Lil' Blue - The Desktop CNC Laser

This is my Lil' Blue CNC Laser. I have been wanting to make one ever since I turned my 3018 into a CNC machining tool only. I didn't like how the 3018 was so slow and sloppy when it came to the motion system, especially when you tried to ramp up the speed for laser engraving/cutting. I started this project about a week ago, and seems fairly complete now.

I used pack and go, so you can import this assembly into Solidworks and make it your own! Or, you can print the .stl files, buy the components, and have yourself a sweet little CNC laser!

Here are the parts:

Sainsmart 5.5W laser module https://www.sainsmart.com/products/sainsmart-blue-laser-module-kit?gclid=CjwKCAiAtdGNBhAmEiwAWxGcUhkLL-mUYXXU2th9A76OgnzNY7H_jyjocODAMYFhwnAjgl7DAtMCgRoCetEQAvD_BwE

Aluminum honeycomb core https://www.mcmaster.com/9635K3-9635K311/

40T GT2 8mm pulley https://www.amazon.com/LICTOP-Aluminum-Synchronous-Printer-Accessories/dp/B07K6BRL4K/ref=sr_1_1_sspa?crid=1POQU5RFUHI8Z&keywords=40t+gt2+8mm&qid=1639251509&sprefix=40t+gt2%2Caps%2C201&sr=8-1-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUExN1A2Qk9EQUJPV0c1JmVuY3J5cHRlZElkPUEwNjU2NDIwMThFWVlJRlVLRUtSQyZlbmNyeXB0ZWRBZElkPUEwNjMxMTM2MkNRUUlUTFlENkpMTyZ3aWRnZXROYW1lPXNwX2F0ZiZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU=

20T GT2 5mm pulleys w/ GT2 belt https://www.amazon.com/gp/product/B0776KXY8G/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

200mm GT2 closed belt https://www.amazon.com/uxcell-Timing-Closed-Synchronous-Printer/dp/B07X6NPX99/ref=sr_1_7?crid=GM327FCOP1RA&keywords=200mm+gt2+belt&qid=1639251674&s=industrial&sprefix=200mm+gt2%2Cindustrial%2C199&sr=1-7

3x 300mm (or more) MGN12C (must be C, not H) linear guides https://www.aliexpress.com/item/32906662047.html?spm=a2g0s.9042311.0.0.27424c4dCuADIK

2x 95mm LML9B miniature linear guides (has to be the 9mm guides, not the 12mm) https://www.amazon.com/gp/product/B07WTX3NHY/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&th=1

3x Mechanical limit switches https://www.amazon.com/gp/product/B08736NP44/ref=ppx_yo_dt_b_asin_title_o06_s00?ie=UTF8&psc=1

3x 300mm 2020 t-slot or v-slot extrusion

4x 345mm 2020 t-slot or v-slot extrusion (optional for the base)

MDF board trimmed to size (optional depending on your desired surface/mounting)

90mm T8 2-start lead screw from 3018 z-axis assembly (can use other T8 but must configure it in settings)

T8 nut (to match above, can use anti-backlash variant)

1x 608 bearing

2x 625 bearings Sainsmart 3018 pro control board

Various M3 and M5 length fasteners

M3 and M5 t-nuts

M5 washers (large and small OD)

Wiring & cable management

Print Settings

Printer:

P2020

Rafts:

No

Supports:

No

Resolution:

0.2

Infill:

20%

Filament: Hatchbox PLA

Blue

Notes:

I designed the parts to be printed without supports.

How I Designed This

Solidworks

Category: Machine Tools