Rope Twister: an indexer program to create rope twist files

Overview...The Rope Twister does the calculations and creates the part file to do rope twist turnings on a ShopBot indexer. It needs one of the fancy rope twist (sometimes called Barley Twist) bits that look like a stretched out roundover bit that comes to a point in the center. The program calculates the angle that the twist has to be made in to fit your blank diameter and bit size, which may or may not end up being the look that you're shooting for. In other words, if you want a precise SPACING between the twists this is the program for you, but if you want a particular ANGLE of the twists then the spiral option in the Indexer Virtual Tool might be a better choice. [ Update 04/04/07 Calculator added to zip file to calculate twist values to enter into Indexer Virtual Tool ]

Notes...Your indexer MUST be connected to the B-axis in your control box for this to work. And the Z-axis has to be zeroed at the center of the blank.

Contact info...Bill Young

Download size...24 k

Project Type...Program

Additional equipment/software required...nothing other than an indexer and those fancy bits

Special instructions...It's possible...and quite easy actually...to enter values for a turning pattern that's impossible to actually turn. For instance you can't do 3 wraps with a 2" spacing around a 1" radius blank...they just won't fit.

Known Issues...None so far, but as always make sure that you aircut to test before actually using the file with a blank.

Confidence...

Completeness...

Download the Rope Twister




Confidence is a measure of how far along a project is in the opinion of the person that created it. If it only has 1 star then it's very rough, more likely to not work than to work correctly. 4 stars means that they think it's ready for prime time and just needs a little more feedback or testing. A 5 means that it's all done...you won't see any "5 star" projects in ShopBot Labs because at that point it's ready for release!

Completeness really goes hand in hand with Confidence and is the measure of how complete they feel the Project download is. It could include important things like if there are instructions or help files available, but also might reflect if there are sample files or even simple things like a lack of icons or graphics.