020 and its somewhat unconventional design is a hallmark of the US-based company, which is run by four old friends (of which one is named Bob, hence BobsCNC).
The company philosophy is to produce “great products” and “great relationships” with its customers (primarily hobbyists, woodworkers, and craft enthusiasts) and employees.
Its latest product, the Evolution 4 is a new and improved edition of the company’s old E4 CNC router, which, after three years, has been retired (though it’s still possible to find refurbished ones on the BobsCNC website for about $800).
Though the new router is a bit pricier than its older counterpart (it sells for about $1,100) it accounts for a host of changes made after taking account of customer feedback.
So, are the changes worth it? Read on as we review this router’s specs.
Solid customer service
BobsCNC has built up a reputation for offering quality customer service. If you’re a pretty handy person already this may not matter much to you, but if you’re just getting into CNC routers having a reliable way to get in touch with the manufacture should you run into any issues is worth considering.
Generous Cutting Area
The Evolution 4 gives you pretty generous 610 x 610 x 85 mm to work with. This opens up the range of what you can do with the machine.
Documentation
This router comes with an in-depth assembly manual to help you put it together (it is a kit, after all).
Upgrades from the old E4
BobsCNC made a host of changes to the old E4 to build the Evolution 4. The company replaced the threaded rod on the Z-axis with an Acme rod (which is secured with a bearing and locking collar to reduce Z-axis wobble) to speed up Z-travel so jobs can be completed more quickly. There’s also no need to lubricate the Z-drive thanks to a Delrin Acme nut.
Further upgrades are adjustable eccentric spacers to keep the bearings tight against the rails, a torsion box gantry to reduce linear and torsional deflection for a faster cutting speed, and an integrated belt-tensioner to simplify belt-tightening.
BobsCNC created router mounts for quieter, speed-variable routers and you have the option of a DeWalt DW611 or a Makita RT0701C. The self-squaring gantry is now standard and wire routing has been improved to protect the wires from damage and electrical interference.
Lastly, there’s a one-piece spoilboard with inserts to make assembly easier, but you also have the option to design your own if you want to save some money.
Where to Buy
Here’s where you can get your own Evolution 4:
