45 replies to this topic

[gotboostedvr6]

$169 for the pair of Backtrack drums.

PM me for the address to send them to.

[Racer36]

What is the final thickness of the diamond, Dave? I may have a drum made like the one above to finish the sides.

[Frankie Schaffier]

Sent you a PM, Dave. Thanks.

[gotboostedvr6]

Dennis,

I'll get measurements this weekend for each grit.

Frankie,
Not sure I got your message

[Frankie Schaffier]

Show's read yesterday morning Dave, I'll send another.. You may have deleted because Voska is my friend.. 

[Pappy]

Hi David,

 

I sent one a couple of days ago too. 

 

Butch

[gotboostedvr6]

Yes you did. Apologies sirs.

[Pappy]

I had my drum done with 100 grit diamonds and it looks and works great. I do mostly silicone tires which are hard to do and I would recommend David's diamond drum service to everyone. 

[Racer36]

PM sent Dave.

[gotboostedvr6]

Bump TTT

Still $99 with free return anywhere shipping.

I have on hand 60, 70, 80, and 100 grit in Hudy drums and 80 and 100 grit in Backtrack.

[Pappy]

I've been using my diamond drum on silicone tires. I lubricate the tires with drops of Mean Green periodically and clean the drum with a chunk of a belt sander belt cleaning pad (It's like a big eraser) while it's still running.

 

It still takes a lot of time to do a set of silicone tires but this method is working real good.

[MSwiss]

I hosted a 1/32 event amount a month ago, and while I had heard truing silicones was a long process, I was still surprised when one of front runners, Denny Moscatelli, revealed it took him eight hours to get them how he liked them.

[gotboostedvr6]

Eight hours! I was surprised when Butch told me that a month ago. I tried it myself on Hudy machine and gave up after 15 min. The silicone looked like crap. Maybe I was rushing it...

My big grinder made a silcone tire shine after about 10 min. 8" 80 grit 1650 rpm/1000 rpm tire speed. This machine runs at 3458 surface feet min on abrasive + 262 surface feet min on tire = 3720 surface feet min.

a Hudy machine running at 4.5 volts, abrasive drum covers 780 surface feet min and 240 surface feet min for the tire = 1020 surface feet min.

Turning the voltage up on the Hudy increases surface feet but also causes large temperature increases due to the low mass of the drum.


My very short test makes me think a combination of low temperature grinding surfaces and high surface speed helps to expedite this process.

[SpeedyNH]

my problem is that CBD/Slot.It 32nd wheels (which use a slightly larger than 3/32 axle) are a loose fit on the Hudy machine's 3/32 one. as a result, when one is tightened down it is offset against the drum, and ends up out of round when installed back on the car.

if I could solve that issue, I'd be all over a new diamond drum.

[wbugenis]

Speedy,

 

We  use a lot of 2mm axles in the euro classes and there must be a lot of 2mm shafts for the Hudy around.

 

I know i have seen some 2mm to 3/32 adaptors  - they are easily made on a hobby lathe.

 

If you really want to use your Hudy, you could have 2mm to just over 3/32 adaptor made.

 

Or have one ground from a 3mm drill blank.  I think the Hudy uses a 3mm ?????

 

Bill

[gotboostedvr6]

The hudy tire shaft is 3mm through the bearings.

You could pickup a 1/8 hudy shaft and grind it down. I think Alpha can provide this service.

[SpeedyNH]

that might work. thanks!

[dalek]

As demonstrated in this some Hudy axles not straight video, you can check the straightness of a truer's axle by turning the tire 180 degrees after you've trued it.  

 

After I made the video, Hudy probably weeded all of the bad axles out of their inventory because about a month after I brought the problem to their attention, they had an axle sent to me and it's straight.

 

[gotboostedvr6]

Bump

[Pappy]

Bump, Bump. 

 

You won't be sorry for buying this product. 

[gotboostedvr6]

I'm no longer offering this service. It's been phased out in favor of version 2.

http://slotblog.net/...d-drum-service/