This is really embarrassing :o, I can not find a copy :o of my mechmate material list :o or my bolt list. If anyone has a copy :o please send them to me :o. Thanks :o:o:o:o:o:o

JR, that's why your thread's title hasn't changed for a while - I am scared that you might not be able to find it. :p

:p:p:D

How about you picking a title you can remember? :rolleyes:

I don't know if everyone finds the entertainment in the thread titles that I do but if it's not tooooo time consuming I would like it if you continue to name them. If it's a pain in the #%\ then say so and I'll come up with a name that will probably be a lot less entertaining.:D

J.R. when was the last time you cut some material for boats and do you have some pic`s of those projects?
Would like to see what it looks like.

Hennie I cut out a 19' boat just before I left for Hawaii. I will take some pictures when I return home.

J R

Is that a motor boat? I am thinking of building a kayak!

JR,
Did you take one of your home cut boats to Hawaii? :)

Nils-#12:)

Might that be the next adventure?

Nils try this site http://www.clcboats.com/their plans are nice, A friend and I have built the 18' and the 12' from their plans alone (no kit). It was truly a lot easier than I thought possible.

Heath I know you are joking ............ cause the second checked bag was $75.00, the boat would have been $1,000,000.00 :eek:

J R,

Thanks for the site. Did you put the plans into AutoCAD so you could cut them with your machine?

What have you actually built?

JR,
No I meant DRIVE it to Hawaii. ;)

Nils it was way before I had a machine. I'll check when I get back on the exact boats we built.

Made these for a local beer co, Wolf Beer. This particular brew is Timber Wolf. The cutouts will get mounted to the bar tap handles. The T is suppose to look like the wolf's head and the W is a fang. They are about .5" X 3.5" X 3.25". A few are Maple, but most are made of Ash.

Nice J R

Thanks Nils

Nothing beats REAL WOOD... I hate mdf...looking good JR. Did they supply you with the artwork or do you do it yourself ?

Nice little contract, make me feel like one of those contract making you enjoy every instance of owning a CNC ! Nicely done too ;).
I’m Curious JR, what size approx one is & how is it hold down and / or what was your cutting strategy / approach ?

Kobus I did one for "White Wolf" a WW with the outside of the Ws extended down to look like fangs (their design). I stayed with that idea and came up with the wolf look for the T. I used Turbocad and Sheetcam.

Robert I used 3 hand screw clamps to hold down a 1/2" X 6" X 48" board. Nested 2 parts side by side, used 5 small tabs (1/8" X 3/8") on each one to keep them in place. first I used a 1/8" upcut spiral bit to make 3 passes (50" ipm), the last one being a finish pass taking .010". I then used a 90 degree bit (same feed rate as above) to bevel the outside. The finished part is about 3 1/4" X 3 1/2"

How were you compensated? Bucks or beer?:)

Bucks AND Beers is even better :D :D

Doug they tried to sell me on a deal where I and all my friends would get free beer for the rest of our lives, but I don't even drink a 12 pack a month and I wasn't sure about you guys so I took the $50.00 instead.:eek::D:p

This is the link to the video of my MechMate cutting the TW logos.

http://www.youtube.com/watch?v=075xA1Yw7UE

J.R.

Very nice. Have you thought about cutting the V bit first? How big are the tabs you are using?

Thanks

Nils the tabs are a little less than 1/8" thick and 3/8" long. The upcut spiral will leave a rough top surface. The bevel bit last removes this and you will have very little hand sanding.

Let's really cool J.R.

In the video you mention a vacuum hold down. Are you using both vacuum and clamps to hold the work piece?

Wayne my spoil board is not glued down, so with high humidity it will cup a little. This is not a problem if you have a vacuum hold down system ..... it will pull it flat. Even if I'm using clamps I still use the vacuum.

I have a question for anyone that has the answer. I have a drill press I am putting into service. It came with a 1725 rpm motor, I have changed it to a 3450 rpm motor. I will be using a vfd and would like to have low rpm's for tapping. Is there any differents in the capabilities of the 2 motors??? Thanks

You have changed from a 4-pole motor to a 2-pole motor. The lowest speed at which you can run the motor has now doubled. The lowest speed is decided by the motor's cooling system (the fan on the back end) and the power output needed - if you want full power output, then you can only get that when the fan runs at full speed. Therefore, for long periods at reduced speeds, the power output must be reduced - still best to reduce the speeds by changing the belt pulleys.

Gerald it's an older Delta variable speed drill press (rpms controlled be turning a lever). I would like to use up to .5" taps. My question is .... with the manual speed set to 300 rpms (now 600 rpms) will I be able to set (with the vfd) the rpms low enough to easily tap?? By the way, the motor is totally enclosed and has an external fan. It's the 1.5 hp 3 phase motor that I will be running off of the 1 hp 3 phase vfd.
Should I look a 1725 rpm motor?

JR, I don't have a gut feel for how low the gearing/belting on that drillpress goes, but I do know for a fact that a 4 pole motor has double the torque of a 2 pole motor (both motors at the same HP).

JR,

What does your VFD owner's manual say? If I remember correctly, my VFD will only allow me to set the minimum hertz to 30; however, I seem to recall that there is a way to override that minimum. If you haven't bought your VFD yet, lots of places will let you download owner manuals from their websites.

Doug I do have it. It's a Allen-Bradley PowerFlex 4 Cat # 22A-B4P5N104. I'll check the manual and report back. Thanks

This is a link to the site where Donnie Parrott and a friend are building their first 2 cold mold boats. This is the 19' boat kit I cut just before going to Hawaii. We talked about it in post # 487. They made the second kit by copying the first :confused: .......... I think I could have saved them some time ;)???

http://www.thehulltruth.com/boating-...r-project.html

Dat link don't!

That link does work, but I found that the pics load slowly.

Fun!

Very nice work JR.

Hello Guys,

I was reading your updates about the 3 to 1 motor reduction. Very nice piece of work.
I`m going to use OM 7.2`s, which I already chose.
I would have liked to know if it is possible to take the Gear Head simply off?
So would it be then possible to experiment around with belt drives?
Which leads me to: Is it possible to make a 7:1 belt drive?
Maybe with two belts if the diam get to big!

It`s a thought only to minimize backlash ?!
Ideas?

Bye
Claus

See

What does a stepper motor look like inside? (geared Oriental Motor)