Finding the Edge or your part

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Patrick Thorn
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Finding the Edge or your part

Post by Patrick Thorn » Fri Oct 31, 2014 11:45 am

As all of you user probably know, finding the edge, corner or the centre of your material is key to making the X0 Y0 datum to start your milling process, especially if you making multi-sided parts.

Touching on the cutter, usually rotating, to each side and subtracting the difference to find the centre etc is relatively easy.
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However, at recent MDX-540 installations I have been training, users seem to be using a Centre Edge Finder, some call a Wiggler, some Wobbler etc etc. Since my early engineering days these devices have alway been around and use to have a main shaft size of 1/2 inch (12.7mm) and the limit on our larger machines (MDX540, MDX500, MDX650) is the maximum collet size is 10mm diameter.

You can get these Centre Edge finders on 10mm at affordable prices which will save time in your setting up the datum. They vary in price from £4.00 to £35.00 on Amazon and other sites. Starrett is a leading name and the model No 827MB is the business at £35.00.
Search:- Starrett No 827MB for product and videos using one.
Note: there are double ended models like above and single ended. Make sure if yu habe the double ended to hold the main central body in the collet, NOT the end.
Centre Edge Finder.jpg
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So we cannot endorse the quality of the different versions, so read the user reviews and make sure it has a 10mm shaft or less. (If you have or find one with a 6mm shaft then this will fit the MDX40A and the SRM-20)

If you already have an edge finder that is perfect for your needs, then please share it on the forum here.

PS saw a nice little laser pointer for the same process, at another customers.
Patrick Thorn
Premier Consultant - 3D Technology
Roland DG UK Ltd

http://www.rolanddg.co.uk

dneibert
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Joined: Sun Dec 07, 2014 10:25 pm

Re: Finding the Edge or your part

Post by dneibert » Sun Dec 07, 2014 10:44 pm

Thanks for this. This is great to have!

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Patrick Thorn
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Posts: 294
Joined: Thu Aug 11, 2011 9:19 am
Location: Staines
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Re: Finding the Edge or your part

Post by Patrick Thorn » Mon Dec 08, 2014 6:15 pm

Thanks for the reply. If we could find one that works with 6mm collet, then everyone could get one. :)
Patrick Thorn
Premier Consultant - 3D Technology
Roland DG UK Ltd

http://www.rolanddg.co.uk

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