2 X 48 Belt Grinder (again)

[rwm]

Thanks Mark. That's what I need to know!

The whole dang thing fell apart...

R

 

[Mark_f]

Thanks Mark. That's what I need to know!

The whole dang thing fell apart...
R

Why is it all apart? It looked good in the previous photos.

 

[kvt]

+1 on what happened. It did look good in the photos. With it put together I figured out why I was thinking the angle iron was in the way For some reason I thought it was a three wheel version.
Defiantly want to know what happened.

 

[rwm]

+1 on what happened. It did look good in the photos. With it put together I figured out why I was thinking the angle iron was in the way For some reason I thought it was a three wheel version.
Defiantly want to know what happened.

Hey, I was just kidding around! I pulled it apart to remove the layout fluid and sand the surfaces prior to final assembly. I wish I had a better way to finish aluminum. Hand sanding is a pain and you can never get out most of the scratches. I just went over it lightly to remove the superficial scratches and dirt. Anyone have any good ideas on finishing? Has anyone ever used a drum sander like they do for wood? How about a hand held orbital sander?
This is only a 48". The angle grinder would be in the way if I was making a 72" with 3 wheels for sure.
R

 

[Mark_f]

Hey, I was just kidding around! I pulled it apart to remove the layout fluid and sand the surfaces prior to final assembly. I wish I had a better way to finish aluminum. Hand sanding is a pain and you can never get out most of the scratches. I just went over it lightly to remove the superficial scratches and dirt. Anyone have any good ideas on finishing? Has anyone ever used a drum sander like they do for wood? How about a hand held orbital sander?
This is only a 48". The angle grinder would be in the way if I was making a 72" with 3 wheels for sure.
R

No....no..... An orbital sander will make tiny circles all over the part and it will look like crap. I hand sand in a straight line with 320 grit to clean and polish the same way with 400 after. Then you can use a buffer and aluminum polish to make a mirror finish.

 

[rwm]

I am almost finished with this!
It seems like the platten gets pretty warm when it runs. Is this normal? Will it damage the belt if it gets too hot?
What do ya'll think about adding a heat sink? Would it be useful or overkill? Keep in mind this runs at 5000 SPFM.



R

 

[Mark_f]

I am almost finished with this!
It seems like the platten gets pretty warm when it runs. Is this normal? Will it damage the belt if it gets too hot?
What do ya'll think about adding a heat sink? Would it be useful or overkill? Keep in mind this runs at 5000 SPFM.



R

If the platen gets too hot it is too close to the belt. It should barely touch the belt but be parralell with it. What is that round thing in front of the belt?

 

[rwm]

Got it Mark- I slotted the holes in the platten and moved it back til it was barely touching. That should do it. If not, the heat sink looks way cool!
I am working on the work table. That round thing is the support for the table:







The table seems like it will be real stable. I am going to order a larger piece of SS. I am thinking 7 x 7". In that last shot you can also see my provision for dust collection. The side door is hinged and it will have a draw latch for ease of belt changes. I hope I put the dust collection port in the optimal place. I'm wondering of it should be more posterior?

R

 

[Mark_f]

this thing is wayyyy cool! You will get a lot of grit in the bottom. Dust collection may be best in the rear. I like your table setup.

 

[Reeltor]

I haven't seen anyone use the same method of mounting the table before. Great job