Maintenance


Spindles and Routers

Your spindles seem much smaller than larger CNC Routers’ 2.5Kv spindles, how can they do the job as well?

The spindle is proportional to the size of the CNC.  A STEPCRAFT CNC with a 800W spindle will be able to do the same jobs as a large 4×8 foot machine with a 2.5Kv spindle, however, it will not be able to run as aggressively.  So If you can run 60 mm/sec on a large industrial machine with a more powerful spindle, you can do the same job on a STEPCRAFT with an 800W spindle but you might only be able to run at 30 mm/sec.   You will also have to take less material off per pass on the smaller machine than you can on the larger machine.

You also need to keep in mind that a good quality 2.5Kv water-cooled spindle can cost more than entire STEPCRAFT CNC system.  It is really apples and oranges. If you are in the market for a machine for industrial or high production use, then you should be looking at a larger CNC with a more powerful spindle.  However, if you are looking for a precision CNC that can do just about anything, but you would need to run less aggressively, then the STEPCRAFT would be more than enough machine.

No.  We do not offer an attachment bracket for full size routers. Additionally, the weight of the router would be too heavy for our Z Axis motor to lift.  We do have the ability to use trim routers like the Dewalt DW611 or other brands.  These routers will provide more than enough power for any project that you would do with a STEPCRAFT CNC.

There is really not much comparison between the two. Both tools are similar only in that fact they both hold a router bit and can rotate it to cut material at high speeds. A router is a 110V consumer grade tool that is rated for intermittent use while a spindle is an industrial motor that has been manufactured to run all day long, day in and day out for exactly the purpose you want to purchase it for – CNC cutting. Spindles are more powerful (note that hp ratings between routers and spindles are not comparable) and will maintain their full torque down to much lower RPMs than a router. Spindles have precision bearings, which means less run-out and thus smoother and more accurate cutting. The bearings on a spindle also stand up to continuous use better than those of a router. Bearings in a heavily used router will need to be replaced every three-four months, while a similarly used spindle should be good for a few years between bearing replacements. A spindle is also much quieter in operation than a router.

That been said, if you don’t need a heavy cut and noise is not an issue, then a router is a safe choice. In production situations, we highly recommend a spindle. In addition, the full performance capabilities of our machines are fully realized with a spindle because a router will bog down in heavy cutting at higher cutting speeds.

In making a decision, the real dividing line between the two is on how you make your money. If your paycheck comes from someplace outside your shop, then buy whichever you feel you can afford. If your paycheck is generated inside your shop, and your living and reputation is on the line, you need the security and substantially higher cut quality that comes from a spindle.

What is the difference between the Kress, HF-500, Dremel and Dewalt spindles?

We made a video to fully answer this question.

NOTE: The new HF500 spindles NO LONGER come with an air pump as we use sealed bearings and the pump is no longer required. 

The HF500 now comes with a new sealed bearing system which no longer requires the need for the air pump. The following note should have been included with your package.

 

My Q-Series will turn on while pressing the green button, but will not stay energized.

Your E-Stop could be active. Check to make sure the E-Stop in the front face of your machine is not engaged. Also, the US 110 volt edition of Q-Series machine has an additional spindle safety circuit to check – Make sure your 110 volt plug from the back of the machine is connected to a live power source, or, your spindle safety override switch (located on the top of the machine) is engaged.

   

 

If you have your feeds and speeds correct, then the HF-500 should run for a very long time without overheating.  There is an internal air cooling system build into the unit that will keep it running at optimal temperatures. But If you over stress the spindle, you can cause it to run hotter.  The key is to ensure that you are not moving the bit through the material too fast and that you are not forcing the bit/spindle to remove too much material per pass. If the spindle is too hot to touch, then you are doing something wrong with your feed rate or depth per pass. You should always be able to touch the spindle and it should feel warm.  If you can’t keep your hand on it for more than 15 seconds, then you need to look at your setup to ensure that you do not cause damage to the spindle.

 

Does the Laser DL445 use the same port on the STEPCRAFT as the 3D Printer and HF500 spindle?

Yes, they both use the same serial port on the back of the machine.  You would need to disconnect the cable and reconnect the attachment that you wish to use.  STEPCRAFT also offers a Switchbox which allows you to connect everything and simply turn the dial to select the attachment you wish to use.  This is very handy if you are constantly changing attachments.

 

No, we do not have one at this time.  However there are many universal ones on the internet as well as DIY models that you can make yourself.

 

No, you do not need to use different spindles.  The main factor will be how fast the feed rate will be that you run and how much material you remove per pass.

If you with to run a light duty spindle like a Dremel 4000, you can run wood, plastics and metals just as well as if you were using a Kress 800W spindle. The only difference is that you will not be able to remove as much material and your feed rate will be slower the harder the material is.

Keep in mind that dedicated CNC spindles will have better quality bearings which will offer less runout and therefore a longer life span and higher accuracy.  Using the Dremel example, this device is not meant for hours and hours of prolonged use, nor is it made to have lots of pressure side loading the main shaft.  You will find that if you are not careful on the feed rate and pass depth that you will quickly wear out the bearings.

A router like the Dewalt DW611 will also cut all types of material, but as with the Dremel, the bearings are not as good as with a dedicated spindle so you can expect more runout with a router.  The STEPCRAFT HF500 is a purpose built spindle that was designed to work with all types of materials and has an excellent bearing system that provides very little runout and a much higher accuracy.

The bottom line is that you can pretty much cut whatever you like with just about any spindle.  You just need to be cautious on feed rates and pass depth.

Can I connect my HF500 spindle and 3D printer to the STEPCRAFT at the same time?

Yes you can with the use of the of the STEPCRAFT System Attachment Switch Box.  To use the Switch Box, you simply plug a serial cable from the Switch Box to the serial port on the CNC and then you plug the 3D Printer and the HF500 Spindle into the respective ports on the back of the box.  Then you can just rotate the dial to select the attachment that you would like to use and mount that attachment into the tool holder on the STEPCRAFT.

Are all of the machines capable of using the spindle, laser and 4th axis?

Yes, you can use all of these attachments on each of the machines.  However the small size of the STEPCRAFT-1/210 might make it tough to use the 4th axis with longer work pieces. Additionally, the 210 has a limited 3″ Z height, which does not leave a lot of vertical travel and will limit the diameter of material that you can use on the machine.   Additionally you really need a T-slot when using the 4th Axis so you can adjust the tail stock for the length of the work material and the 210 is the only machine that does not have a T-Slot option.