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Hey! This thing is still a Work in Progress. Files, instructions, and other stuff might change!
hlyman

Center Point Marker Device

by hlyman Jan 28, 2012
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I see a mention in the PDF of Drill Bit Bushings and an Extender Arm. Are those files available? I'm currently printing one of these and those extra parts look like they'd complete it quite nicely. This is a great tool and design. Thank you sir for sharing it with us.

Wow! Very elegant smart design that handily solves a common task. Thank you for making this available to the DIY community!

For those who are following this thing, I have the following suggestion:

You can smooth the 3D printed parts by brushing on ABS solvent cement #2354 my Scigrip. Or and, coat the parts with XTC-3D epoxy. This will make the sliding more easy and smooth.

Fantastic work! Thank you so much for sharing.

Have you sold this design to any big companies yet? It seems like a no brainer for a company to pick up, have you tried Stanley Black and Decker? Great job!

Sorry I haven't replied before, too busy replying to other inventions. Originally I did try the big companies, General Tool almost wanted it till they got a new product developer and the economy went bad.

I was reading Jetty's comment about kickstarter and I too think it would be a good idea. If you ever find the energy to do it let us know. You may be able to get some of that investment money back. A lot of the DIY community would probably participate to your kickstarter. They usualy do.

I am too old to start any new ventures. In my life time I have owned and sold several businesses.

The DXF file has been re-uploaded and it now shows 644 kb.

Sorry about that. I only posted once honestly. It got stuck in some kind of rety loop.

Fantastic product idea. A true shame about the trouble marketing. Unfortunately your story is far from unique.

By the way, the dxf file you setup is 0 bytes and errors out when I try to load. Any chance you could look into that?
Thanks and best wishes.

Fantastic product idea. A true shame about the trouble marketing. Unfortunately your story is far from unique.

By the way, the dxf file you setup is 0 bytes and errors out when I try to load. Any chance you could look into that?
Thanks and best wishes.

Fantastic product idea. A true shame about the trouble marketing. Unfortunately your story is far from unique.

By the way, the dxf file you setup is 0 bytes and errors out when I try to load. Any chance you could look into that?
Thanks and best wishes.

Great tool! Thanks for sharing

macegr,

What you suggest may be viable, however when I designed this thing it was inspired for the need to mark the center of a half inch dowel that I used in making a part for a radio controlled aircraft. Go for it and let me know how it works.

The Right Angle Jaw has been re-uploaded.

Jan 30, 2012

Please fix the right angle jaw file. it is at 0 bytes.

Thank you for posting this design, sorry the product idea didn't work out. By posting this design here, it will be used and help people build new things, instead of buried in the millions of garbage patents.

The two large L shaped parts: couldn't they be replaced with four solid beams that have swivel holes at each end? The end points would still be constrained to run along the X shape. That way you have a four bar linkage and if constructed accurately enough would still provide a center. The possible
disadvantage would be greater inaccuracy when measuring very small stock. However, it should be easier to make an accurate hole than an accurate slot.

kennwshmt,

Thanks for the comment. I am not interested in trying to sell this thing as I am 82 years old and don't need anymore businesses. As it is now public anyone that wants to make and sell them is OK with me.

maybe take a single print, single sale approach? no investment until someone has bought one.

Thanks Jetty,

I will check them out.

This is neat idea. Not so great that it didn't work out for you, especially as people want it. Have you considered "Kickstarter": http://www.kickstarter.com/http://www.kickstarter.com/

It sounds like an ideal project for them. It would get your dies funded, product made and make your project a reality. If you didn't get enough interest, then theres no financial risk to yourself. At the end of it, you would have a finished product that was ready to roll with other companies or via online sales.

That is a really nice device :-D

Thank you for sharing.