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-   -   Cutting Wing Rib Forms #118 - Oklahoma USA (http://www.mechmate.com/forums/showthread.php?t=3586)

dbinokc Mon 21 November 2011 18:29

Cutting Wing Rib Forms #118 - Oklahoma USA
 
What is the size of of the angle iron that is used for the cross rails. I do not see a specification. It looks like maybe 1/4", but I am not sure.

dbinokc Mon 21 November 2011 18:33

Also, what is the meaning of the red hatching in the longitudinal direction I see in drawing 10-10-246-D. Is that some extra length? If so, how much?

dbinokc Mon 21 November 2011 18:38

Never mind, just as soon as I post, I find what I need at M1-10-110-M.

dbinokc Mon 21 November 2011 20:06

Learnin the ropes - Oklahoma USA
 
What is the english equivalent to 100mmx50mmx2mm rectangular tubing.
The closest in 32nd's would be 3/32, but I see nothing like that.

baseball43v3r Mon 21 November 2011 20:10

the closest equivalent would be 2 in by 4 in by 1/4 in. Also, try asking all your questions in the same thread, as each member is only allowed one build thread per machine.

dbinokc Mon 21 November 2011 20:27

I will be sure to keep keep everything in one thread. I am sure there was an FAQ I was supposed to read somewhere about that.

1/4in is almost 3 times the thickness of what is specified in the drawings. That would seem to add a lot of weight to the gantry. If I needed to go oversize like that, I would think I would be better off with 1/8 wall, if it can be found.

I also just noticed in the similar thread listing,

http://www.mechmate.com/forums/showthread.php?t=232

Too bad that did not pop up before I created this thread.

MetalHead Mon 21 November 2011 20:40

DB - goto the forum main page and look at the sections. In each section there are sticky threads at the top. Read those. Then look in the MechMate's already cutting area and sort on views and start reading through those threads .... did I mention a lot of reading :D. Also as you read more details of the plans will start to jump out at you.

MetalHead Mon 21 November 2011 20:43

I merged your threads.

dbinokc Mon 21 November 2011 21:48

OK,thanks.

dbinokc Tue 22 November 2011 10:19

On page 10-30-455P I see a reference to a higher drawing 10-30-400 W, but I can not find it in the supplied drawings. Perhaps it should be referring to drawing 10-30-420W?

I am also guessing that 10-30-455P should also indicate that 2 of these should be made, based off of what is in 10-30-420W?

As a background. I almost always make 3D models first. That way I know exactly what I need to do before I go into the shop and start cutting metal. I almost always find myself regretting it, when I do not go through this process.

2D drawings always have little ambiguites and errors. I like to find those problems before I get into the shop. I will probably have lots of other little "nitpicks" and questions as I go through this process.

dbinokc Tue 22 November 2011 14:02

Going over the z-axis drawings I notice what may be a typo.

Drawing 10-40-014A shows as being a 250mm slide, but in the drawing spreadsheet at the beginning of the plans, it shows 10-40-014A as a 350mm slide.

10-40-000 shows as a 250mm slide in both locations, so I am assuming that one is correctly labeled.

smreish Tue 22 November 2011 14:19

DB
What release of the drawings do you have? If your referring to the TITLE block in both sets the 10" refers to the stroke distance of the plate, not the actual distance. Use 10 40 330 and 10 40 334 for true length reference of the slide that fits your build requirements. The option allows for an additional 100mm of z-stroke for those needing the extra travel.

dbinokc Tue 22 November 2011 14:24

I do not see an overall revision number for the plans, but I downloaded them from the paid area about 2 days ago.

smreish Tue 22 November 2011 14:28

Then you have the current set.

dbinokc Tue 22 November 2011 14:32

Ok.
The two drawings I am referring to are the assembly drawings for the Z-Slide Assembly. Both drawings say 250mm.
In the drawing index, one is referred to as 250mm and the other 350mm.

smreish Tue 22 November 2011 14:44

Clearly a typo...just know that you have 2 options. Funny, your the first that I know of to pick that one up. With almost 100 known machines, I am certain that little type won't derail the build.

Good luck and don't pain over the drawings - pictures in the forum builds are far more educational. A good pictorial is JR's build.

dbinokc Tue 22 November 2011 17:03

Do you have a link to JR's build. When I do a search I find no user with that name.

smreish Tue 22 November 2011 17:22

#4 machine build....
http://www.mechmate.com/forums/showt...north+carolina

Gerald D Tue 22 November 2011 23:34

See Drawing problems and revisions required, considered and intended . . . . .

I seem to remember this one listed before, but that would be right place to list drawing problem issues.

dbinokc Wed 23 November 2011 23:32

What are the alternatives to using Antek for the power supply or transformer. I tried emailing them today to get some information about one of their power supplies for a non Mechmate project and was not very impressed with the response. In addition I have seen some posts on this forum about some difficulties when ordering from them.

As a result, I am rather reluctant to place an order with them.

KenC Thu 24 November 2011 00:28

The power supply transformers technology is over a century old.
Just bring your specs to any transformer people. Google is your friend...

MetalHead Thu 24 November 2011 05:35

DB - I buy from them all the time. They are a small company but make a solid product.

smreish Thu 24 November 2011 05:55

I order 1 or 2 a month from them without issues....along with the sister company Par Metal.
Jon is a good guy....they just have a very busy small business. No worries.

oliver2257 Thu 24 November 2011 15:10

DB,

I had occasion to call them a few times for some information and bought a fuse block. I find them to be very responsive. Never tried e mail.

dbinokc Thu 24 November 2011 16:35

Thanks for the feedback on them. I will go ahead and give them a try, but it sounds like dealing with them by phone may be better.

dbinokc Sun 27 November 2011 10:54

Where does the V=32*sqrt(L) formula for max voltage come from? I see it quoted a lot, but I can find no reference to how it was derived.

Alan_c Sun 27 November 2011 11:19

Gecko drive designer Mariss, see here, section 6

dbinokc Wed 30 November 2011 08:53

Can someone point me to some pictures of already wired control boxes.
I am trying to get an idea of how the wire is organized and how the interconnection between components is done.

Alan_c Wed 30 November 2011 11:24

See here post 182 and further down from post 203

dbinokc Wed 30 November 2011 11:41

Thanks Alan,
That is a great looking layout.
Is there a standard name for the termination blocks and cable connectors you used?


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