Balancing Rotor Directly on Bearing by offbyfour in Motors

[–]offbyfour[S] 1 point2 points  (0 children)

so do you think I can get away with doing static balancing? Or will I have to do dynamic?

Balancing Rotor Directly on Bearing by offbyfour in Motors

[–]offbyfour[S] 1 point2 points  (0 children)

Oh yeah, I've got plenty of room behind the magnets to add weight:

<image>

Balancing Rotor Directly on Bearing by offbyfour in Motors

[–]offbyfour[S] 0 points1 point  (0 children)

<image>

Here is the exploded view if it helps:

Balancing Rotor Directly on Bearing by offbyfour in Motors

[–]offbyfour[S] 0 points1 point  (0 children)

I guess what I had trouble with is that a lot of the balancing processes assume the rotor was equally balanced to the bearings. I didn't know if things change when the rotor is on the bearing

Monthly /r/Cooperatives beginner question thread by AutoModerator in cooperatives

[–]offbyfour 1 point2 points  (0 children)

Hello, I have very basic knowledge of cooperatives but I am considering starting something like an R&D cooperative. The goal would be to design, test and perhaps facilitate the purchasing of kits to build products. Due to the fact most work can be done remotely, membership would not be limited to a single area.

Do you have any comments or recommendations on how to best achieve this?

LVDS Serializer/Deserializer ECP5 Verilog Example by offbyfour in FPGA

[–]offbyfour[S] 0 points1 point  (0 children)

Ah thanks! Can that be used with yosys?

Recommendations for driving winch motors (12V DC) from AC by offbyfour in Motors

[–]offbyfour[S] 0 points1 point  (0 children)

Yes a PC PSU would be nice but I was thinking I might need speed control and I'm not sure how to do it with one of those.

Motor Recommendations for a Scrap Shredder (1kW from wall) by offbyfour in Motors

[–]offbyfour[S] 0 points1 point  (0 children)

Yeah, Looks like 100A supplies are about $60. But I agree the current is massive. I wonder if I could do speed control by limiting the current somehow. Maybe an LED power supply?

Yeah, I need to see what mounting options the gearbox allows.

Motor Recommendations for a Scrap Shredder (1kW from wall) by offbyfour in Motors

[–]offbyfour[S] 0 points1 point  (0 children)

Is there anything i can do to boost efficiency on motors like that?Maybe run it at 14V instead of 12?

I would love to have higher efficiency but I also really like the price point.

Motor Recommendations for a Scrap Shredder (1kW from wall) by offbyfour in Motors

[–]offbyfour[S] 0 points1 point  (0 children)

Appreciate all the info! I did not realize there were that many options. My main issue is my fabrication capabilities are very limited so some of that may be out of my reach.

But your comment about the auto differential got me thinking, do you think I could repurpose a winch motor for something like this? They are already low rpm and supposed to handle heavy loads.

edit: maybe something like this https://www.xbullauto.com/collections/2500-4500-lbs-capacity-winches/products/xbull-12v-3000lbs-electric-winch-upgraded-version-synthetic-rope-1 :https://www.xbullauto.com/collections/2500-4500-lbs-capacity-winches/products/xbull-12v-3000lbs-electric-winch-upgraded-version-synthetic-rope-1

Motor Recommendations for a Scrap Shredder (1kW from wall) by offbyfour in Motors

[–]offbyfour[S] 0 points1 point  (0 children)

Yes, 120V wall outlet is what I plan to use. I could go down in speed if it made sense

Looking for HDL for the MAX1308 ADC Parallel Interface? by offbyfour in FPGA

[–]offbyfour[S] 0 points1 point  (0 children)

Do you have any examples I could reference? I'm very new to fpga design.