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Forum topic by Greg posted 11-13-2017 03:09 AM 272 views 0 times favorited 6 replies Add to Favorites Watch
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Greg

328 posts in 2710 days


11-13-2017 03:09 AM

Topic tags/keywords: jig

Hey guys. I’m building a custom horizontal boring machine and have exhausted most options. I’m looking for your Insight on how to find a small drill motor with the following features. It needs to be Electric (120v preferably) , easily mountable, (preferably flat on at least one side.) I needed to spin fast because I’ll be using a small 7/64 Brad Point drill bit only. Finally, it needs to be precision with very little to no run out. I don’t really want to spend an arm and a leg, but at this point I’m willing to bite the bullet if necessary. FYI, I already tried a small cordless hand-held drill and a Dremel. The former was not fast enough and the ladder had too much run out. Thank you in advance for your help!

-- You don't have a custom made heirloom fly fishing Net? http://www.Sierra-Nets.com


6 replies so far

View Loren's profile (online now)

Loren

9627 posts in 3484 days


#1 posted 11-13-2017 03:23 AM

Something like a Taig micro lathe might do
what you want.

I have drilled classical guitar bridges on a
Shopsmith set up for horizontal boring. I
thought the machine was pretty accurate but
the tiny drill bit had a tendency to follow
the grain and the holes were not as perfectly
aligned as I would have liked, but still good
enough.

View jbay's profile

jbay

1857 posts in 736 days


#2 posted 11-13-2017 03:28 AM

I have some literature for some at my shop, I will look through tomorrow.

Here’s one from searching google
http://www.blackalloy.com/nostroke.htm

-- If anyone would like to see my Portfolio, PM me and I would be glad to send you the link.

View bigblockyeti's profile

bigblockyeti

4697 posts in 1557 days


#3 posted 11-13-2017 03:31 AM

A palm router might fit the bill if you can find one that will meet your mounting requirements. The precision should be better than a Dremel on most of the good brands, the complicating factor would be holding a bit with a shaft size of anything other than 1/4” as that what’s most have for a collet.

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John

224 posts in 1418 days


#4 posted 11-13-2017 03:27 PM

What about a drywall router. Like a rotozip? I dont know if they have the precision requirements you need but it has the speed and they have a small enough collet.

-- I measured once, cut twice, and its still too short...

View Greg's profile

Greg

328 posts in 2710 days


#5 posted 11-13-2017 04:13 PM


A palm router might fit the bill if you can find one that will meet your mounting requirements. The precision should be better than a Dremel on k of the good brands, the complicating factor would be holding a bit with a shaft size of anything other than 1/4” as that what s most have for a collet.

- bigblockyeti


Thanks for your suggestion! I too had thought about a palm router but the same problems kept arising as you suggested. Speed was also an issue.


What about a drywall router. Like a rotozip? I dont know if they have the precision requirements you need but it has the speed and they have a small enough collet.

- John


John I have been considering the RotoZip all along, but until last night hadn’t busted it out to inspect it. I should have done that sooner because I realized that I had 1/8 inch collet that my 7/64 drill bit fit into. The RotoZip can be mounted by its collar and all I have to do now is make a mounting bracket for that collar. So that I believe is going to be my solution. It also has a magnetic proximity switch that will allow me to turn it on and off easily with a tiny Rare Earth magnet. I’ll have to devise some kind of rocker switch . Thanks again for your suggestion!

Something like a Taig micro lathe might do
what you want.

I have drilled classical guitar bridges on a
Shopsmith set up for horizontal boring. I
thought the machine was pretty accurate but
the tiny drill bit had a tendency to follow
the grain and the holes were not as perfectly
aligned as I would have liked, but still good
enough.

- Loren


Lauren that’s good food for thought. Thanks for your suggestion I am going to seek out a 7/64 in Brad Point bit which should help with the wandering issue

- jbay


I have some literature for some at my shop, I will look through tomorrow.

Here s one from searching google
http://www.blackalloy.com/nostroke.htm

- jbay


JB, where have you been for the past 2 weeks!? This is exactly what I’ve been looking for all along. I’ve done Google search after Google search trying to find exactly the item you sent me I knew they existed from my manufacturing background but simply couldn’t find them, and then you come along. LOL Unfortunately, at this point I should have designed around this device. I can still use it with some additional engineering and will keep it in my back pocket just in case my RotoZip solution doesn’t pan out like I hope it will. I’d still like to see what make and model you have literature for at your shop. Thanks again for your suggestions and taking the time out to reply to my post it was super helpful!

-- You don't have a custom made heirloom fly fishing Net? http://www.Sierra-Nets.com

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Greg

328 posts in 2710 days


#6 posted 11-13-2017 04:17 PM

Here is the solution I came up with. I’m using an aluminum block one half inch thick as a mounting collar and it will have 2 mounting threaded holes to attached to my boring machine

-- You don't have a custom made heirloom fly fishing Net? http://www.Sierra-Nets.com

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