#241
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Half of the divider redone !
Had to redo this part of divider as the old one was not approved
new-upper.jpg |
#242
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beautiful
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#243
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Beautiful. But, I thought the other one was beautiful as well.
How about some close-ups of the cuts so we can see the cut quality? |
#244
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More pics
John, I knew you would be the first one to ask for closeups , other one was also good but my customer (you know who !!) is more demanding
closeup1.jpg Some manual cleaning of back side needed, i think again because I haven't surfaced the table yet. closeup2.jpg closeup3.jpg closeup4.jpg And below is the cutout part from the center of divider. closeup5.jpg Last edited by aniljangra; Sun 07 February 2010 at 07:02.. |
#245
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Great job. I love seeing your screens. I must say that surfacing your table will dramatically improve your quality of parts produced. When you are able you should definitely make it a priority to do so as you will reap the benefits of it. Keep up the great work and make the "Boss".... happy..
James |
#246
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Anil what is the thickness of your mdf? as the thinner your board gets the more difficult it is to get a good cut as there is a lot of flex in the board itself.Try cutting a full sheet of 3mm mdf compared to 16 mm thick.
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#247
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Very nice. Very clean. I don't see any chatter marks. Congratulations.
I think we can declare your DIY Drives and BoB a wonderful SUCCESS! |
#248
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Really nice work - inspiring for a slow one still in the info
gathering stage. Anil, what motors are you using, and how much did they cost? I think you got used ones? |
#249
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Nice & smooth cut, good job!
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#250
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Anil,
I reread this thread, and found the pic of your motor in post 41. http://www.mechmate.com/forums/showt...5&postcount=41 Thanks Prasad |
#251
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#252
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Quote:
Prasad, I used the motor as you saw i pic in post 41, but later changed x motors to smaller ones because I wanted to cut the space on both side of machine due to space problem. On Z-axis i am still running the bigger (and old) motor with no problem. so you can get the old motors and they will work without problem. I changed the motors not because of any problem but due to more space they were taking. |
#253
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Quote:
By the way this board used for screens is 8mm and there was some lifting in the center where there was no clamps. Quote:
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#254
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The opposite - you want downcut spiral bits to push the board down.
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#255
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I see, what I have now are "upcut" and need "downcut" bits.
I thought the terminology is somehow opposite Thanks |
#256
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Anil, if you cut thin boards get some of the double sided tape that one uses for packaging it holds your project flat and reduce your cutting speed, it works for me specially when I cut small letters.
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#257
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Hennie, I'll try using double tape next time.
I used double tape for PCB but not for mdf as I was concerned about it sticking on cutting bit ! Is that fine bit cutting through tape ? |
#258
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Anil,
I also use double sided tape to keep my jobs flush with the cutting table. The 1/8"(3.175mm) and the 1/4" (6.35mm) bits have no problems with the tape. I almost always use upcut bits but if the job lifts off the table then I will be forced to use downcut bits. You will have to reduce your cut speed with the downcut bit as it forces the chips down into the cut area as opposed to upcut bits which eject them upwards. Sorry for any confusion Jason |
#259
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Spindle Installed :)
Jason, Till I get downcut bits I will try double tape as suggested.
Got my spindle and made mounting plates for it. spindle.jpg Label says, GDZ-23, 80x215, 2.2KW 220V 8A, 24000 rpm, 400Hz mount0.jpg Bolting together top and bottom plates for machning. mount1.jpg Bore and attachment side are machined in one operation, and then cleaning other faces and drilling is done. mounted.jpg Mounted on MM and tested with Fuji VFD. Next week's agenda is to finish the cooling system and surfacing the table (finally ) |
#260
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Spindle working without any issues now, there was noise problem but installing common mode filter at VFD output solved the issue.
spindle00.jpg spindle01.jpg |
#261
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Anil, what is the green wire, how is it connected and where does it go?
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#262
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I think it is for earthing, just a guess.
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#263
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Yes, Its ground wire, spindle power wire shield is grounded at both ends.
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#265
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That looks great!
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#266
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Anil,
Again, excellent work. So is your spindle one of the ones referred to as a "Chinese" spindle? Also, what water pump did you use and what does your heat exchanger look like? |
#267
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Nice work, Anil. Are you going to varnish ?
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#268
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Thanks you all for looking in
Claus, I have no clue what can be done for finishing as I am new to the world of wood/MDF etc etc, need to look around a bit. John, yes its a "Chinese" spindle, connected to small submersible pump similar to fish tank pump. There is no radiator or heat exchanger, water just recirculates from a bucket, will post a pic if you want, but nothing fancy. Thinking of adding a float switch, just in case pump stops in unattended usage. |
#269
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Thanks, Anil.
Yeah, I figured the "heat exchanger" was something like a bucket of water and that the pump was something like a submersible fish tank pump. I've noted that some people have used a pump with "stronger" specifications than the every-day variety of fish tank pump and I was wondering what you were doing regarding the pump. As for finishing your relief carving, I like the MinWax stain products. One of the biggest problems in staining, is to get even coverage (no blotching). Also, depending on the wood species and stain product, you may have problems with grain raising. |
#270
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Quote:
Somebody mentioned that before you do final cut, spray surface with mist of water and then do final cut. Spraying will raise grain, and you will cut it in your final cut. |
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