Changes

The spindle uses ER25 collets. These eventually wear out, so check before using them. Collets are a durable expendable.  

The spindle uses ER25 collets. These eventually wear out, so check before using them. Collets are a durable expendable.  

Some people buy their own collets. There are a number of suppliers of collets, nuts, and related accessories. [http://www.techniksusa.com/ Techniks] and [http://www.shars.com/ Shars] are both brands that have been recommended by experienced CNC users, although other brands may also be of equivalent price and quality:

Some people buy their own collets, which may be worth it as it helps prevent slips and ruined jobs. There are a number of suppliers of collets, nuts, and related accessories. [http://www.techniksusa.com/ Techniks] and [http://www.shars.com/ Shars] are both brands that have been recommended by experienced CNC users, although other brands may also be of equivalent price and quality:

* [http://www.shars.com/1-4-ultra-precision-5-micron-er25-collet Shars ER25 Collet Ultra Precision 5 Micron]

* [http://www.shars.com/1-4-ultra-precision-5-micron-er25-collet Shars ER25 Collet Ultra Precision 5 Micron]

*Autodesk Fusion 360

*Autodesk Fusion 360

**The ShopBot computer does not have this and may not be fast enough to run it.

**The ShopBot computer does not have this and may not be fast enough to run it.

**You '''MUST''' use the custom post-processor below. Otherwise, you will bypass the safety check to make sure the spindle really is running!

**You '''MUST''' use the custom post-processor below. Otherwise, you will bypass the safety check to make sure the spindle really is running!  

**For local '''Windows''', to install this on your local computer:

***For '''Cloud''' (Probably best since it should work on any computer you use Fusion 360 with)

***Unzip and install this in C:\Users\YourName\AppData\Roaming\Autodesk\Fusion 360 CAM\Posts

**** Open Fusion 360 and choose preferences under the "head" icon in the top left. Choose CAM, then "Enable Cloud Libraries"

***Note that AppData is often a hidden folder!

**** Navigate to Libraries > Assets in the Data Panel (top right, where you normally choose designs)

***Inside Fusion 360, when you select Actions / Post Process, under Configuration Folder, hit Setup and select Use Personal Posts.

**** Double click the Assets > CAMPosts folder to enter it.

**** Use the Upload button to upload the desired post processor from your local machine to the Assets > CAMPosts folder. This will upload the post to the cloud and allow you to access it anywhere you may login to your Fusion 360 account through My Cloud Posts.

*** Unzip and install in Macintosh HD> Users> USERNAME> Autodesk> Fusion 360 CAM> Posts

**** After enabling cloud libraries in Fusion 360, you will be able to access your cloud post processor library by setting the Configuration Folder (Windows) or Source (Mac) to My Cloud Posts. Both of these dialog boxes are shown below. You will then be able to select the Cloud post you uploaded in the Post Configuration field (Windows) or the Post Processor field (Mac).

*** In Fusion 360, when you select Actions > Post Process, under Settings select Personal Posts for the Source

**For '''Cloud'''

*** Open Fusion 360 and navigate to Libraries > Assets in the Data Panel.

*** Double click the Assets > CAMPosts folder to enter it.

*** Use the Upload button to upload the desired post processor from your local machine to the Assets > CAMPosts folder. This will upload the post to the cloud and allow you to access it anywhere you may login to your Fusion 360 account through My Cloud Posts.

*** After enabling cloud libraries in Fusion 360, you will be able to access your cloud post processor library by setting the Configuration Folder (Windows) or Source (Mac) to My Cloud Posts. Both of these dialog boxes are shown below. You will then be able to select the Cloud post you uploaded in the Post Configuration field (Windows) or the Post Processor field (Mac).

 

====Chip Load Calculation====

====Chip Load Calculation====

*[https://gdptooling.com/chipload-calc/ Chip Load Calculator by GDP Tooling]

*[https://gdptooling.com/chipload-calc/ Chip Load Calculator by GDP Tooling]

*** Use a Cut Load Calculator to determine which feeds and speeds you should be using for your specific bits. An overview is avaialble at: [https://groups.google.com/d/msg/pumping-station-one/vUF3iKRQ9yc/_qNnLXzZ3QcJ]

*** Use a Cut Load Calculator to determine which feeds and speeds you should be using for your specific bits. An overview is avaialble at: [https://groups.google.com/d/msg/pumping-station-one/vUF3iKRQ9yc/_qNnLXzZ3QcJ]

** Collets

** Collets

*** We currently have collets for 1/2, 1/4, 3/16 and 1/8" shank bits.  

*** We currently have collets for 1/2, 3/8, 1/4, 3/16 and 1/8" shank bits.  

*** Try to keep them clean and store them away from dust between uses. Dust between the gaps will produce runout. The drawer mounted under the Shopbot is the right place to store these items.

*** Try to keep them clean and store them away from dust between uses. Dust between the gaps will produce runout. The drawer mounted under the Shopbot is the right place to store these items.

*** If the collet nuts are not threading smoothly try cleaning the threads with a small brush, spindle threads as well.

*** If the collet nuts are not threading smoothly try cleaning the threads with a small brush, spindle threads as well.