| Author |
Message |
| < Technical ~ Best way to get a perfect 3-7/8" hole in 16 ga steel? |
|
 Posted:
Fri Nov 06, 2009 12:16 pm
|
|
|
Joined: 09 Sep 2005
Posts: 152
Location: Blacksburg
|
|
My roommate can take it up to the metal shop in the Architecture school, I can order a hole saw, worst case I'll get someone with a steadier hand than I to use a jig saw etc...just curious what the best tool for the job is here. Need 2 holes around 3-7/8", maybe 3-15/16" and really didn't want to buy a $25 hole saw for two of them, especially if there was a better way.
Thanks
Ryan |
_________________
1995 Suburban (big and slow) |
|
|
|
 |
|
| Posted:
Fri Nov 06, 2009 12:33 pm
|
|
|
Joined: 05 Jul 2009
Posts: 112
Location: Baltimore, MD/Blacksburg
|
|
| how close do they need to be to size? plasma/ torch/ saw and then grind would be pretty precise |
_________________
93 YJ, 44/60 locked/welded, chromos, 4:1, 38 SX's, H1's
2000 Dodge 1500 5.2 |
|
|
|
|
|
| Posted:
Fri Nov 06, 2009 2:09 pm
|
|
|
Joined: 09 Sep 2005
Posts: 152
Location: Blacksburg
|
|
| willhf1011 wrote: |
| how close do they need to be to size? plasma/ torch/ saw and then grind would be pretty precise |
Press fitting gauges into the holes is the goal... |
_________________
1995 Suburban (big and slow) |
|
|
|
|
|
| Posted:
Fri Nov 06, 2009 9:25 pm
|
|
|
Joined: 05 Jul 2009
Posts: 112
Location: Baltimore, MD/Blacksburg
|
|
| If you have access to a die grinder and don't want to buy a hole saw then i'd say cut them out rough and then open the up with the die |
_________________
93 YJ, 44/60 locked/welded, chromos, 4:1, 38 SX's, H1's
2000 Dodge 1500 5.2 |
|
|
|
|
|
| Posted:
Sun Nov 08, 2009 12:27 pm
|
|
|
gittin awn eet.
|
Website Admin
Joined: 14 Jan 2006
Posts: 689
Location: Blacksburg
|
|
hole saw / drill bit will always be about .015 too big ..... FYI. so press fit wont happen.
the only way to get a press fit for those guages (assuming you mean a true press fit / interference fit) will be to undersize the hole and finish it out to size by hand ....
or find a machine shop with a CNC to mill it out ... which will be your best bet.
but since you say gauges ... im assuming you dont mean a true press fit ... and im assuming that you have probably 1/8" to 3/16" to play with because of the bezel on the face of the gauge .... holesaw or undersize it / rough cut it and then open it up with a burr on a dremel / die grinder
thank me later. |
|
|
|
|
|
|
|
| Posted:
Sun Nov 22, 2009 12:32 am
|
|
|
Copy
|
Joined: 01 Apr 2006
Posts: 462
Location: NOVA
|
|
| You dont have to have a CNC. You can use an adjustable boring head on a regular mill. Maybe the metal shop might have one, or something similar. |
| Attached Image: |
|
_________________
92 Toyota pickup, 5VZFE, SAS, 30 splines, football cover, spooled and locked, 4.10s, SOS prototype rear disc brake conversion |
|
|
|
|
|
