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Thanks for the example. I'm not quite sure how the M8 Teflon nut is fixed to the bracket with Loctite. I didn't think anything would stick to Teflon. Teflon must run almost frictionless. I have...

Either. There are more off the shelf sizes that are round.

I can get 1/2" long, round spacers from 4-40 through 1/2-20 threads in 1/4" diameter for the small threads and 1/2" diameter for the...

I compress the sides of the nylon spacer without modification. That is, I don't make it into a split nut. Actually, the forces required are quite small because the wall of the spacer is fairly...

I can do most of those things (actually, my local machinist can), but I'm looking for a cheap, solid, off the shelf solution. I've got several ideas for brackets but they cost too much to meet my...

I have looked into drilling and tapping UHMW and acetal, but I'm trying for a very simple, off-the-shelf solution. I can purchase pre-tapped spacers for less than $0.10 each. Recall, that this...

I'm not an ME and not knowing any better, I've been experimenting with lead screw nuts made from 1/2 inch long, round tapped nylon spacers (<$0.20 each). I want to use them with cheap allthread rod...

Surely, someone has an idea.

I understand that I have to use an over-sized tap to create threads in Nylon 6/6. Is there a rule of thumb to choose over-sized taps?

Thanks everyone. This is absolutely the most valuable discussion I have triggered in any forum, ever!

My idea is not in the killer class. It has limited value to just a few. For those reasons,...

Thanks.

Would it make sense to publish within this forum?

Lets say that you have a new design that is not patented...and you choose not to get a patent.

How do you record the first time that you produced, sold or otherwise used the idea that will hold up...

The consistency of allthread rod purchased from the same batch is pretty good. But when I compare allthread rods purchased from different sources, I get as much as 1/2 a thread difference in 3". My...

Here is a light duty thrust bearing design using mostly hardware store parts for #2, #4, #6, #8, #10, 1/4" and 3/8" allthread lead screws. The total parts cost for a 10-32 thrust bearing is $0.24.
...

If your Dremel Tool can connect to a flexible drive shaft, then you can mount the Dremel Tool to your router using the 20mm diameter, 2mm pitch threads on the end of the Dremel Tool. As in your...

I'm new to this forum, so please point me to the right place if this is in error.

I need an advisor or two or ten.

I'm currently building a small, low cost, light weight 3 axis CNC mill that is...

I am able to shim and adjust 8020 linear bearings to get very little play and can not make them bind up. Is it because I have a clean invironment? or is there something lurking in the closet?

My...

It sounds like you have a license to run one copy of BobCAD. They don't care what computer it is running on.

Download the install the newest version of V19 on the new computer. BobCAD Updates
...

If you doing a survey, contact CNCdude. He would know...and would want your survey to be accurate.

You are correct, there is no menu command to import a point cloud, however, I've imported them using scripts. Hard or easy depends on the format of the point data file. Can you provide a sample?

Write a private message to CNCdude, a member of CNCzone. If he doesn't know the answer, he will hook you up with someone who does.

There are a lot of mini-mills in the Sieg X2 form. Here are a couple of places to look at comparison information.

http://www.littlemachineshop.com/Info/minimill_compare.php
...

Go to their web-site http://www.8020.net and click on the GARAGE SALE sign. It will take you to E-Bay...where they get rid of their excess.

Yes and no. There is a learning curve. It's not brain surgery, but CAD/CAM seems that way sometimes. If you buy the training material, you will get up to speed faster.

Search this forum and...

Dave,

Where to start?

First, I chose BobCad to learn about CAD/CAM. I purchased V18 (with a free upgrade to V19), with the training videos for just a little more than you're price. I am now...

Solids are planar surfaces that have been stitched together.

1, select the lines that form a square or a rectangle. The arrow direction on each line must be head to tail.

2, execute the...

Heres one that creates an N-sided pyramid solid. You specify

1 NUMBER OF SIDES

2 XYZ POSITION OF THE CENTER OF THE BASE

3 RADIUS (distance from center of the base to a vertice)

4 XYZ...

If the price is right, I'm thinking about making a small (6"x6"x6") DIY jewelry mill based on Pacific Bearings, Dolphin series of linear guides.

According to their white paper, their Dolphin...

kiethor,

I'm relatively new to CAD/CAM and BobCad, so this is just my opinion.

I prefer designing in solids because I can use the Boolean/Difference function to see if there is any part...

InTheDark

I'm assuming your diamond solid is made up of some number of N-sided planar surfaces, somewhere out in 3D space.

Here is a script that builds an N-sided planar surface. If your...

To see lots of measurement companies at one place, attend the
http://www.sme.org/westec show next week.