nik
spending too much on rocks
Member since May 2019
Posts: 315
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Post by nik on Feb 11, 2021 16:43:25 GMT -5
After months of design variations and shipping delays, all of the various bits and materials for the reimagined grinder finally exist in one place. My goal is to get around a few of the shortcomings of my previous build. The 280 soft wheel is being swapped out for a 220 belt on the left hand expanding drum, and I added 3000 and 8000 soft wheels. The right hand drum and face plate will be outside the wet enclosure, with 14000 paste on a resin belt and an assortment of discs for final polish.  IMG_20210212_070345 by nik1924, on Flickr I test fit the rotating assembly last night, just to ground truth the drawings. There are a few more spacers to make. |
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Post by jasoninsd on Feb 11, 2021 17:14:38 GMT -5
That is absolutely drool-worthy! Fantastic to see all those wheels on a single arbor!  (By the way...I read your title as if you were expanding your 6-wheel home to a 10-wheel home! I was curious as to what that meant! LOL) |
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nik
spending too much on rocks
Member since May 2019
Posts: 315
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Post by nik on Feb 11, 2021 17:38:23 GMT -5
That is absolutely drool-worthy! Fantastic to see all those wheels on a single arbor! (By the way...I read your title as if you were expanding your 6-wheel home to a 10-wheel home! I was curious as to what that meant! LOL) Thanks, I'm excited to get it done and spinning. I edited the title to limit confusion   IMG_20191222_144649 by nik1924, on Flickr this is what it used to look like |
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Post by jasoninsd on Feb 11, 2021 17:44:07 GMT -5
That is absolutely drool-worthy! Fantastic to see all those wheels on a single arbor! (By the way...I read your title as if you were expanding your 6-wheel home to a 10-wheel home! I was curious as to what that meant! LOL) Thanks, I'm excited to get it done and spinning. I edited the title to limit confusion IMG_20191222_144649 by nik1924, on Flickr this is what it used to look like I loved the title the way it was!  I'd say you're about to be in 7th heaven...but I think you're going to be in 10th heaven!  Seriously though, I don't think it could get much better than this. A true "all-in-one"! |
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Post by stardiamond on Feb 11, 2021 20:09:15 GMT -5
Kudos for building your machine. A person can't have too many wheels. I have 10 and have space for 11. They aren't all on one arbor.
If I were going to build a machine, I would use 3 or 4 Genie spin on arbors, a Genie tray and hood, a motor connected to a threaded arbor and some Geysers. The screw on makes arbor swapping easy. Currently, I have a right hand arbor for grinding and one for pre-polishing and polishing. I like the idea of a smaller machine footprint.
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nik
spending too much on rocks
Member since May 2019
Posts: 315
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Post by nik on Feb 12, 2021 6:44:03 GMT -5
Kudos for building your machine. A person can't have too many wheels. I have 10 and have space for 11. They aren't all on one arbor. If I were going to build a machine, I would use 3 or 4 Genie spin on arbors, a Genie tray and hood, a motor connected to a threaded arbor and some Geysers. The screw on makes arbor swapping easy. Currently, I have a right hand arbor for grinding and one for pre-polishing and polishing. I like the idea of a smaller machine footprint. I can definitely understand the want of a smaller machine, but space is not at a premium for me right now. My main drivers for the redesign are the broader spread of wheels and not needing to stop or change parts to complete a standard cab. |
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Post by rmf on Feb 12, 2021 8:10:08 GMT -5
How much space are you leaving between your wheels? The DP I have is not enough.
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Post by stardiamond on Feb 12, 2021 11:00:35 GMT -5
Kudos for building your machine. A person can't have too many wheels. I have 10 and have space for 11. They aren't all on one arbor. If I were going to build a machine, I would use 3 or 4 Genie spin on arbors, a Genie tray and hood, a motor connected to a threaded arbor and some Geysers. The screw on makes arbor swapping easy. Currently, I have a right hand arbor for grinding and one for pre-polishing and polishing. I like the idea of a smaller machine footprint. I can definitely understand the want of a smaller machine, but space is not at a premium for me right now. My main drivers for the redesign are the broader spread of wheels and not needing to stop or change parts to complete a standard cab. I work on multiple cabs (5-6) at the same time. Since I use a recirculating water system, I need to change water, going from grinding to sanding to pre-polishing to avoid contamination. |
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Post by victor1941 on Feb 12, 2021 11:08:36 GMT -5
What rpm do you turn the wheels?
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nik
spending too much on rocks
Member since May 2019
Posts: 315
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Post by nik on Feb 12, 2021 12:45:22 GMT -5
What rpm do you turn the wheels? I'm aiming for about 1400 |
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nik
spending too much on rocks
Member since May 2019
Posts: 315
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Post by nik on Feb 12, 2021 13:26:27 GMT -5
How much space are you leaving between your wheels? The DP I have is not enough. The wheel spacing is 2-2.5 inches |
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Post by rmf on Feb 12, 2021 23:03:40 GMT -5
How much space are you leaving between your wheels? The DP I have is not enough. The wheel spacing is 2-2.5 inches Thanks for the info |
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nik
spending too much on rocks
Member since May 2019
Posts: 315
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Post by nik on Feb 19, 2021 4:00:59 GMT -5
A bit more progress has been made on the enclosure. I decided to use 1/4" HDPE sheet and aluminum angles with rivets this time around, and there is definitely a learning curve with the new material. I have spent so long working with metal that this slippery plastic just feels strange.  IMG_20210219_184001 by nik1924, on Flickr Over all dimensions are 39"wide, 16" front to back, and 11" tall. I still need to cut out the end plates and attach the aluminum c channel to the bottom so the bearing risers have a flat plane to mount to. |
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Post by jasoninsd on Feb 19, 2021 8:55:52 GMT -5
Thanks for the update and pic! I really enjoy watching builds like this. It makes me think one day I'll do something similar...but I know I'll "think about it" for a long time! LOL |
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Post by hummingbirdstones on Feb 19, 2021 8:58:50 GMT -5
That looks like it's going to be an epic machine, nik! |
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nik
spending too much on rocks
Member since May 2019
Posts: 315
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Post by nik on Feb 20, 2021 18:24:41 GMT -5
A little farther along, the end plates are cut and drilled, and the removable portion of the hood is finished aside from either a dozen nut plates or rivnuts. Next up is layout of the spine and bearing risers so I can accurately drill the shaft pass through in the right end plate.  IMG_20210220_175523 by nik1924, on Flickr |
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nik
spending too much on rocks
Member since May 2019
Posts: 315
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Post by nik on Feb 21, 2021 22:24:04 GMT -5
The rotating assembly has landed. It needs a little adjustment, and possibly one spacer changed. Then it is just the motor, lights and water system.  IMG_20210222_121122 by nik1924, on Flickr |
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aGates
has rocks in the head
Building a silver studio
Member since January 2021
Posts: 518
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Post by aGates on Mar 6, 2021 9:21:20 GMT -5
Beyond cool. I'm late for work because I couldn't stop reading and staring at the pics with big hopes of my own one day.
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nik
spending too much on rocks
Member since May 2019
Posts: 315
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Post by nik on Mar 8, 2021 2:42:11 GMT -5
More progress after a brief work related hiatus, responsibilities getting in the way of fun yet again. The water system manifold has been soldered and pressure tested. Only one of the 13 joints needed rework, and still waiting for the bracket to support the far left valve with the loc-line.  IMG_20210308_173229 by nik1924, on Flickr  IMG_20210308_173237 by nik1924, on Flickr |
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nik
spending too much on rocks
Member since May 2019
Posts: 315
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Post by nik on Mar 15, 2021 18:35:54 GMT -5
I had to take everything apart, for what I hope is the last time, to finalize the mounting points and belt routing. I figured that I would show some detail of the bearing support rail. It is a 5 x 1 3/4" channel with 3/8" wall thickness, and the riser blocks are held on with 1/2" grade 8 bolts.  IMG_20210316_091711 by nik1924, on Flickr  IMG_20210316_091701 by nik1924, on Flickr |
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