this post was submitted on 02 Aug 2024
17 points (90.5% liked)

Woodworking

6215 readers
2 users here now

A handmade home for woodworkers and admirers of woodworkers. Our community icon is submitted by @1985MustangCobra@lemmy.ca whose father was inspired to start woodworking by Norm and the New Yankee Workshop.

founded 2 years ago
MODERATORS
 

I need to drill holes at exact positions to affix large workpieces to my cnc for two-sided machining. My drill press is not large enough to reach all drilling positions, and drilling by hand often results in a non-90° angle. I know for metalworking there are magnet drill presses to drill holes in steel beams. But is there something similar for wood?

you are viewing a single comment's thread
view the rest of the comments
[–] Tolookah@discuss.tchncs.de 15 points 4 months ago (3 children)

Can you drill a thick ish square of wood in the drill press and then use that as a guide for the big piece? (Clamping it down). That's about what I would do. (I might use a metal insert on the guide if it's super super critical)

Note: I'm Not an experienced woodworker, I've used this before for drilling 3d printed pieces.

[–] CM400@lemmy.world 13 points 4 months ago

Yes, making a jig is the way.

[–] alleycat@lemmy.world 3 points 4 months ago (1 children)

This type of guide would wear out too fast, I think. It would also take away from the drill length, which I need to drill relatively deep holes (high depth to Diameter ratio).

[–] Tolookah@discuss.tchncs.de 3 points 4 months ago

Then you likely want a hard drill bushing. That'll let it be thinner than a wood jig, but still tool steel to not wear out. (Wood to support the bushing)

[–] Revan343@lemmy.ca 2 points 4 months ago* (last edited 4 months ago)

I mostly work with metal, but this is exactly what I'd do OP. If it's not an option, then there are jigs you can buy that will work.