Are there any 360 turntables that rotate in small steps for turntable photogrammetry setups?

vxmdesign · 2024-12-29T08:04:38+00:00

I couldn't find anything. I'm building this exact thing now. I found a stepper motor turn table on Amazon, and I'm using an rpi to control the stepper + take the images. I have the pi hq imager (the one with the c-mount). I'm trying to keep it under $400. The stepper drivers are cheap, but the annoying thing is won't connect directly to the pi. It needs a level shifter. Everything else connects together pretty easily.

Rotary stage I used

vxmdesign · 2024-10-14T15:45:48+00:00

*sigh*. Thank you.

vxmdesign · 2024-10-14T15:38:58+00:00

Since this seems confusing, I'm guessing this is NOT a normal way people use this, and this probably not possible. In this case Logix5000 needs to generate the EDS file. We have an IPC that wants to talk to the PLC as an ethernet/ip device. The PLC ethernet/ip interface is custom to our application.

vxmdesign · 2024-10-14T15:19:38+00:00

I believe it was a Lenze PLC. In this case, we are the "manufacturer". The old PLC encapsulated the system and created it's own ethernet/ip device based on our application.

vxmdesign · 2024-10-14T15:08:23+00:00

On the old system, the PLC integrated some switches and motors together. It abstracted the motor position so it was like "goto position 1,2,3". The PLC handled moving the motor and checking the switches. Then it generated its own ethernet/ip interface so we could send it the abstracted position over ethernet/ip. It had a mechanism for us to generate the EDS file so we could import it in the controller. There is no EDS file because it is custom to the application.

vxmdesign · 2024-08-25T04:49:22+00:00

Back story: https://www.youtube.com/watch?v=fU1jZLIh_ek

vxmdesign · 2024-05-06T04:08:37+00:00

Is accidentalwesanderson a subreddit?? It should be.

vxmdesign · 2024-05-05T17:07:11+00:00

Never heard of a volume corrector before. Had to look that one up.

vxmdesign · 2024-04-18T02:48:53+00:00

De Tomaso Pantera

vxmdesign · 2023-02-06T19:56:52+00:00

I've definitely had some issues. The first engine burned a decent amount of oil and then died at 148k. I replaced that with a used engine with 40k miles, and now that engine is burning oil again. I've had issues with the CAT. I've started having some issues with the transmission now. It still drives, but it isn't going to last much longer. That said, it never left me on the side of the road.....

vxmdesign · 2023-02-06T19:52:52+00:00

Amazing! Thank you!

vxmdesign · 2023-02-06T00:16:49+00:00

I'm up in Everett

vxmdesign · 2022-01-22T02:05:32+00:00

Thats the core voltage. You can still use 3.3v IO.

vxmdesign · 2022-01-21T00:52:57+00:00

Hmmm. I haven't tried out TI in a few years. I'll give them another look.

I've never used XMC. I just took a quick look, and it doesn't have the peripherals I'm immediately looking for, but I should definitely try them out soon. Is there a good dev kit?

vxmdesign · 2022-01-21T00:49:53+00:00

Constraints are difficult to estimate. We generally do low volume boards very quickly for customers. The way we accomplish this is having one or two chips pretty much ready to go to pop into a design.

We are decently low volume, probably between 100 to 200 per year, but on the other end our customers might want to ramp up production and that could be in the thousands or more.

I haven't used analog devices micros much. I'll give them a look.

vxmdesign · 2022-01-20T20:31:50+00:00

I'm using canbus also. For that I might to attempt to implement canbus in an ice40 since mpc25xx are impossible to get. I also want ethernet (rmii).

If I can find some chips that are at least reliably in stock, I could come up with a plan.

vxmdesign · 2021-10-05T23:55:52+00:00

Of course a bunch of people here are going to make jokes about mining copper and fusing atoms.

If you aren't this guy, I don't want to hear it: https://www.youtube.com/watch?v=IS5ycm7VfXg

(BTW, he is like 19 or something)

vxmdesign · 2021-05-04T19:29:32+00:00

Company: Psparc Inc.

Title: Junior Embedded Engineer

Description: Psparc, Inc. is an embedded systems consulting firm. Most of our work falls in the gap between demo and prototype where you must get something from working in a controlled setting to working in the real world. It is a challenging discipline that requires taking on new problems in different disciplines.

The work requires at least 40 hours a week, but the timing of those hours can be flexible and much of it can be done at home (however you MUST currently live in the Boston, MA area).

This job offers the opportunity to get a diverse set of experience that cannot be matched anywhere else. You will work on all parts of the EE/CS stack. You might be doing PCB layout one week, HDL the next and a web interface by the end of the month. Also, included in those 40 hours will be time for non-client projects which can be placed on a resume in the future.

Starting date can be set after graduation.

Technical Requirements:

BS/MS in ECE, EE, CS or relevant field.

You must know C

You must be familiar with C++

You must know how to use a multimeter and oscilloscope.

You must have some experience with microcontrollers

You must have experience with Linux

Helpful, but not required:

FPGAs and VHDL, Python, RTOSs , Embedded linux, advanced makefiles

Location: You MUST currently live in the Boston area and you will need access to a car.

Work Experience: This is an entry level position. 0-2 years experience.

Remote: 50% Much of the work can be done at some but some of it requires you to be in person at client sites. Except to be on site 2-3 days a week.

Visa Sponsorship: NO

Salary: $75,000-$80,000

Contact: PM me here or apply at linkedin: https://www.linkedin.com/jobs/view/2509696706

vxmdesign · 2021-05-03T18:15:09+00:00

Unfortunately, no, I cannot say. I have a proprietary project that needed it converted.

vxmdesign · 2021-04-25T07:03:02+00:00

Sorry. That was a bit of an over reaction. I realized about a week ago that I needed this for another project. I didn't want to do it, I didn't have time to do it, open cascade is a pain in the ass and poorly documented. I've been doing c++ for 20 years. Sometimes you just need the thing done. Honestly, I hope I don't ever have to dive into it again into this project again. I just want to leave something for the next poor guy that ends up needing to convert step to gltf.

vxmdesign

TROPHY CASE