Online Resource Links

This is a dynamically generated list of useful online resources. At this point it is one large list. You can search through the list with the search box on the right. Searching will minimize the list to those entries containing the text you have entered, for example “manual” or “CNC”.  You can save out the list with the buttons on the upper left. Eventually I will create separate, filtered lists on different topics to aid in searching and discussion.

IronPunk Projects

These are the projects that will be completed for the first round of Ironpunk.

Procedural Projects (those which do not make an object)- These will have a listing of online resources and a short demonstration video.

  • Speeds – SFPM, RPM, how to calculate, resources for determining SFPM for different materials and tools, adjustment due to cutting conditions
  • Feed rate using chip load calculator – Explain chip load, feed rate and how they relate and are calculated with simple math. Reference on-line and Android calculators for determining feed rate based on chip load. Use chip load calculator in TouchDRO to tune autofeed and hand feed. Get familiar with proper feed and how it feels. (possible feature for TouchDRO, use graphic to show difference from ideal chip load during feeding)
  • Indicating a vise
  • Tramming the mill head
  • Edge finding

Part Projects – Each of these will contain:

  • Videos – At least an introduction, probably step by step instructions of anything complicated.
  • Written instructions
  • Prints utilizing proper GD&T
  • Images of each fixturing setup
  • 3D rendering of the completed part
  • Links to outside useful information.
  • Drill Gauge Project
    • DRO use in milling stock to length
    • Do not cover scribing, refer to resources
    • Edge find origin – separate video
    • spot drill holes using standard DRO techniques
    • drill holes using preset points in TouchDRO
    • Ream holes using “closest point” feature in TouchDRO
    • chamfer holes on near side with “closest point feature”
    • flip part, adjust work offset and chamfer holes on backside
  • Squaring a block – Start with raw stock. Discuss methods for squaring. Discuss how square is a spectrum and that you need to make it square enough for the application and tolerances. Methodologies for different types of stock (bar stock, cut from plate etc.) Use incremental coordinate presets with the DRO to square stock to a specific size.
  • Making the case for the Touch DRO
    • Start with a squared block (from first project).
    • Edge find a corner for the origin and set the workspace origin.
    • Add points to TouchDRO from the drawing
      • 5 drilled and tapped holes
      • Add point for center clearance hole
    • Drill and tap five holes to mount the top of the case
    • Drill the center hole
    • Add the 4 corner points to the TouchDRO
    • Using “Mill to Zero” methodology to hollow out the block.
    • Add the four points for the board mount holes to the TouchDRO
    • Drill and tap the four board mount holes

Parts list

This is the beginning of the parts list. It is incomplete at this point. I’ll add more as I sort through my expenses. The spreadsheet is interactive. The columns are sort-able and the search box below will filter the entries so that, for example, if you want to just see the things I purchased from MCM you can just type “MCM” into the search box. You can download this spreadsheet in multiple formats using the links in the upper left corner. If you have trouble using this spreadsheet, please leave a comment and include your browser and computer type.

Board Hookup Notes

Keeping with the rough draft nature of this section, I’m just dropping some notes on the board hookup process. This will get filled in and expanded upon and eventually graduate to the Resources section.

  • Need appropriate crimpers
  • 22 gauge wires will work with 24 gauge terminals and fittings, just barely
  • crimping is easier and quicker than soldering as long as you have the right crimpers
  • not all heatshrink tubing is the same, black vs, clear.
  • If you have a local shop, it is worth it to pay a bit extra to be able to test fit and make sure
    you get the right stuff the first time. What you save in part prices can be quickly lost in
    shipping charges from multiple orders to get things right.
  • Solid vs stranded wire.
  • Cheaper wire in budget scale
  • Problems with connecting two D-Sub connectors