Very cool. I tried to make some a while back and it was a big fat FAIL. Yours are a much better design than mine was.

Your most original video so far! Great work!

@MojoMfg

5 жыл бұрын

Thanks! I really appreciate that!

Awesome Work! Cheers from the Dutch.

@MojoMfg

5 жыл бұрын

Thanks!

Great video. I made look alikes from flat bar 60x20x-length mm with 1 Allen key bolt M6. Pod machined to size 59x59x19. Thanks for making the video. Greetings from Holland.

@MojoMfg

4 жыл бұрын

Thanks! These didn't work out the best but I definitely learned a lot while making them

Great idea!

@MojoMfg

5 жыл бұрын

Thanks!

Great work!

@MojoMfg

3 жыл бұрын

Thanks!

Great video and awesome work keep the videos coming

@MojoMfg

5 жыл бұрын

Thanks! I plan to!

A vacuum pump is much more preferable than a vacuum generator, since you need an air compressor, in conjunction with the vacuum generator, and that air compressor needs a large tank, and it needs to be running almost nonstop.

Belo trabalho

cool project! you can quickly sort out the "clamping force" by multiplying the PSI x the area exposed to the vacuum. The larger the area the greater the holding force for the same vacuum pressure.

@MojoMfg

5 жыл бұрын

Yep just have to convert my inHg on the gage to PSI then we can figure that out.

@phoglite

5 жыл бұрын

@@MojoMfg so 24 inHg is about 11.7 psi, assume about 4 square inches of area, ~47 lb?

@MojoMfg

5 жыл бұрын

Yep, that's what I just figured up....not a lot

Really ingenious nice job man

@MojoMfg

5 жыл бұрын

Thanks!

@infinitemachines52

5 жыл бұрын

@@MojoMfg hey do you think might loose little vacuum from under the bolts?

@MojoMfg

5 жыл бұрын

I was afraid of that at first so that's why I got the vacuum gauge to check the vacuum with no pods attached and vacuum after I attached the pods. Both times it was running 25-26inHg. A perfect vacuum can only reach about 30inHg anyway, so I am kinda close

@infinitemachines52

5 жыл бұрын

@@MojoMfg ok i see very good info

I normally would just refer to that as a venturi instead of an ejector but I don't know if that's correct. Pierson vac plates hold about 28 inches of mercury so your not too shy of that, do you plan to use these for a specific part fixturing or just another work holding option in the shop?

@kaulquappenTV

5 жыл бұрын

as far as i know theese are called ejectors (at least my dad who is an salesman for SMC calls them so) we also called them ejectors in the company i worked in kzread.info/dash/bejne/rG2Bqs-nZs-2ZLw.html

@MojoMfg

5 жыл бұрын

Yeah I heard Pierson's were around 28inHg. I plan to just use this as another fixturing option, not for anything specific.

@MojoMfg

5 жыл бұрын

I actually think that's supposed to be inches of water, not mercury? Idk for sure though

@MojoMfg

5 жыл бұрын

Nevermind it is inHg haha

@riversvic

5 жыл бұрын

Hg is mercury

small good pod

Awesome. I’m going to try to make some for my machine. Where is the stl?

@MojoMfg

10 ай бұрын

Unfortunately I don't have the STL anymore. I must've gotten rid of it along the way for some reason

hey... like your design alot. Are you losing some vacuum thru the holes for the flat heads?? maybe an oring around the top of the countersinks??

@MojoMfg

4 жыл бұрын

I was still pulling almost a full vacuum. Just not enough surface area to create enough force to hold the part down

@joem6859

4 жыл бұрын

@@MojoMfg yep, you're right, small surface area

What kind of watch?

Quais as medidas desta meza??

Hi Garrett did you use a vacuum res. tank ?

@MojoMfg

5 жыл бұрын

No I did not

請問旁邊的接頭處的孔有沒有貫穿了另一邊的接頭孔處呢？

Very cool man. But I think has is bether to use a really vacuum pump. Is more expensive yes. But more safe. And if you use a bigger vacuum surface, you will increase the drag force. Our try to use a double ring

@MojoMfg

5 жыл бұрын

Yeah vacuum pump would be better and you can get good cheap ones from ebay. Double ring might help a little more as well.

@infinitemachines52

5 жыл бұрын

You talking about double ring where vacuum is between the rings?

@iDiveDOTtv

3 жыл бұрын

There's no need to have a bigger vacuum generator / pump. The only reason you need one is if there are any leaks. I use a little Piab one of these and it works perfectly. I think the timber CNC guys use larger pumps with more CFM but wood doesn't seal well.

Howdy again, hope your well MoJo, I would recommend a cheap vacuum pump (something like www.amazon.com/ZENY-Single-Stage-Economy-Conditioner-Refrigerant/dp/B012CFTYX4/ref=sr_1_4?keywords=vacuum+pump&qid=1551588067&s=gateway&sr=8-4) no idea if that's an ok quality one, but this way your compressor won't be running all the time. Also, slap a bit of silicone grease on the rubber gasket, will improve suction massively. You could even Arduino yourself a sensor that ran the vacuum pump off with a given vacuum and restarted it if the vacuum pressure dropped due to leakage. . .cheers, John

@MojoMfg

5 жыл бұрын

When I thought of a vacuum pump that is the one I was thinking of. I may have to grab that one if this SMC venturi doesn't work out but we'll test it. That is a good idea with the silicone grease, I'll have to grab some of that. That would be on heck of a setup with the arduino sensor, it would be pretty sweet though. Thanks for all the ideas!

man...pretty chips at 1:10...

@MojoMfg

5 жыл бұрын

Oh I know haha. I was so mad when I went back to edit it and realized the stupid camera wasn't focused right.

More commonly called a vacuum generator, not vacuum ejector.

@MojoMfg

11 ай бұрын

pneumatic vacuum generator = vacuum ejector hvacolink.com/vacuum-ejector/

Fuck, my work has a vacuum pod CNC. A Bessie rover. Its absolutely terrible. Dont waste your time