VansAirForceForums  
Home > VansAirForceForums

-POSTING RULES
-Advertise in here!
- Today's Posts | Insert Pics

Keep VAF Going
Donate methods

Point your
camera app here
to donate fast.


Go Back   VAF Forums > Search Forums
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read

Showing results 1 to 34 of 34
Search took 0.00 seconds.
Search: Posts Made By: monkworkz
Forum: Electrical Systems 07-24-2022, 11:58 AM
Replies: 69
Views: 9,336
Posted By monkworkz
Thanks for the reminder, this is for sure...

Thanks for the reminder, this is for sure something I'd like to tackle. I'll send you a message.

Bill
Forum: Electrical Systems 07-17-2022, 12:14 PM
Replies: 69
Views: 9,336
Posted By monkworkz
Hi, Yes, I'll bring one along for people to...

Hi,

Yes, I'll bring one along for people to check out.

Bill
Forum: Electrical Systems 07-02-2022, 06:21 PM
Replies: 69
Views: 9,336
Posted By monkworkz
Both are crank RPM, so around 1000 RPM crank RPM...

Both are crank RPM, so around 1000 RPM crank RPM you'll get 15 amps, 1800 crank RPM you'll get 30 amps.
Forum: Electrical Systems 06-29-2022, 12:17 AM
Replies: 1
Views: 769
Posted By monkworkz
Monkworkz at Oshkosh

Greetings,

I was able to get a speaking slot at Oshkosh, July 29th at 1 PM in Workshop Classroom C. Full info and description of the talk is available...
Forum: Electrical Systems 06-13-2022, 11:17 AM
Replies: 3
Views: 670
Posted By monkworkz
I use this diode: STPS24045TV Mouser has...

I use this diode:
STPS24045TV

Mouser has one:
https://www.mouser.com/ProductDetail/STMicroelectronics/STPS24045TV

hard to get right now but you can see that it's rated for 240 amps, and then it has...
Forum: Electrical Systems 05-20-2022, 11:17 AM
Replies: 69
Views: 9,336
Posted By monkworkz
Yep, everything shipped from now on will have the...

Yep, everything shipped from now on will have the lip to engage the vacuum pad mount inner diameter.

Bill
Forum: Electrical Systems 05-20-2022, 05:50 AM
Replies: 69
Views: 9,336
Posted By monkworkz
No issues working with vertical power, it behaves...

No issues working with vertical power, it behaves like another power source.

Bill
Forum: Electrical Systems 05-19-2022, 08:00 PM
Replies: 69
Views: 9,336
Posted By monkworkz
Adel Clamp Mounting

I've done adel clamps on opposite corners. The case is machined out of 6061 and the mounting tabs are just less than 0.25", so plenty beefy.

You can drill out the #6 mounting holes to AN4 to work...
Forum: Electrical Systems 05-18-2022, 02:56 PM
Replies: 69
Views: 9,336
Posted By monkworkz
Belt Drive

Hi Jesse,

Yes, I am working on a belt driven version. There are some mechanical hurdles so don't expect anything for quite some time but it is my intention to make one that runs on the front of the...
Forum: Electrical Systems 05-17-2022, 11:18 PM
Replies: 69
Views: 9,336
Posted By monkworkz
Direct Drive

Yep, it's direct drive, the only thing between the generator shaft and the vacuum spline gear is a shear coupling.

Bill
Forum: Electrical Systems 05-12-2022, 08:54 AM
Replies: 69
Views: 9,336
Posted By monkworkz
You'll get 15 amps at around 1000 RPM, over 1800...

You'll get 15 amps at around 1000 RPM, over 1800 you get 30 amps.

Bill
Forum: Electrical Systems 05-12-2022, 08:11 AM
Replies: 69
Views: 9,336
Posted By monkworkz
Engagement Mount

Hi,

Engaging the ID of the vac pad is certainly better.

I have a mount in the works that engages the vac pad just as you suggest, I've notified customers and offered an upgrade. Any future...
Forum: Electrical Systems 05-11-2022, 10:31 PM
Replies: 69
Views: 9,336
Posted By monkworkz
Warranty

Hi Walt,

You are correct, I don't have a warranty posted on the website but I'm happy to match the industry standard of 200 hrs/2 years.

I think I can do much better, ideally 2000 hrs MTBF, and to...
Forum: Electrical Systems 05-11-2022, 02:31 PM
Replies: 69
Views: 9,336
Posted By monkworkz
Exactly, the rotating mass is around 11 oz, or...

Exactly, the rotating mass is around 11 oz, or 320 grams, take away the shaft and its 9.5 or 270 grams oz a lot less than other rotors. Substantially less than 1 kg.

The rotor sits very close to...
Forum: Electrical Systems 05-11-2022, 01:10 PM
Replies: 69
Views: 9,336
Posted By monkworkz
Dynamic Disassembly

Greetings,

Dynamic Disassembly, We really hope this doesn't happen obviously!

The generator has been on a 10:1 compression IO-360 for 300 hrs, no issues with the generator coming apart. I did have...
Forum: Electrical Systems 05-10-2022, 07:58 PM
Replies: 69
Views: 9,336
Posted By monkworkz
No issues, but you'd be 100% limited to the...

No issues, but you'd be 100% limited to the current limit, subject to RPM, so if you had a load that went over the current limit the voltage would reduce until the current limit was managed. If there...
Forum: Electrical Systems 05-09-2022, 10:40 PM
Replies: 69
Views: 9,336
Posted By monkworkz
Direct Connection to the Battery Not Recommended

Thanks for the comments Carl!

Somewhere I thought I saw a question about connecting the generator directly to the battery, this isn't recommended, there is a resistive voltage divider on the output...
Forum: Electrical Systems 05-08-2022, 10:18 PM
Replies: 69
Views: 9,336
Posted By monkworkz
Thanks for the kind words Lenny. Yes the device...

Thanks for the kind words Lenny.

Yes the device does self-protect but those limits are meant to be more like guard rails, if the cooling ducts aren't installed, landing on Venus, that sort of...
Forum: Electrical Systems 05-07-2022, 02:57 PM
Replies: 69
Views: 9,336
Posted By monkworkz
Thanks for the Replies!

Thanks for the kind words everyone, I think that this is a great product and that others can benefit from it.



The device is quite a bit smaller, so the heat gets concentrated in a smaller volume...
Forum: Electrical Systems 05-06-2022, 12:46 PM
Replies: 69
Views: 9,336
Posted By monkworkz
More details

Thanks for the replies.

Parasitic load:
I think this is in the noise.
When there is no load on these generators they basically present very little resistance, so with no electrical load almost no...
Forum: Electrical Systems 05-05-2022, 10:25 PM
Replies: 69
Views: 9,336
Posted By monkworkz
2.6 lb, 30 amp Monkworkz Generator Intro Videos

Greetings,

I made a couple of videos talking about the 2.6 lb, 30 amp vac pad generator I developed and have been selling:

Introduction (https://youtu.be/U-AkljOpqmc)
Bench Demo...
Forum: Electrical Systems 01-09-2022, 09:47 PM
Replies: 23
Views: 3,666
Posted By monkworkz
Monkworkz will give you 15 amps at 1000 RPM

The Monkworkz MZ-30L will give you 15 amps at 1000 crank RPM, 2.6lbs all up weight, and the shear coupling is completely redesigned. Above 1800 RPM it will give you 30 amps.

Yes you do have to...
Forum: Electrical Systems 12-05-2021, 07:16 PM
Replies: 8
Views: 2,009
Posted By monkworkz
Try one of mine

You're welcome to try one of my generators, less than half the weight, more compact, same current and I haven't had any shear couplings fail. I have a feature that starts the device slowly over 100...
Forum: Electrical Systems 12-05-2021, 12:13 PM
Replies: 13
Views: 1,703
Posted By monkworkz
Breakdown voltage

I believe the breakdown voltage is just preventing the protected bus from getting pulled down by a main bus fault, you should only need enough to stop the reverse flow, nothing more. those 100V...
Forum: Electrical Systems 10-26-2021, 03:23 PM
Replies: 0
Views: 949
Posted By monkworkz
Monkworkz MZ-30L on an Inverted Oil RV-7

Greetings,

I helped a friend install a Monkworkz generator for backup power on an RV-7 with inverted oil. The inverted vacuum pad adapter works great, we had to adjust the "clocking" of the elbow...
Forum: Electrical Systems 10-11-2021, 02:19 PM
Replies: 2
Views: 1,106
Posted By monkworkz
Low Pressure Sensor

Low pressure sensor board is on my list of things to do, it would make these measurements a lot easier...
Forum: Electrical Systems 10-11-2021, 12:37 AM
Replies: 2
Views: 1,106
Posted By monkworkz
Monkworkz Blast Tube Measurements: 1.5% loss

Greetings,

Couple quick mentions before I get into the testing:

1. The generator all up weight is 2 lbs, 9 oz, so pretty close to 2.5 lbs rather than the 3 lbs I have been saying. 3 lbs was an...
Forum: Electrical Systems 09-07-2021, 07:13 PM
Replies: 25
Views: 8,114
Posted By monkworkz
I measured at 100 and 150 knots IAS, at 100 knots...

I measured at 100 and 150 knots IAS, at 100 knots the most I see is 0.2 inH20 loss from letting the holes from the ducts remain completely open. Saturday I did runs with the two ducts and with the...
Forum: Electrical Systems 08-24-2021, 11:45 PM
Replies: 25
Views: 8,114
Posted By monkworkz
Sure but temperatures without any context of what...

Sure but temperatures without any context of what components and materials is meaningless. This is like me telling you I had an "engine temperature" of 300 degrees and asking you to let me know if...
Forum: Electrical Systems 08-23-2021, 10:58 PM
Replies: 25
Views: 8,114
Posted By monkworkz
This falls into the reverse engineering category,...

This falls into the reverse engineering category, you're on your own.

Sorry,

Bill
Forum: Electrical Systems 08-23-2021, 10:55 PM
Replies: 25
Views: 8,114
Posted By monkworkz
It is not recommended, you would need to add a...

It is not recommended, you would need to add a fan to replicate the cooling provided by the baffles.

thanks,

Bill
Forum: Electrical Systems 08-23-2021, 10:30 PM
Replies: 25
Views: 8,114
Posted By monkworkz
Hi Dan, I can't hand over any data that would...

Hi Dan,

I can't hand over any data that would enable reverse engineering.

What would you do with temp profiles anyway?

The logical sequence of questions would be:
Is that good? Its just a bunch...
Forum: Electrical Systems 08-23-2021, 09:49 AM
Replies: 25
Views: 8,114
Posted By monkworkz
Hi Dan, I have to be honest, I do not have data...

Hi Dan,

I have to be honest, I do not have data on what the difference in CHTs is, I don't have data recording capability in my EMS.

Anecdotally I didn't notice anything. Keep in mind, its not...
Forum: Electrical Systems 08-22-2021, 10:16 PM
Replies: 25
Views: 8,114
Posted By monkworkz
Monkworkz Introducing the MZ-30L

Greetings,

In reference to the front page on Friday Aug 20, 2021.

Device name: MZ-30L.
Description: 3 lb, 30 amp, vacuum pad driven generator for experimental aircraft running Lycoming...
Showing results 1 to 34 of 34

 
Forum Jump

All times are GMT -6. The time now is 06:33 AM.


The VAFForums come to you courtesy Delta Romeo, LLC. By viewing and participating in them you agree to build your plane using standardized methods and practices and to fly it safely and in accordance with the laws governing the country you are located in.