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Hows this for a reason to have light weight and cheap hydraulics... A hybrid pneumatic+hydraulic pedal car where there is a compressor unit (the pedals) consisting of an axial piston pump directly...

i was thinking about axial piston pumps with a variable displacement as being the thing to have along with motors and cylinders

Just day dreaming a bit I guess... Many possibilities for improving things like bicycles, scooters, drones, etc but only if they could be supplied with a transmission and motors that have 10,000 hour...

I was looking at electric scooters and decided to see the difference between lead acid and lithium... big one is weight with lithium being by far the less heavy the next big one is price with lead...

Just asking I do not develop anything... I saw on the web that kites with LONG lines can essentially tie in knots unless the lines are stabilized to prevent them from thrashing about... I have also...

I don't have any silicone caulk handy... Just a thing to think about I guess but printing with flexible material would be tricky

@steve323 - silicone in water will form a skin in seconds and after a minute the skin can be thick. If silicone is actively mixed with some water it turns white and cures hard in minutes. Since the...

I have it in my head that a 3d printer could be made out of silicone caulk using an ultrasonic humidifier to supply the water. basically that is it... there is a humidifier constantly covering the...

Seems like the valve is perfect for something like a pulse jet since it allows a flow in 1 direction easily with alot of resistance the other way. Not sure if its effective as the valve design gets...

www.goodcnc.com has more pictures and videos of the machines.

I asked for the cost of a machine shipped to my home address and was told they could not send to my address but... It says "CRF CHICAGO USD 18,000.00" and I do not know what CRF means. Over 165...

The small travel machines with 2.9 hp spindles and X=12.9,Y=8.6 travel are listed on Alibaba.com for $15,000+. Have to wonder how these will compare with something like the UMC-10 and what that total...

Taig 2019 CR ER Servo Driven for Strong Fast and Accurate 90 IPM Speeds | eBay

A little dusty looking in the pictures I should blow off the G10 and relist =) I hope someone can buy this off me. I...

I turned the lead screw to fit a skate bearing then bored the black "cap" to fit the bearing. Only thing left is to drill 4 holes into the tail stock to capture the "cap" and hold it tight against...

First thing when I got it there was no power to the motor the controller was bad. I got a replacement from the seller for the cost of shipping the broken controller to them. They said it "worked" but...

Woodgas has potential but how about the engines? I took the recommended oil change of 3000 miles and a speed of 60 MPH and come up with a car needing an oil change every 4 days of continuous...

Was reading at http://www.motherearthnews.com about Wayne Keith who owns a pickup that he converted to woodgas. Uses it as a farm truck hauling hay and has put some serious woodgas miles on it doing...

I press stop and instantly motion is halted the problem is that means my servos have to also stop instantly. Is there anyway to make a program stop not be instant?

How do you think the relatively cheap chinese machines would be?
VMC330L mini CNC china machine center, View cnc vertical machining center, GOOD Product Details from Tengzhou City Good CNC Machine...

https://www.facebook.com/FadecEng
Has more specific information about the machine and the cost of the tool holders seems to be a flatrate $75.00 each.

You dont specify the material or tolerances. Would be beneficial to have include an IGES file of the solid model IMO.

Would be good to also specify if the drawings are first angle projection or...

http://www.automationtechnologiesinc.com/products-page/dc-servo-motor

I put together a servo system using components from kelinginc.net (aka AutomationTechnologiesInc) for less than $1000.00 but...

I have had a mini lathe for years but have not used it much, then when I started using it *alot* the motor controller stopped working. Its been sitting for a few months and I am convinced that trying...

I found one used BT30 tool holder for a 1" endmill and it puts into perspective the size of the BT30 taper.

Lyndex B3006 1000 1" End Mill Holder BT30 Taper | eBay

I searched ebay and see 2 pin header BINs of interest both of which I bought. One is 3x40 pin header for $0.99 and the pic shows gold plating another is 10x40 pin header for $0.99 and shows tin...

My bad I was just corrected from another forum. I got exactly what I bought!

I am not saying I am wrong but even if each pin is $.08 each wouldn't having them cutup like that still be wrong? The persons on the phone insist a single row header is what I got...

So I put in my order to mouser and this is what I get for 5 pin headers... But this is just 5 individual pins off a single row header right?

179760

I had someone else call them and tell them...

I've been looking on an imports websites and I wish I knew how to do it myself. That said my guess is that the bolton machine does rigid tapping just like in the video. Wish it came with a full...

There is a you tube video linked to from bolton website that shows it tapping and moving with decent rapid speeds even the tool changes are fairly quick. I have yet to see any feedback from someone...