D5/Hurricane Drill Build

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Disaster Master

Social climber

Born in So-Cal, left my soul in far Nor-Cal.

Jan 20, 2011 - 11:38am PT

For Sure. Love Mine !

Thorgon

Big Wall climber

Sedro Woolley, WA

Jan 20, 2011 - 12:13pm PT

Luke Drillwalker,

Send me a message when they are available! The design is Top Self for sure!

Thor

"May the Force be with you!"

Luke Malatesta

Big Wall climber

Moab UT

Topic Author's Reply - Jan 20, 2011 - 12:33pm PT

Thor will do. All design credit can go to Middendorf! I am just reviving The project.

Thanks,

Luke

kev

climber

A pile of dirt.

Jan 20, 2011 - 01:55pm PT

Luke,

Put me down for one.

kev

Disaster Master

Social climber

Born in So-Cal, left my soul in far Nor-Cal.

Jan 20, 2011 - 02:17pm PT

All design credit can go to Middendorf! I am just reviving The project.

I bet with all the D5 hammer entheusiasm (sp) you could sell over 100 quick!

PS- does anyone know how to make this reply screen spellcheck?

Thorgon

Big Wall climber

Sedro Woolley, WA

Jan 20, 2011 - 05:22pm PT

Luke: I definitely concur, Middendorf has been "Tinkering" with gear a long time!

Thor

mikeyschaefer

climber

Yosemite

Jan 20, 2011 - 05:42pm PT

I'd buy one as well.

rick d

climber

ol pueblo, az

Jan 20, 2011 - 06:09pm PT

as said before, I am in for one.

hand drill only folks!!! ban the moto drill!!!

bubble boy

Big Wall climber

topanga, CA

Jan 20, 2011 - 06:12pm PT

Sign me up!

Luke Malatesta

Big Wall climber

Moab UT

Topic Author's Reply - Jan 20, 2011 - 06:38pm PT

Noted.

Luke

healyje

Trad climber

Portland, Oregon

Jan 20, 2011 - 06:41pm PT

My hammers are feeling listless, count me in.

atchafalaya

Boulder climber

Jan 20, 2011 - 06:54pm PT

I want one! Please...

Slakkey

Big Wall climber

From Back to Big Wall Baby

Jan 20, 2011 - 06:57pm PT

As I said in the other thread put me down for one too

Minerals

Social climber

The Deli

Jan 20, 2011 - 07:29pm PT

Luke, here are those photos…

I believe this is one of the original Hurricanes, from an early batch. The hardened insert sticks out quite a bit and the chamfer on the end of the shank is less pronounced than that of your prototype. The diameter of the insert on this drill is about 0.435”. What’s the diameter of the insert on the prototype?

As you can see, the striking surface on the well-used drill on the left is relatively flat, compared to the drill with the raised insert. It seems like a larger striking surface is easier to hit when drilling fast, and a narrow striking surface is more likely to cause the hammer to deflect. I think the edges of the hardened insert on at least one of my Hurricanes has chipped (a lot), and once it was ground flat again, the insert ended up almost flush with the top edge of the drill shank. As a guess, I’d say that the insert is more likely to chip if it is raised, and less likely to chip if it is completely seated within the drill shank.

The top edge of the shank will mushroom over time, but much less than if there were no hardened insert. The mushroom can be removed with a file or grinder (keep it cool…). I’d suggest seating the insert such that the bottom edge of the radius sits flush with the end of the shank. As far as the chamfer, I wouldn’t go any more than what is pictured on the drill on the right. More chamfer equals smaller striking surface. With time, the end of the shank is going to mushroom anyways, so might as well keep the chamfer minimal. Make sense?

The grip on the original Hurricane (right) is slightly longer; these drills were sold with the thin 9/16” wrench, which doesn’t require the entire wrench flat to be exposed.

It’s great to see this project moving along! Sure looks nice! Cheers!

EDIT: Thanks to Fuzzywuzzy for the almost new Hurricane!!!

Luke Malatesta

Big Wall climber

Moab UT

Topic Author's Reply - Jan 20, 2011 - 08:01pm PT

Minerals,

Thanks a bunch for the photos. The insert in the prototype and the one that I specified is close to that size (around 7/16 i think. I'll check when I get home.). Let me see what I can do about changing the taper with the machine shop. I also agree( and talked to Deuce about it) that having the insert .005 to .0010 above the striking face should be ideal. The insert should join flush with the striking face with use.

I think that cutting the grips a little longer (as shown with the unused one in your picture) so there is just enough clearance for the new thin wrenches will feel better on the hand.

Any body have any thoughts on this?

Thanks,

Luke

msiddens

Trad climber

Mountain View

Jan 20, 2011 - 08:01pm PT

if it wasn't clear before, I want one.

Luke Malatesta

Big Wall climber

Moab UT

Topic Author's Reply - Jan 20, 2011 - 08:06pm PT

msiddens. got you in for one. No list yet. I'll get to that when we are all satisfied with the design and I tell them to start cranking them out.

Thanks,

Luke

Minerals

Social climber

The Deli

Jan 20, 2011 - 08:16pm PT

Luke, glad to help out.

“I also agree( and talked to Deuce about it) that having the insert .005 to .0010 above the striking face should be ideal. The insert should join flush with the striking face with use.”

Perfect!!!

If you go with a longer grip, it’s easy for anyone to cut it shorter with a razor-knife, if they prefer. I put a fat bevel on the end of the grip to get rid of the 90-degree edge and to improve comfort.