Hole sizes for water jetting parts

Post a reply

Smilies
:D :) ;) :( :o :shock: :? 8-) :lol: :x :P :oops: :cry: :evil: :twisted: :roll: :!: :?: :idea: :arrow: :| :mrgreen: :geek: :ugeek:

BBCode is ON
[img] is ON
[flash] is OFF
[url] is ON
Smilies are ON

Topic review
   

Expand view Topic review: Hole sizes for water jetting parts

Re: Hole sizes for water jetting parts

by mmarien » Tue Oct 25, 2016 5:40 pm

Thanks. Makes sense.

Re: Hole sizes for water jetting parts

by dougm » Tue Oct 18, 2016 2:46 pm

The holes on most of the CAD parts are 1/16". This was for two reasons as I understand it. 1. allow for accurate finishing to final diameter, 2. save a little $$$ re: machine time. Takes time to cut all those holes.

Hole sizes for water jetting parts

by mmarien » Mon Oct 03, 2016 7:13 pm

I was going through the plans for all the metal parts. I'm going have them cut with water jet. I noticed the note on the "06 Spar Fittings" drawing the indicates that the holes are drilled undersized and reamed to 5/16". The holes for the AN3 bolts are shown as 0.187 so they are drilled to size. But because the water jetting isn't all that accurate I was going to cut the holes smaller and then just drill (or ream) them to size.

Reading through the form, quite a few builders have had the parts cut with water jet but I didn't find any mention of what size they had the holes cut. Any suggestions on what size should be used for water jet cutting for the 3/16" bolt holes?

As an aside the "COMPRESSION-TUBES.dwg" from the web has an error in the TB-4 part. The holes should have 1.5" between them. The one hole is drawn 1.813" from the other one. It is right at the bend.

Top