The twisting happens during the mold breakout just after the parts are cast. It is impossible to prevent on any , "open Finger" type of casting that is long and thin. I'm having the same problem with the PFE reefer steps. Some of them look like pretzels and I throw them away. When I did the Miner brake gear I had to make more of the brake release lever since the same thing happened to that part. The choice of, "brass" alloy helps a little, but only a little. The option is to change the master pattern and make up new molds. Then comes the problem of getting good master waxes to make the parts. Adding runners and I think what John called , "fine leads", make getting good waxes out of a complicated mold with little round rods running all over the place very difficult. I've sold so few of the PFE stirrup steps that I have no intention of redoing my patterns and molds. The PFE turned out to be the most time consuming project.
J. Rustermier --- In [email protected], "Bill Lane" <bill@...> wrote: > > I got a surprise box in the mail today with some test shots of the grab > irons. I say it was a surprise because as of about a week + ago it was in > question if they could be cast at all so this is a plus. My caster made it > happen like he always does. > > > > Since it was such a difficult pattern to cast he did not get complete shots. > The average yield of complete grabs was about 10. As you can see at left > they will have to be straightened a bit when you get them but I did NOT > break any in the 30+ I straightened so far. > > > > In the ONE grab iron I tested on an unassembled PRS car it appears the pins > do not slide in the mounting holes liked I had hoped in spite of my best > efforts. But the holes in the car are covered when you are done. You can us > one pin in the hole on one end and surface glue on the other. Just being > honest here guys.. Of course if you want these for use on brass cars none of > that matters. File the brackets flat and surface solder them on. > > > > I only have 5 test shots for now in hand. This is a one and done project. I > am not stocking any of them to sell in 6 months from now other than a few > for my own private stash. > > > > Since they are not complete shots I have to adjust the price accordingly. I > get changed the same price for all no matter how many grabs are complete - > and so will you. If there are 8 complete grab irons or 14 (I do have 1 like > that) they are the same price - $10.00 a tree plus a flat fee of $5.00 > shipping per order via USPS without insurance or tracking. I am not going to > count complete grab irons to make an order complete at $1.00 each but I will > guarantee at least 8 good grabs per tree. > > > > This was an S list "by popular demand" project. Sorry it did not go exactly > as I hoped but I tried and will deliver the parts in a timely manner. I will > give it a few weeks for everyone to get their orders placed and then place > my casting order quantity. Hopefully in about a month I will have the order > back ready to ship. > > > > > > I am taking orders and payments NOW. Only orders paid in full will be > counted in the production order. Email me directly if you want to use > PayPal. > > > > Make payment to: > > > > Bill Lane > > 305 Dubois Ave > > West Deptford NJ 08096 > > > > > > Thank You, > Bill Lane > > Modeling the Mighty Pennsy & PRSL in 1957 in S Scale since 1988 > > See my finished models at: > <http://www.lanestrains.com/> http://www.lanestrains.com > Look at what has been made in PRR in S Scale! > > > > See my layout progess at: > > <http://www.lanestrains.com/My_Layout.htm> > http://www.lanestrains.com/My_Layout.htm > > Custom Train Parts Design > <http://www.lanestrains.com/SolidWorks_Modeling.htm> > http://www.lanestrains.com/SolidWorks_Modeling.htm > > PRR Builders Photos Bought, Sold & Traded > (Trading is MUCH preferred) > <http://www.lanestrains.com/PRRphotos.xls> > http://www.lanestrains.com/PRRphotos.xls > > ***Join the PRR T&HS*** > The other members are not ALL like me! > <http://www.prrths.com/> http://www.prrths.com > <http://www.lanestrains.com/PRRTHS_Application.pdf> > http://www.lanestrains.com/PRRTHS_Application.pdf > > Join the Pennsylvania Reading Seashore Lines Historical Society > It's FREE to join! <http://www.prslhs.com/> http://www.prslhs.com > Preserving The Memory Of The PRSL > ------------------------------------ Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/S-Scale/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/S-Scale/join (Yahoo! ID required) <*> To change settings via email: [email protected] [email protected] <*> To unsubscribe from this group, send an email to: [email protected] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
