jeffp
starting to shine!
Member since September 2006
Posts: 43
|
Post by jeffp on Nov 10, 2006 13:26:05 GMT -5
Well i thought i would post some pics as i go alone. Mock up of shaft on plummers blocks First off i got a pair of plummers blocks with a 1" ID bearing. ( ID - internal diameter ) I then machined up a pair of blocks to mount them on. I found a pulley lying around but the ID was to big, so i made a bush to reduce the size Turning up the bush New bush in pulley Boring out the bush So i have just orded up a length of silver steel ( metal good for making shafts ) and it is time for some dinner. Tune in next week for another exciting episode Jeff P
|
|
|
Post by sandsman1 on Nov 10, 2006 13:31:03 GMT -5
hey jeff very cool you should put this in the tips section so it will not get burried to far --- i can tell allready your gonna have a first class grinder when done -- very nice job so far man
|
|
dtcmor
freely admits to licking rocks
Back to lickin' rocks again!
Member since May 2006
Posts: 898
|
Post by dtcmor on Nov 11, 2006 0:41:21 GMT -5
Great pics!! I can't wait to see the end results. I've got 2 bearing sets just like that only they are smaller (3/8" i.d.). I was trying to figure a way to use them for a tumbler but now........hmmm! Gives me a new idea only on a smaller scale!
|
|
jeffp
starting to shine!
Member since September 2006
Posts: 43
|
Post by jeffp on Nov 11, 2006 11:18:48 GMT -5
Next i cut out a 1/4" section of plate to mount the plummer blocks. I then made a mock up of the shaft to give myself some idea of the legth required. I just used the boxes the plummer blocks came in. They are about 1 3/4" thick. I am going to leave 2" between the wheels on the left hand side. These wil be two hard diamond wheels. On the other side i will have an expando. This gives me a shaft of about 20", and just in time my silver steel turns up. This type of steel comes in 13" lengths so i ordered a 39" rod to cover me. It is not the cheapest. I paid £32 for this length, but it is acurate along its length so i should not have any problems with it. Tomorrow i will start looking at a frame to mount it on. This means i will have to go find my welder. Once the frame is made i will bring all the bits so far together. Jeff P
|
|
jeffp
starting to shine!
Member since September 2006
Posts: 43
|
Post by jeffp on Nov 12, 2006 14:19:05 GMT -5
Looking round the shed i found some 1" angle, this will do nice for a frame. Well i found the welder but my rods where a little damp and being lazy i used them as is, so welds are not A1 but they will do. And another shot so far. Jeff P
|
|
jeffp
starting to shine!
Member since September 2006
Posts: 43
|
Post by jeffp on Nov 14, 2006 16:04:39 GMT -5
Ok onward. The next task is to "blue" up the base plate and blocks. "blue" is used to coat metal and allows you to make marks on the surface without marking the metal. Now that is done i can "mark out" these items for drilling. Using a height guage i marked out the locations to be drilled. Now thats done i can drill and counter sink my baseplate. Using the baseplate as i guide i can drill the frame and then tap the holes. And there we go. Base plate fixed. Next up will be mounting the plummer blocks. Jeff P
|
|
|
Post by sandsman1 on Nov 24, 2006 21:27:37 GMT -5
man even if i had all the tools id still be in the dark ahhaha
|
|
jeffp
starting to shine!
Member since September 2006
Posts: 43
|
Post by jeffp on Nov 25, 2006 16:00:32 GMT -5
Well, I have been buisy moving it along. Plumber blocks have been mounted and time to move onto a cab rest. I wanted something strong and fully adjustable, so here goes. Lets walk through it. First i needed some height adjustment. So i made a sloted support. Added a few washers and some standoffs Next i needed to be able to set the angle. Another slotted support. All assembled. So lets look back. We have a stable platform and cab rest. Time to start thinking about a water shield so i went down to the local sheet metal fabricators and asked if i can take a look in the scrap pile for some off cuts. So tomorrow i will be bashing some tin.
|
|
jeffp
starting to shine!
Member since September 2006
Posts: 43
|
Post by jeffp on Nov 25, 2006 16:01:39 GMT -5
If anyone has any questions, comments or suggestions please butt in, i dont bite Jeff P
|
|
|
Post by docone31 on Nov 25, 2006 19:03:36 GMT -5
Leave it to a machineist! Yeah. I really like. Suggestions. Even is you had air bearings in the motor, and everything was so balanced air pressure would affect its clearance, you will encounter vibration. You will need weight to act as a dampener. The 1/4" plate is well done, I would extend it to fill all the angle stock. That upcoming grinder looks like it wants to grind away. If you were my neighbor, I have some prints to be machined. Hey, when you have made the grinder, I posted some plans for a faceter in Tips on this forum.
|
|
jeffp
starting to shine!
Member since September 2006
Posts: 43
|
Post by jeffp on Nov 26, 2006 3:14:13 GMT -5
Doc, I just read the faceter plans, looks interesting.....
|
|
SteveHolmes
fully equipped rock polisher
Member since July 2009
Posts: 1,900
|
Post by SteveHolmes on Nov 26, 2006 12:04:44 GMT -5
Coming along nicel Jeff. Do you have a break for the sheet metal??? I am a sheet metal worker and if you need some help for some water shields, send me a PM. I could break it for you and probably make it out of aluminum(heavy) or even stainless if we have any lying around. LMK if you need any help, I'd be glad to help. Steve
|
|
jeffp
starting to shine!
Member since September 2006
Posts: 43
|
Post by jeffp on Nov 26, 2006 14:10:52 GMT -5
Steve, Thanks for the offer but i think postage to the UK could be expensive. Anyway i do have a small combination break press. Probably not up to your standard but here is what i did today. I made up a cardboard template to check against the wheel size. So a little tweeking and then i will have a go at TIG welding it up.
|
|
SteveHolmes
fully equipped rock polisher
Member since July 2009
Posts: 1,900
|
Post by SteveHolmes on Nov 26, 2006 20:06:37 GMT -5
Jeff, I honestly didn't realize nor read you were from the UK. Anyways, it doesn't look like you need any help...you just did fine. I would love to have some of that equipment at my own house. Keep up the fine work, and it looks like you'll be grinding in no time. Steve
|
|
|
Post by sandsman1 on Nov 26, 2006 20:53:33 GMT -5
hot dam jeff a first class job on the water shields man as good as any store bought ones, you can sure make the metal do what you want hahaha
|
|
|
Post by parfive on Nov 28, 2006 16:57:33 GMT -5
Nice work, Jeff!
What's the motor gonna bolt to?
Rich
|
|
|
Post by docone31 on Nov 28, 2006 19:38:29 GMT -5
You know what really stands out ? Your shop in general. You must be a Libra, it is spotless, organized, and efficient. Aside from the machinery, definately not junk, and the overall quality of the end product, It all looks just great. How many times have I said to myself, if I just had stuff like that, what I could make! I do. I do have stuff like that. My shop is so disorganized, I cannot find my head with two hands if someone put them on it. I cannot wait untill I see the lapidary work from that machine.
|
|
jeffp
starting to shine!
Member since September 2006
Posts: 43
|
Post by jeffp on Nov 29, 2006 13:57:06 GMT -5
Rich, I am thinking of making some kind of motor fixture that pivots at one end. This way it will keep its own belt tension. Doc, It may appear tidy on the outside but i have many draws full of many things and finding them can be a problem. Hmm i used that whatyoucallit about 6 months ago, i am sure i put is somewhere i would remember
|
|
|
Post by parfive on Nov 29, 2006 15:52:18 GMT -5
Jeff - A motor plate hinged to the back of your frame is simplest. It'll give you more belt tension than you'll ever need to run that machine. So you might want to incorporate a stop or screw adjustment to limit it. Sliding plate w/screw adjustment another option.
Whatever you build is gonna look good.
Rich
|
|
flatumbler
starting to spend too much on rocks
Now totally addicted!!!
Member since January 2007
Posts: 191
|
Post by flatumbler on Jan 18, 2007 21:25:31 GMT -5
I love the fact that you can build your own, and certainly wish I could do so myself. Problem being, no way near having that kind of workshop to make something like that lol. Hmmm different section for my next post, but that is really looking fantastic.
|
|