The Hobbyist's Machine Shop – Blog

"One Perfect Part at a Time"

SmoothStepper Installed

I received the Warp9TD SmoothStepper board about a week ago. I just had a chance to install it in one of my CNC controllers. I mentioned I ordered it a few posts back.

The picture there did not give a good impression of the actual size of this diminutive surface mount technology (SMT) circuit board. It is small but mighty.

I published a complete photo series of how I installed the SomoothStepper over in The Hobbyist Machine Shop web site under the “Projects” tab. Here is a short cut to the article.

There is an added bonus with a bunch of pictures of the Proxxon PD400 in action. I used it to make standoffs for mounting the SmoothStepper.

Gearotic Motion Software

Sounds almost perverse but that’s the name of Art Fenerty’s latest software. If you don’t know, Art is the creator of the MACH3 series of affordable CNC control software. Art has sold off MACH3 about four years ago so has had time to design gear making software. MACH3 is still very popular and widely used.

I love gear action and when I saw this in a mailing from Bob Warfield (CNC Cookbook) I knew I had to check it out. Here are some links to Bob’s blog and an explanation of the software directly from Art Fenerty: Welcome to Gearotic Motion. Here is another link from Bob Warfield as he is partnering with Art to promote the CNCCookbook as well as Gearotic Motion: Announcing Our New Partnership with Art Fenerty’s Gearotic Motion.

Here is a link to the Gearotic Motion webpage. I have only just looked this over in both Bob’s and Art’s web sites, but I know I will be ordering a copy. I have seen other software that does this but this is really affordable. Even better with one of the CNCCookbook deals.

One of these days I’ll probably be posting pics of some of the gears I have made. I have no personal recommendation until I can run it and test it out. There are lots of videos and Art has a user forum so it’s definitely gotta be worth the $75 investment. It certainly looks to be way more than a toy.

Proxxon Returns

Last November (2011) I shut down the Proxxon line from The Hobbyist Machine Store. This was probably poor timing being just before Christmas. However, the constant inquiry about the PD400 lathe for almost a year with zero sales was not something that was productive.

I have decided to list Proxxon products again at the store but not the PD400 lathe. Nothing at all wrong with Proxxon products. I like them and use them myself. I have some small inventory but I have decided not to stock the large items. I’ll let the wholesaler do that.

I am offering free shipping on Proxxon until June 1, 2012.  After that I will see if I can continue the offer.

Resting on an Obsession

I got myself into a binge improving my websites. I have to admit that web publishing and doing it well has become a personal obsession as big as working in my shop on “hardware” projects.

I suspect that creative work is never finished as almost any design engineer, graphic artist or programmer will admit they usually come to a stopping point rather than a finish. There is always that one more little tweak that can be added. At least I find that is true for me. What it becomes is a point of diminishing return and a decision is made that the mission (project) has been accomplished. There is no obsession to keep going.

I think I am at that stopping point in updating my blogs and website displays. Well, maybe it is more of a resting point. I am satisfied with design at the moment. I hope that for my sake it is a rather long rest. Ha! Now I can just need to train myself to just add content material and stop playing with design of the box.

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There is an aura of obsessive perfection about a machine shop and the people who enjoy machining. It stems from the general knowledge we work in the realm of one thousandths of an inch (or 0.0254mm). Not so well known is we sometimes get into one ten-thousandths of an inch, thankfully not often.

Some machinists, especially the newer untrained hobbyist types have an overwhelming creative desire or obsession for dimensional (± 0.000) precision. That is not the meaning of my THMS slogan, “One Perfect Part at a Time”.

I know there are times to be critical of exact dimension but that most of the time there is an important thing called tolerance. Good design includes and specifies tolerance.… Continue reading

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