View Profile: dian - The Home Shop Machinist & Machinist's Workshop Magazine's BBS

06-14-2013, 12:08 PM

dian replied to a thread OT: How to for concrete in General

look it up. im too lazy.

20 replies | 1009 view(s)

06-14-2013, 12:06 PM

dian replied to a thread Propane conversion in General

i would think no high pressure, as the quantity is small. the water is goig to condense, so might there even be a vacum?

16 replies | 933 view(s)

06-14-2013, 12:00 PM

dian replied to a thread Which ATF, or does it not matter? in General

weirdly enought my atf (dextron 3) and acetone mix very well and stay mixed (well, dissolved) for weeks (until acetone has evaporated, somehow). its...

21 replies | 1675 view(s)

06-14-2013, 11:53 AM

dian replied to a thread Large capacitor inside my grinder? in General

"PSC motor..... cap is start/run. A bit smoother running than a regular cap start motor" why start/run? i thought psc motors didnt have a start...

18 replies | 891 view(s)

06-14-2013, 11:44 AM

dian replied to a thread a question about epoxy granite in General

i would get a small, unexpensive plate and have a go. i would think there is no way to lapp epoxy granite.

14 replies | 583 view(s)

06-14-2013, 11:41 AM

dian replied to a thread OT: How to for concrete in General

concrete shrinks a lot for several years. epoxy concrete doesnt. (almost doesnt.) polyester resin shrinks much more than epoxy and it also draws...

20 replies | 1009 view(s)

06-13-2013, 11:42 AM

dian replied to a thread are pin vice sets precision enough for holding small carbide? in General

if you put a ground pin in the vice, chuck it up and grind the shaft, you should get an acceptable runout.

18 replies | 998 view(s)

06-13-2013, 10:36 AM

dian replied to a thread 2 piece milling vice keeps slipping on table in General

so how big is the vise? if you have two 12 mm high strength bolts, they will clamp down with 12 tons of force. friction coefficient of 0.8 (dry)...

22 replies | 1728 view(s)

06-13-2013, 10:25 AM

dian replied to a thread DIY induction heater in General

i always thought it was just a coiled tube conected to some kind of power source. this starts simple, but gets out of hand quickly (i dont think you...

32 replies | 33336 view(s)

06-12-2013, 12:30 PM

dian replied to a thread DIY induction heater in General

15 x 240 = ? why do you need "frequency" at all?

32 replies | 33336 view(s)

06-12-2013, 12:11 PM

dian replied to a thread Four jaw setup in General

im always surprised, how well square stuff centers in a three-jaw.

14 replies | 1202 view(s)

06-12-2013, 11:28 AM

dian replied to a thread 2 piece milling vice keeps slipping on table in General

doublesided tape or emery cloth?

22 replies | 1728 view(s)

06-12-2013, 11:16 AM

dian replied to a thread diy pneumatic cylinders in General

interesting, so how long will a grinder run on that? "The only good fit is around the shaft and the shaft end guides, here I've done a nice...

22 replies | 1392 view(s)

06-12-2013, 10:56 AM

dian replied to a thread Carbide grinder won't run, need wiring help. in General

search this forum, sizing a start cap has been discussed several times. look for posts by jaakko, i believe.

15 replies | 712 view(s)

06-09-2013, 12:26 PM

dian replied to a thread Light on welding helmet? in General

so, im still looking. i have 18° ones with 50 cd and internal reflector. not great. is there anything more powerfull? i also got 120° 550 lm ones...

40 replies | 3218 view(s)

06-09-2013, 11:49 AM

dian replied to a thread Grinding chuck jaws? in General

thats exactly how i did mine, but i feel the preload back in that groove is not realistic, so i turned a taper of 0.01 mm into the jaws.

23 replies | 1243 view(s)

06-09-2013, 04:16 AM

dian replied to a thread metal suitable for replacement gibs? in General

i thought static friction of cast iron was higher.

9 replies | 497 view(s)

06-08-2013, 10:37 AM

dian replied to a thread why don't aero/hydro bearings come in tapered form? in General

what is "hydro" about this? arent they pneumatic?

8 replies | 459 view(s)

06-08-2013, 10:30 AM

dian replied to a thread Riffler files in General

are these really valorbe files? the price does not seem to be right. they cost what i am paying at the diys market.

8 replies | 672 view(s)

06-08-2013, 10:09 AM

dian replied to a thread any tips for "turning" a lathe carriage that is facing convex? (scraping) in General

so far i have not seen a chuck, that has a face running really true. "My conclusion (and I do stand to be corrected) is that high or low will...

24 replies | 1492 view(s)

06-08-2013, 08:46 AM

dian replied to a thread Grinding chuck jaws? in General

consider hard turning them.

23 replies | 1243 view(s)

06-07-2013, 01:04 PM

dian replied to a thread saving a universal motor in General

so, finally i know why i got this commutaror lathe: ...

12 replies | 745 view(s)

06-07-2013, 11:58 AM

dian replied to a thread any tips for "turning" a lathe carriage that is facing convex? (scraping) in General

"I soon found my carriage saddle backing off, all by itself while facing a part." that sounds weird.

24 replies | 1492 view(s)

06-07-2013, 11:48 AM

dian replied to a thread Announcing:Tram B Gone!! Tramless turret mill head adjustment in General

well, not that i have done this, but if you were to take some kind of cylinder square that you can bolt to the table, you could put some ground stock...

39 replies | 2269 view(s)

06-07-2013, 08:31 AM

dian replied to a thread Announcing:Tram B Gone!! Tramless turret mill head adjustment in General

why dont you stick the level into the spindle? you could have another rotating fixture to bolt to the table to check, if the mill has moved.

39 replies | 2269 view(s)

06-07-2013, 04:22 AM

dian replied to a thread Turning a recess? in General

the radius is on the right:

13 replies | 839 view(s)

06-06-2013, 02:14 PM

dian replied to a thread Turning a recess? in General

grind a clearance radius on a parting cutter. how this can be done with a boring bar escapes me. please advise.

13 replies | 839 view(s)

06-06-2013, 02:02 PM

dian replied to a thread saving a universal motor in General

i love this old vacum cleaner, because it sucks better than the new, $500 ones. it still sucks great, so its not plugged, i guess. it starts smelling...

12 replies | 745 view(s)

06-04-2013, 12:19 PM

dian replied to a thread spinning drill or work in General

"But if the work rotates, then the drill can only go in the center, as the revolving workpiece tries to bend it to the center at all times." i...

57 replies | 3015 view(s)

06-04-2013, 11:56 AM

dian replied to a thread Tramming aid for my Bridgeport. in General

http://bbs.homeshopmachinist.net/threads/57459-tramming-the-mill-with-a-brake-rotor?highlight=scraping+rotor post #6 while a 280 mm rotor (350...

22 replies | 1810 view(s)

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