12 years at Rejent. Now moving.

Well, I’ve been here at Rejent on and off for the last 12 years. Now the company is moving to different digs and I figured I’d take some arguably unflattering pictures of the shop. Things are in disarray and thigs are a bit dirty as well.

Right now these things seem mundane but in 20 or 40 years there will be somebody, perhaps even myself who will enjoy looking at photos like these. Our new place will be in the old Precimax building and while it doesn’t have that much more room, it will be a fresh start and we can organize things with a pinch of pride.

Here’s to a good move!

Machining
Work

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New Linear Gages are ready to go.

We’ve had these things in waiting for quite some time. I’ve designed them to be lighter, more accurate, less snaggy and a bit sleeker. They take the standard heads that I’ve made for the last 4 years and still move linearly so that you can put whatever kind of styli you want on them. The older ones used to snag due to the fact that there were two bearing being forced to cock over in certain circumstances.

A view of the working end of the gage

As things heat up in the world and the economy either booms or busts, hopefully we’ll be able sell some!

Machining
Work

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Plumbo – A simple way to measure horizontal rotation

Over the years I’ve had issues with large parts and finding easy ways to lay them out angularly, especially on the ram EDM. During this time I’ve kind of tinkered in my head with an idea whereby you have a level of sorts stuck to the part and you simply rotate it and have a direct reading of rotation applied to the part. I have tried those digital levels but accelerometers don’t have the precision required to get within a few thou over, say 6 inches.

The prototype device as it is right now

It’s obviously very rough and uses a cheap Chinese 2000ppr encoder but it’s good enough for .045 degree increments. I would trust this thing for some larger layout and alignment work. That said, I have a nice US digital encoder on the way with 10000cpr (40000 ticks all the way around) so a resolution of .009 degrees. Some issues I’m having is with the mass. If the mass is too small it won’t overcome the friction of the bearings completely and if the mass is too large it swings for a long time making it a hassle to allow it to settle. I’d like to find a solution whereby I can add friction without adding stiction. Frankly the whole thing needs a good concept redevelopment but I believe it’ll be a handy tool in niche situations.

I’ll keep this updated as I go along.

Electronics
Machining
Personal Projects

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Rejent in 2021

Well, here we are, 2021 is here. Let’s show the shop as it stands in 2021. This is of course only the machining side but in another 10 years the pic will be of interest to people who like this kind of stuff. Also, been here for over 10 years now. wow.

Rejent Tool from the north-east side
Rejent Tool from the north west side.

That is all.

Electronics

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New Rejent Bore Gage ready to ship

Well, for some time we’ve taken to building new Bore Gage for a customer. In an odd twist, I had very little to do with the mechanical design but was primarily focused on the electronics and software.

Basically what this device does is measure the bore of a hydraulic cylinder in a comparative way all the way down the bore. It uses a Mitutoyo encoder for the diametrical size and a US digital rotary encoder on the wheel to keep track of the distance down the bore. As the device measures, it keeps track of the position and the measurements therein and creates zones where an average, maximum, minimum and sample size is kept. It is then plotted out along the distance.

Anyways, I had some fun doing this project and I am looking forward to doing more.

Electronics

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Still kickin’ and alive

Like many of my posts, I simply update for the sake of updating. That’s fine as far as I’m concerned. A lot has happened since my last update. Been to Japan, designed a bit of stuff and just have been simply living. Here are a few things I’ve been working on…

This is a gage I designed and is now going all over the place.
This is a prototype master I am working on which will have motion control.

So, with that. I finally took the trip I’ve been wanting to go on for 20 years, to Japan. Now, I’m not a real weeaboo or anything but I’ve always been fascinated by the notion of such a large dense city such as Tokyo and so, with my girlfriend, we went to Tokyo for almost two weeks. It was absolutely amazing!

All in all, I’ve been enjoying my days, playing Rust and just plugging away.

Electronics

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The Gages are complete and ready to ship

After a bit of work and worry, the gages are ready for shipment and are as nice as I could hope for.

I’m quite proud of these, they’re repeatable and feel damned good in the hands.

Machining
Work

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Some new DNMG boring heads I designed

Well, the new boring heads I designed came out well, especially after nitriding. Man! is that black finish ever nice! I’ve made many heads before but these turned out nicer than usual.

a forwards facing dnmg holder with a large offset

The whole order

The backwards dnmg holder

Well, things are getting busy, I’m sure there will be more to post soon, especially as our gages get done!

Machining
Work

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Back at Rejent and back in the design chair

It been some time since I’ve updated this blog. While I have designed and made quite a few things, it’s been at the very bottom of my list to update this blog. Anyways, here are a few things I’ve worked on or am working on.

New RTJ gage

So, in an effort to simplify the manufacturing and generalize the usage of the gage I have redesigned it. With 3/4″ of travel it will allow for the use of almost any attachment along with the balls that typically fit something like this.

A rough early version of the new gage

Still will take some time to actually manufacture it but whatever.

A quick gage for a customer

These were commissioned from a customer for the quick checking of a particular size on a production job.

Nothing too spectacular there.

I’ve worked on a few other things such as the forklift safety system. This device was meant to be attached to the forklift and engage a horn when the forklift went to fast. It was completed but the company no longer required it.

Anyways, time to start some more interesting projects in the future.

Electronics
Machining
Personal Projects

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Inside an ALC-7701 Mitutoyo Scale Counter

I need to find out the pinout of a Mitutoyo Counter, well the encoders anyways. I wasn’t able to determine exactly which one was what but we’ll see.

When I do figure it out, I will post the pinout as best I know.

Electronics
Machining

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Fucking around with VB2005

So I’ve decided to get my feet wet again with programming after a long hiatus doing other things like photography and electronics. I thought I wouldn’t have any problem programming again but little did I realize how trained your mind becomes with certain patterns of thought through programming. Electronics, being a utilization of a natural force, is often non-linear in nature and required a different mind set, even small numbers of components can produce complex results/problems.

So for the last few days I’ve been trying to make a new program based on an idea I’ve had for some time, the name of this idea is Notary. Notary is a very simple program in implementation but if you keep up with entering data into it, it becomes useful.

Here is the premise of Notary:

  • User(s) are greeted with nothing more than a window with a text box.
  • The User enters any kind of text, for example, a phone number along with a name or a description of how you solved a problem
  • the text is stored in a very simple database, essentially an ascii file with record headers and unique IDs
  • The user can then later search the database to retrieve information that is directly or indirectly related to a search term

This sort of approach has probably been taken before but in much more complicated ways. I intend for the computer to search and present the information appropriately rather than the user trying to wrack their brains to make the data useful or search the data.

Here are some of the key ideas:

  • Make the interface simple. Hence, the simpler and easier it is to use, the more likely a person is to enter the data.
  • Allow future replacement and deletion of data, but never get rid of it, allow for future recovery and allow indirect search through this void data.
  • Allow 2nd to 3rd order matches to a keyword, in other words, allow the relationships from the keywords have record commonalities from 2 or 3 levels away. Inference of this kind, especially on large databases, allows for unexpected info recollection.
  • Allow database blending, thus you can have multiple databases blended together from various locations at any time.

Hopefully I can implement these ideas well. I’ll keep working on it, and if anyone actually reads this site, I post it as well in one of my side pages.

Notary

Simple.

Programming

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Arts and crafts

I just finished a stint of working all weekend on a model for my bosses apartment building. Considering the kind of work I’ve done in the past, this was actually quite fun.

apartment model another photo of the model

Click on the above pictures to see

Other/misc

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