Mini rotary ideal for K40 small laser machine
Other products by Lightobject
Item #: LSR-K40ROT
Reg. Price: $225.00
Our Price: $165.00
The product is currently out of stock, current quantity is 0


Mini Two Axis Rotary


This is a custom designed mini rotary. It is perfect upgrade item for K/D40 laser machine or similar application. The rotary employs two axis design and the rolling bars are covered with silicon tubing. It is soft enough not to cause any scratches on delicate objects such as bottles or glass.



  • Motor model and current: 42HS03, 2A
  • Roller length: 200mm (8")
  • Roller diameter: 25mm (1")
  • Adjustable distance: 20mm
  • Dim (LxW): 300mm x 150mm (11-3/4" x 5-7/8")


Suggested motor driver:  Mini 2 Phase 2A 1-axis Stepping Motor Driver

Motor connection: RED and Yellow wires go to A+ and A- to the motor driver, Brown and Orange wire go to B+ and B- to the motor driver.

Note: Color of the wires may vary.  Please double check if the pair of wires are  right using a multimeter.

No documentation or manual inclued. DIY


*Note: The K40 stock main board will not be able to drive this rotary. Don't use it in direct replacement for Y or it will damage the main board. Youll need an external motor driver instead.


Average Rating:
(based on 3 reviews)

Showing 3 Reviews:

by Damian
on 9/26/2016
Excellent addition
This is an excellent product. Especially now that the rotary option is enabled/programmed into the latest DSP firmware upgrade. I purchased this rotary apparatus earlier this year and it has sat unused as I worked on other projects and didn't have time to do a workaround on the Y-axis to make it work. I finally got time to mess with it and behold!...there was a firmware upgrade this month that enabled the U-axis for rotary engraving. I had it spinning in less than 15 minutes. This opens up a whole other world of potential for my K40-esque machine. I made another mod last year which really negated one of the complaints of this apparatus: I added the power Z table but I added it BELOW the K40 bottom plate by cutting a hole in the bottom of the K40. I have several more inches of room for larger objects. I have no problem engraving wine glasses and Yeti thermal cups. Thanks Marco for putting out another quality product at a reasonable price.
by Don
on 12/6/2015
Build quality is OK but limited usefullness
The build quality is good but it is not much use on a small laser, with the table all the way down, you can't fit much on this rotary, even with the table removed, you are limited to only a 2 inch diamiter item. I tried spreading the rollers so a larger item can fit but the rollers only spread a small distance before the mounts hit the motor drive sprocket. It has no instructions or driver with it so there is an added expense there and you need to hack into the Y axis to use it as the LO-X7 and other upgrades here don't support a rotary directly. You will need 2" plus the height of your object being engraved to be below the focal point of your laser, in my case I have a short focus lense and I can't even engrave a standard k The object needs to be fairly even in diameter, this rotary does not accomodate tapered objects. And you need a Driver and you will have to seach through the Forum to get the setup and wiring. For a large laser it would probably be OK, for me it is not so much
by Olegario
on 7/22/2015
Good Quality but item comes without documentation.
The build quality is very good but the item doesn't come with a wiring diagram or pinout.
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