Centroid Community CNC Support Forum

I thought of that, but I didn’t want to buy an expensive transformer to find that it wasn’t supplying enough voltage. I wasn’t sure what the calculation is to figure that out— is it just as simple as applying the percentage? Yup. Transformers are all about the turns ratio. There are some small loss...

I just built and tested an exact replica of the capboard connected without a transformer today. I found with 180 ohm load the voltage drops to 145 VDC RMS. I have not yet, but I believe if I put my Oscilloscope on it I would find that the tops of the ripple are being knocked off.... If you want mor...

The buck/boost transformer is probably the cheapest option, and should work just fine. Another option, since you have 208VAC, would be to use a transformer than nominally steps single-phase 240V to 120V. These are extremely common. I won't say "dime a dozen", because when you price one ou...

How about something like this: https://www.larsonelectronics.com/product/149561/1-phase-buck-boost-step-up-transformer-126v-primary-115v-secondary-at-18-3-amps-50-60hz 16V drop should be enough ~ 145VDC. I looked at a Larson that was similar to that, but actually was a step down from 115VAC to 105V...

[quote=tblough post_id=46553 time=<a href="tel:1613655390">1613655390</a> user_id=528] They are labeled 150VDC MAX for a reason. What is that reason? I am NOT a CNC expert. I have only installed a single Allin1DC. But I am an engineer that has used, specified and tested motors for my whol...

As an Engineer as well, I wouldn't just assume the 150 max rating was arbitrarily assigned. If it can handle 10% over voltage then why didn't they assign a 160VDC max voltage? It's your motor. If you want to gamble that it can run at a higher voltage, run it at the higher voltage. If you decide you...

Hi, Everone I’m new to this forum and have just started a new conversion project. I have a question regarding voltage step down for Allin1DC servo driving. I have an RB-1 bed mill that I am converting to an Allin1DC and was wondering whether overdriving the servos a little is OK. I don’t really want...